feat: page details section and backlinks (#2186)

* feat: page details section and backlinks

apps/client/package.json

@@ -25,7 +25,7 @@
     "@tabler/icons-react": "^3.40.0",
     "@tanstack/react-query": "5.90.17",
     "alfaaz": "^1.1.0",
-    "axios": "1.15.0",
+    "axios": "1.16.0",
     "blueimp-load-image": "^5.16.0",
     "clsx": "^2.1.1",
     "emoji-mart": "^5.6.0",
@@ -54,7 +54,6 @@
     "react-router-dom": "^7.13.1",
     "semver": "^7.7.4",
     "socket.io-client": "^4.8.3",
-    "tiptap-extension-global-drag-handle": "^0.1.18",
     "zod": "^4.3.6"
   },
   "devDependencies": {

apps/client/public/locales/en-US/translation.json

@@ -870,6 +870,12 @@
   "Previous 7 days": "Previous 7 days",
   "Previous 30 days": "Previous 30 days",
   "Search chats...": "Search chats...",
+  "Search chats": "Search chats",
+  "Ask anything... Use @ to mention pages": "Ask anything... Use @ to mention pages",
+  "Ask anything or search your workspace": "Ask anything or search your workspace",
+  "Welcome to {{name}}": "Welcome to {{name}}",
+  "Add files": "Add files",
+  "Mention a page": "Mention a page",
   "Start a new chat to see it here.": "Start a new chat to see it here.",
   "Summarize this page": "Summarize this page",
   "Toggle AI Chat": "Toggle AI Chat",
@@ -926,5 +932,56 @@
   "Settings navigation": "Settings navigation",
   "AI navigation": "AI navigation",
   "Breadcrumb": "Breadcrumb",
-  "Skip to main content": "Skip to main content"
+  "Synced block": "Synced block",
+  "Create a block that stays in sync across pages.": "Create a block that stays in sync across pages.",
+  "Editing original": "Editing original",
+  "Copy synced block": "Copy synced block",
+  "Unsync": "Unsync",
+  "Delete synced block": "Delete synced block",
+  "Synced to {{count}} other page_one": "Synced to {{count}} other page",
+  "Synced to {{count}} other page_other": "Synced to {{count}} other pages",
+  "ORIGINAL": "ORIGINAL",
+  "THIS PAGE": "THIS PAGE",
+  "No pages": "No pages",
+  "The original synced block no longer exists": "The original synced block no longer exists",
+  "You don't have access to this synced block": "You don't have access to this synced block",
+  "Failed to load this synced block": "Failed to load this synced block",
+  "Fixed editor toolbar": "Fixed editor toolbar",
+  "Show a formatting toolbar above the editor with quick access to common actions.": "Show a formatting toolbar above the editor with quick access to common actions.",
+  "Toggle fixed editor toolbar": "Toggle fixed editor toolbar",
+  "Normal text": "Normal text",
+  "More inline formatting": "More inline formatting",
+  "Subscript": "Subscript",
+  "Superscript": "Superscript",
+  "Inline code": "Inline code",
+  "Insert media": "Insert media",
+  "Mention": "Mention",
+  "Emoji": "Emoji",
+  "Columns": "Columns",
+  "More inserts": "More inserts",
+  "Embeds": "Embeds",
+  "Diagrams": "Diagrams",
+  "Advanced": "Advanced",
+  "Utility": "Utility",
+  "Decrease indent": "Decrease indent",
+  "Increase indent": "Increase indent",
+  "Clear formatting": "Clear formatting",
+  "Code block": "Code block",
+  "Experimental": "Experimental",
+  "Strikethrough": "Strikethrough",
+  "Undo": "Undo",
+  "Redo": "Redo",
+  "Backlinks": "Backlinks",
+  "Last updated by": "Last updated by",
+  "Last updated": "Last updated",
+  "Stats": "Stats",
+  "Word count": "Word count",
+  "Characters": "Characters",
+  "Incoming links": "Incoming links",
+  "Outgoing links": "Outgoing links",
+  "Incoming links ({{count}})": "Incoming links ({{count}})",
+  "Outgoing links ({{count}})": "Outgoing links ({{count}})",
+  "No pages link here yet.": "No pages link here yet.",
+  "This page doesn't link to other pages yet.": "This page doesn't link to other pages yet.",
+  "Verified until {{date}}": "Verified until {{date}}"
 }

apps/client/src/components/layouts/global/app-shell.module.css

@@ -27,23 +27,3 @@
     background: light-dark(var(--mantine-color-gray-4), var(--mantine-color-dark-5))
   }
 }
-
-.skipLink {
-  position: fixed;
-  left: 8px;
-  top: 8px;
-  padding: 8px 12px;
-  background: var(--mantine-color-blue-6);
-  color: #fff;
-  border-radius: 4px;
-  text-decoration: none;
-  z-index: 1000;
-  transform: translateY(-150%);
-
-  &:focus {
-    transform: translateY(0);
-    outline: 2px solid var(--mantine-color-blue-3);
-  }
-}
-
-

apps/client/src/components/layouts/global/aside.tsx

@@ -8,6 +8,7 @@ import { TableOfContents } from "@/features/editor/components/table-of-contents/
 import { useAtomValue } from "jotai";
 import { pageEditorAtom } from "@/features/editor/atoms/editor-atoms.ts";
 import AsideChatPanel from "@/ee/ai-chat/components/aside-chat-panel";
+import { PageDetailsAside } from "@/features/page-details/components/page-details-aside.tsx";
 
 export default function Aside() {
   const [{ tab }] = useAtom(asideStateAtom);
@@ -30,6 +31,10 @@ export default function Aside() {
       component = <AsideChatPanel />;
       title = "AI Chat";
       break;
+    case "details":
+      component = <PageDetailsAside />;
+      title = "Details";
+      break;
     default:
       component = null;
       title = null;

apps/client/src/components/layouts/global/global-app-shell.tsx

@@ -81,10 +81,6 @@ export default function GlobalAppShell({
   const showGlobalSidebar = !isSpaceRoute && !isSettingsRoute && !isAiRoute;
 
   return (
-    <>
-      <a href="#main-content" className={classes.skipLink}>
-        {t("Skip to main content")}
-      </a>
     <AppShell
       header={{ height: 45 }}
       navbar={{
@@ -151,6 +147,8 @@ export default function GlobalAppShell({
                 ? t("Table of contents")
                 : asideTab === "chat"
                   ? t("AI Chat")
+                  : asideTab === "details"
+                    ? t("Details")
                     : undefined
           }
         >
@@ -158,6 +156,5 @@ export default function GlobalAppShell({
         </AppShell.Aside>
       )}
     </AppShell>
-    </>
   );
 }

apps/client/src/components/layouts/global/hooks/atoms/sidebar-atom.ts

@@ -10,6 +10,7 @@ export const desktopSidebarAtom = atomWithWebStorage<boolean>(
 
 export const desktopAsideAtom = atom<boolean>(false);
 
+// Valid `tab` values: "" | "comments" | "toc" | "chat" | "details"
 type AsideStateType = {
   tab: string;
   isAsideOpen: boolean;

apps/client/src/components/settings/app-version.tsx

@@ -29,7 +29,7 @@ export default function AppVersion() {
       >
         <Indicator
           label={t("New update")}
-          color="dark"
+          color="gray"
           inline
           size={16}
           position="middle-end"

apps/client/src/components/ui/custom-avatar.tsx

@@ -42,6 +42,11 @@ function pickInitialsColor(name: string) {
   return SAFE_INITIALS_COLORS[hashName(name) % SAFE_INITIALS_COLORS.length];
 }
 
+function sanitizeInitialsSource(name: string) {
+  const sanitized = name.replace(/[^\p{L}\p{N}\s]/gu, " ").trim();
+  return sanitized || name;
+}
+
 export const CustomAvatar = React.forwardRef<
   HTMLInputElement,
   CustomAvatarProps
@@ -49,12 +54,13 @@ export const CustomAvatar = React.forwardRef<
   const avatarLink = getAvatarUrl(avatarUrl, type);
   const resolvedColor =
     !color || color === "initials" ? pickInitialsColor(name ?? "") : color;
+  const initialsSource = sanitizeInitialsSource(name ?? "");
 
   return (
     <Avatar
       ref={ref}
       src={avatarLink}
-      name={name}
+      name={initialsSource}
       alt={name}
       color={resolvedColor}
       {...props}

apps/client/src/ee/ai-chat/components/ai-chat-sidebar.tsx

@@ -137,7 +137,8 @@ export default function AiChatSidebar() {
 
       <TextInput
         className={classes.searchInput}
-        placeholder="Search chats..."
+        placeholder={t("Search chats...")}
+        aria-label={t("Search chats")}
         leftSection={<IconSearch size={14} />}
         size="xs"
         value={search}

apps/client/src/ee/ai-chat/components/aside-chat-panel.tsx

@@ -178,6 +178,7 @@ export default function AsideChatPanel() {
             href="/ai"
             variant="subtle"
             color="dark"
+            aria-label={t("New chat")}
             onClick={handleNewChat}
           >
             <IconPlus size={20} stroke={1.75} />
@@ -185,13 +186,23 @@ export default function AsideChatPanel() {
         </Tooltip>
 
         <Tooltip label={t("Open full page")} openDelay={250}>
-          <ActionIcon variant="subtle" color="dark" onClick={handleExpand}>
+          <ActionIcon
+            variant="subtle"
+            color="dark"
+            aria-label={t("Open full page")}
+            onClick={handleExpand}
+          >
             <IconArrowsDiagonal size={18} stroke={1.5} />
           </ActionIcon>
         </Tooltip>
 
         <Tooltip label={t("Close")} openDelay={250}>
-          <ActionIcon variant="subtle" color="dark" onClick={handleClose}>
+          <ActionIcon
+            variant="subtle"
+            color="dark"
+            aria-label={t("Close")}
+            onClick={handleClose}
+          >
             <IconX size={20} stroke={1.75} />
           </ActionIcon>
         </Tooltip>

apps/client/src/ee/ai-chat/components/chat-empty-state.tsx

@@ -65,7 +65,7 @@ export default function ChatEmptyState({ isStreaming, onSend, onStop }: Props) {
           isStreaming={isStreaming}
           onSend={onSend}
           onStop={onStop}
-          placeholder="Ask anything... Use @ to mention pages"
+          placeholder={t("Ask anything... Use @ to mention pages")}
           autofocus
         />
       </div>

apps/client/src/ee/ai-chat/components/chat-input.tsx

@@ -200,7 +200,7 @@ export default function ChatInput({
         link: false,
       }),
       Placeholder.configure({
-        placeholder: placeholder || "Ask anything... Use @ to mention pages",
+        placeholder: placeholder || t("Ask anything... Use @ to mention pages"),
       }),
       CharacterCount.configure({
         limit: 50000,
@@ -225,6 +225,10 @@ export default function ChatInput({
       }),
     ],
     editorProps: {
+      attributes: {
+        "aria-label": placeholder || t("Ask anything... Use @ to mention pages"),
+        "aria-multiline": "true",
+      },
       handleDOMEvents: {
         keydown: (_view, event) => {
           if (
@@ -275,6 +279,8 @@ export default function ChatInput({
         type="file"
         accept={ACCEPTED_FILE_TYPES}
         multiple
+        aria-label={t("Add files")}
+        tabIndex={-1}
         style={{ display: "none" }}
         onChange={(e) => handleFileSelect(e.target.files)}
       />

apps/client/src/ee/ai-chat/components/chat-tool-group.tsx

@@ -31,7 +31,16 @@ export default function ChatToolGroup({ toolCalls, isStreaming }: Props) {
     <div className={classes.toolGroup}>
       <div
         className={classes.toolGroupHeader}
+        role="button"
+        tabIndex={0}
+        aria-expanded={expanded}
         onClick={() => setExpanded((prev) => !prev)}
+        onKeyDown={(event) => {
+          if (event.key === "Enter" || event.key === " ") {
+            event.preventDefault();
+            setExpanded((prev) => !prev);
+          }
+        }}
       >
         {activeLabel ? (
           <IconLoader2 size={12} className={classes.processingSpinner} />

apps/client/src/ee/ai-chat/styles/ai-chat.module.css

@@ -98,7 +98,7 @@
   font-weight: 600;
   letter-spacing: 0.08em;
   text-transform: uppercase;
-  color: light-dark(var(--mantine-color-gray-6), var(--mantine-color-dark-2));
+  color: var(--mantine-color-dimmed);
   margin-bottom: var(--mantine-spacing-xs);
 }
 
@@ -125,7 +125,7 @@
 .suggestionsLabel {
   font-size: var(--mantine-font-size-xs);
   font-weight: 500;
-  color: light-dark(var(--mantine-color-gray-5), var(--mantine-color-dark-3));
+  color: var(--mantine-color-dimmed);
   text-transform: uppercase;
   letter-spacing: 0.5px;
   margin-bottom: var(--mantine-spacing-sm);

apps/client/src/ee/ai-chat/styles/chat-input.module.css

@@ -43,7 +43,7 @@
   margin-top: 6px;
   text-align: center;
   font-size: var(--mantine-font-size-xs);
-  color: light-dark(var(--mantine-color-gray-5), var(--mantine-color-dark-3));
+  color: var(--mantine-color-dimmed);
 }
 
 .attachmentChips {

apps/client/src/ee/ai-chat/styles/chat-sidebar.module.css

@@ -36,7 +36,7 @@
   padding: 4px var(--mantine-spacing-xs);
   font-size: var(--mantine-font-size-xs);
   font-weight: 600;
-  color: light-dark(var(--mantine-color-gray-6), var(--mantine-color-dark-2));
+  color: var(--mantine-color-dimmed);
   user-select: none;
 }
 
@@ -104,7 +104,7 @@
 
 .chatItemDate {
   font-size: var(--mantine-font-size-xs);
-  color: light-dark(var(--mantine-color-gray-5), var(--mantine-color-dark-3));
+  color: var(--mantine-color-dimmed);
   white-space: nowrap;
   transition: opacity 150ms;
 }

apps/client/src/ee/page-verification/components/page-verification-modal.tsx

@@ -118,10 +118,20 @@ export function PageVerificationBadge({
 
   if (status === "none" && readOnly) return null;
 
+  const tooltipLabel =
+    status === "verified" && verificationInfo?.expiresAt
+      ? t("Verified until {{date}}", {
+          date: new Date(verificationInfo.expiresAt).toLocaleDateString(
+            undefined,
+            { month: "long", day: "numeric", year: "numeric" },
+          ),
+        })
+      : getStatusLabel(status, t);
+
   return (
     <>
       {status !== "none" ? (
-        <Tooltip label={getStatusLabel(status, t)} withArrow openDelay={250}>
+        <Tooltip label={tooltipLabel} withArrow openDelay={250}>
           <Group
             gap={4}
             onClick={open}

apps/client/src/features/editor/components/bubble-menu/bubble-menu.module.css

@@ -28,6 +28,18 @@
   }
 }
 
+.colorSwatch:focus-visible {
+  outline: none;
+  box-shadow: 0 0 0 2px var(--mantine-color-blue-6);
+  position: relative;
+  z-index: 1;
+}
+
+.removeColor:focus-visible {
+  outline: none;
+  box-shadow: inset 0 0 0 2px var(--mantine-color-blue-6);
+}
+
 .buttonRoot {
   height: 34px;
   padding-left: rem(8);

apps/client/src/features/editor/components/bubble-menu/bubble-menu.tsx

@@ -27,7 +27,7 @@ import { isCellSelection, isTextSelected } from "@docmost/editor-ext";
 import { LinkSelector } from "@/features/editor/components/bubble-menu/link-selector.tsx";
 import { useTranslation } from "react-i18next";
 import { showAiMenuAtom, showLinkMenuAtom } from "@/features/editor/atoms/editor-atoms";
-import { workspaceAtom } from "@/features/user/atoms/current-user-atom";
+import { userAtom, workspaceAtom } from "@/features/user/atoms/current-user-atom";
 
 export interface BubbleMenuItem {
   name: string;
@@ -46,6 +46,9 @@ export const EditorBubbleMenu: FC<EditorBubbleMenuProps> = (props) => {
   const [showCommentPopup, setShowCommentPopup] = useAtom(showCommentPopupAtom);
   const workspace = useAtomValue(workspaceAtom);
   const isGenerativeAiEnabled = workspace?.settings?.ai?.generative === true;
+  const user = useAtomValue(userAtom);
+  const editorToolbarEnabled =
+    user?.settings?.preferences?.editorToolbar ?? false;
   const [, setDraftCommentId] = useAtom(draftCommentIdAtom);
   const showCommentPopupRef = useRef(showCommentPopup);
   const showAiMenuRef = useRef(showAiMenu);
@@ -149,7 +152,7 @@ export const EditorBubbleMenu: FC<EditorBubbleMenuProps> = (props) => {
       return isTextSelected(editor);
     },
     options: {
-      placement: "top",
+      placement: editorToolbarEnabled ? "bottom" : "top",
       offset: 8,
       onHide: () => {
         setIsNodeSelectorOpen(false);
@@ -188,6 +191,8 @@ export const EditorBubbleMenu: FC<EditorBubbleMenuProps> = (props) => {
             <div className={classes.divider} />
           </>
         )}
+        {!editorToolbarEnabled && (
+          <>
             <NodeSelector
               editor={props.editor}
               isOpen={isNodeSelectorOpen}
@@ -238,6 +243,8 @@ export const EditorBubbleMenu: FC<EditorBubbleMenuProps> = (props) => {
                 setIsTextAlignmentOpen(false);
               }}
             />
+          </>
+        )}
 
         <Tooltip label={t(commentItem.name)} withArrow withinPortal={false}>
           <ActionIcon

apps/client/src/features/editor/components/bubble-menu/color-selector.tsx

@@ -4,7 +4,6 @@ import {
   Button,
   Popover,
   rem,
-  ScrollArea,
   Text,
   Tooltip,
   SimpleGrid,
@@ -114,6 +113,63 @@ const HIGHLIGHT_COLORS: BubbleColorMenuItem[] = [
   },
 ];
 
+const COLOR_GRID_COLS = 5;
+
+function focusSwatch(grid: "text" | "highlight", index: number) {
+  const el = document.querySelector<HTMLElement>(
+    `[data-color-grid="${grid}"][data-color-index="${index}"]`,
+  );
+  el?.focus();
+}
+
+function handleColorKeyNav(
+  e: React.KeyboardEvent<HTMLDivElement>,
+  index: number,
+  grid: "text" | "highlight",
+) {
+  const cols = COLOR_GRID_COLS;
+  const total =
+    grid === "text" ? TEXT_COLORS.length : HIGHLIGHT_COLORS.length;
+  const col = index % cols;
+
+  if (e.key === "ArrowRight") {
+    e.preventDefault();
+    if (index < total - 1) focusSwatch(grid, index + 1);
+    return;
+  }
+  if (e.key === "ArrowLeft") {
+    e.preventDefault();
+    if (index > 0) focusSwatch(grid, index - 1);
+    return;
+  }
+  if (e.key === "ArrowDown") {
+    e.preventDefault();
+    const next = index + cols;
+    if (next < total) {
+      focusSwatch(grid, next);
+    } else if (grid === "text") {
+      focusSwatch("highlight", Math.min(col, HIGHLIGHT_COLORS.length - 1));
+    } else if (grid === "highlight") {
+      document
+        .querySelector<HTMLElement>('[data-color-grid="remove"]')
+        ?.focus();
+    }
+    return;
+  }
+  if (e.key === "ArrowUp") {
+    e.preventDefault();
+    const prev = index - cols;
+    if (prev >= 0) {
+      focusSwatch(grid, prev);
+    } else if (grid === "highlight") {
+      const lastRowStart =
+        Math.floor((TEXT_COLORS.length - 1) / cols) * cols;
+      focusSwatch("text", Math.min(lastRowStart + col, TEXT_COLORS.length - 1));
+    }
+    return;
+  }
+}
+
 export const ColorSelector: FC<ColorSelectorProps> = ({
   editor,
   isOpen,
@@ -157,13 +213,20 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
   );
 
   return (
-    <Popover width={220} opened={isOpen} withArrow>
+    <Popover
+      width={220}
+      opened={isOpen}
+      onChange={setIsOpen}
+      trapFocus
+      withArrow
+    >
       <Popover.Target>
         <Tooltip label={t("Text color")} withArrow>
           <Button
             variant="default"
             radius="0"
             rightSection={<IconChevronDown size={16} />}
+            onMouseDown={(e) => e.preventDefault()}
             onClick={() => setIsOpen(!isOpen)}
             data-text-color={activeColorItem?.color || ""}
             data-highlight-color={activeHighlightItem?.color || ""}
@@ -181,9 +244,8 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
         </Tooltip>
       </Popover.Target>
 
-      <Popover.Dropdown>
+      <Popover.Dropdown onMouseDown={(e) => e.preventDefault()}>
-        <ScrollArea.Autosize type="scroll" mah="400">
+        <Stack gap="md" p="2px">
-          <Stack gap="md">
             <Box>
               <Text size="sm" fw={600} mb="xs">
                 {t("Text color")}
@@ -207,6 +269,10 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                     <Box
                       role="button"
                       tabIndex={0}
+                      data-autofocus={index === 0 ? true : undefined}
+                      data-color-grid="text"
+                      data-color-index={index}
+                      className={classes.colorSwatch}
                       aria-label={t(name)}
                       aria-pressed={!!editorState[`text_${color}`]}
                       onClick={applyTextColor}
@@ -214,7 +280,9 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                         if (e.key === "Enter" || e.key === " ") {
                           e.preventDefault();
                           applyTextColor();
+                          return;
                         }
+                        handleColorKeyNav(e, index, "text");
                       }}
                       style={{
                         width: rem(28),
@@ -267,6 +335,9 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                     <Box
                       role="button"
                       tabIndex={0}
+                      data-color-grid="highlight"
+                      data-color-index={index}
+                      className={classes.colorSwatch}
                       aria-label={t(name)}
                       aria-pressed={!!editorState[`highlight_${color}`]}
                       onClick={applyHighlight}
@@ -274,7 +345,9 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                         if (e.key === "Enter" || e.key === " ") {
                           e.preventDefault();
                           applyHighlight();
+                          return;
                         }
+                        handleColorKeyNav(e, index, "highlight");
                       }}
                       style={{
                         width: rem(28),
@@ -310,16 +383,27 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
             <Button
               variant="default"
               fullWidth
+              data-color-grid="remove"
+              className={classes.removeColor}
               onClick={() => {
                 editor.commands.unsetColor();
                 editor.commands.unsetHighlight();
                 setIsOpen(false);
               }}
+              onKeyDown={(e) => {
+                if (e.key === "ArrowUp") {
+                  e.preventDefault();
+                  const lastRowStart =
+                    Math.floor(
+                      (HIGHLIGHT_COLORS.length - 1) / COLOR_GRID_COLS,
+                    ) * COLOR_GRID_COLS;
+                  focusSwatch("highlight", lastRowStart);
+                }
+              }}
             >
               {t("Remove color")}
             </Button>
           </Stack>
-        </ScrollArea.Autosize>
       </Popover.Dropdown>
     </Popover>
   );

apps/client/src/features/editor/components/bubble-menu/node-selector.tsx

@@ -12,6 +12,7 @@ import {
   IconInfoCircle,
   IconList,
   IconListNumbers,
+  IconQuote,
   IconTypography,
 } from "@tabler/icons-react";
 import { Popover, Button, ScrollArea, Tooltip } from "@mantine/core";
@@ -59,6 +60,7 @@ export const NodeSelector: FC<NodeSelectorProps> = ({
         isCodeBlock: ctx.editor.isActive("codeBlock"),
         isCallout: ctx.editor.isActive("callout"),
         isDetails: ctx.editor.isActive("details"),
+        isTransclusionSource: ctx.editor.isActive("transclusionSource"),
       };
     },
   });
@@ -122,6 +124,12 @@ export const NodeSelector: FC<NodeSelectorProps> = ({
           .run(),
       isActive: () => editorState?.isBlockquote,
     },
+    {
+      name: "Synced block",
+      icon: IconQuote,
+      command: () => editor.chain().focus().toggleTransclusionSource().run(),
+      isActive: () => editorState?.isTransclusionSource,
+    },
     {
       name: "Code",
       icon: IconCode,
@@ -147,9 +155,14 @@ export const NodeSelector: FC<NodeSelectorProps> = ({
   };
 
   return (
-    <Popover opened={isOpen} withArrow>
+    <Popover opened={isOpen} onChange={setIsOpen} withArrow>
       <Popover.Target>
-        <Tooltip label={t("Turn into")} withArrow withinPortal={false} disabled={isOpen}>
+        <Tooltip
+          label={t("Turn into")}
+          withArrow
+          withinPortal={false}
+          disabled={isOpen}
+        >
           <Button
             className={classes.buttonRoot}
             variant="default"

apps/client/src/features/editor/components/bubble-menu/text-alignment-selector.tsx

@@ -7,7 +7,7 @@ import {
   IconCheck,
   IconChevronDown,
 } from "@tabler/icons-react";
-import { Popover, Button, ScrollArea, Tooltip, rem } from "@mantine/core";
+import { Menu, Button, Tooltip, rem } from "@mantine/core";
 import type { Editor } from "@tiptap/react";
 import { useEditorState } from "@tiptap/react";
 import { useTranslation } from "react-i18next";
@@ -82,15 +82,22 @@ export const TextAlignmentSelector: FC<TextAlignmentProps> = ({
   const activeItem = items.filter((item) => item.isActive()).pop() ?? items[0];
 
   return (
-    <Popover opened={isOpen} withArrow>
+    <Menu
-      <Popover.Target>
+      shadow="md"
-        <Tooltip label={t("Text align")} withArrow withinPortal={false} disabled={isOpen}>
+      position="bottom-start"
+      withArrow={false}
+      opened={isOpen}
+      onChange={setIsOpen}
+    >
+      <Menu.Target>
+        <Tooltip label={t("Text align")} withArrow disabled={isOpen}>
           <Button
             variant="default"
             style={{ border: "none", height: "34px" }}
             px="5"
             radius="0"
             rightSection={<IconChevronDown size={16} />}
+            onMouseDown={(e) => e.preventDefault()}
             onClick={() => setIsOpen(!isOpen)}
             aria-label={t("Text align")}
             aria-haspopup="menu"
@@ -99,33 +106,25 @@ export const TextAlignmentSelector: FC<TextAlignmentProps> = ({
             <activeItem.icon style={{ width: rem(16) }} stroke={2} />
           </Button>
         </Tooltip>
-      </Popover.Target>
+      </Menu.Target>
 
-      <Popover.Dropdown>
+      <Menu.Dropdown>
-        <ScrollArea.Autosize type="scroll" mah={400}>
-          <Button.Group orientation="vertical">
         {items.map((item, index) => (
-              <Button
+          <Menu.Item
             key={index}
-                variant="default"
             leftSection={<item.icon size={16} />}
             rightSection={
-                  activeItem.name === item.name && <IconCheck size={16} />
+              activeItem.name === item.name ? <IconCheck size={16} /> : null
             }
-                justify="left"
-                fullWidth
             onClick={() => {
               item.command();
               setIsOpen(false);
             }}
-                style={{ border: "none" }}
           >
             {t(item.name)}
-              </Button>
+          </Menu.Item>
         ))}
-          </Button.Group>
+      </Menu.Dropdown>
-        </ScrollArea.Autosize>
+    </Menu>
-      </Popover.Dropdown>
-    </Popover>
   );
 };

apps/client/src/features/editor/components/emoji-menu/emoji-items.ts

@@ -1,30 +1,26 @@
 import { CommandProps, EmojiMenuItemType } from "./types";
-import { SearchIndex } from "emoji-mart";
+import { buildEmojiIndex, getFrequentlyUsedEmoji, sortFrequentlyUsedEmoji } from "./utils";
-import { getFrequentlyUsedEmoji, sortFrequentlyUsedEmoji } from "./utils";
 
-const searchEmoji = async (value: string): Promise<EmojiMenuItemType[]> => {
+const MAX_RESULTS = 5;
-  if (value === "") {
+
-    const frequentlyUsedEmoji = getFrequentlyUsedEmoji();
+const searchEmoji = async (query: string): Promise<EmojiMenuItemType[]> => {
-    return sortFrequentlyUsedEmoji(frequentlyUsedEmoji);
+  if (query === "") {
+    return sortFrequentlyUsedEmoji(getFrequentlyUsedEmoji());
   }
 
-  const emojis = await SearchIndex.search(value);
+  const q = query.toLowerCase();
-  const results = emojis.map((emoji: any) => {
+  const index = await buildEmojiIndex();
-    return {
-      id: emoji.id,
-      emoji: emoji.skins[0].native,
-      command: ({ editor, range }: CommandProps) => {
-        editor
-          .chain()
-          .focus()
-          .deleteRange(range)
-          .insertContent(emoji.skins[0].native + " ")
-          .run();
-      },
-    };
-  });
 
-  return results;
+  return index
+    .filter((e) => e.name.includes(q) || e.id.includes(q))
+    .slice(0, MAX_RESULTS)
+    .map((entry) => ({
+      id: entry.id,
+      emoji: entry.native,
+      command: ({ editor, range }: CommandProps) => {
+        editor.chain().focus().deleteRange(range).insertContent(entry.native + " ").run();
+      },
+    }));
 };
 
 export const getEmojiItems = async ({

apps/client/src/features/editor/components/emoji-menu/emoji-list.tsx

@@ -1,154 +1,208 @@
-import {
+import { Loader, Paper, ScrollArea, Text, UnstyledButton } from "@mantine/core";
-  ActionIcon,
-  Loader,
-  Paper,
-  ScrollArea,
-  SimpleGrid,
-  Text,
-} from "@mantine/core";
-import { EmojiMenuItemType } from "./types";
 import clsx from "clsx";
-import classes from "./emoji-menu.module.css";
 import { useCallback, useEffect, useRef, useState } from "react";
-import { GRID_COLUMNS, incrementEmojiUsage } from "./utils";
+import { useTranslation } from "react-i18next";
+import { EmojiMenuItemType } from "./types";
+import {
+  EmojiCategory,
+  EmojiIndexEntry,
+  getEmojiCategories,
+  incrementEmojiUsage,
+} from "./utils";
+import classes from "./emoji-menu.module.css";
 
-const EmojiList = ({
+const COLS = 8;
+
+const CAT_ICONS: Record<string, string> = {
+  people:   "😀",
+  nature:   "🌿",
+  foods:    "🍕",
+  activity: "🎮",
+  places:   "🗺️",
+  objects:  "🔧",
+  symbols:  "💯",
+  flags:    "🚩",
+};
+
+function EmojiList({
   items,
   isLoading,
   command,
   editor,
   range,
+  query = "",
 }: {
   items: EmojiMenuItemType[];
   isLoading: boolean;
-  command: any;
+  command: (item: EmojiMenuItemType) => void;
   editor: any;
   range: any;
-}) => {
+  query?: string;
-  const [selectedIndex, setSelectedIndex] = useState(0);
+}) {
-  const viewportRef = useRef<HTMLDivElement>(null);
+  const { t } = useTranslation();
+  const [idx, setIdx] = useState(0);
+  const [cats, setCats] = useState<EmojiCategory[]>([]);
+  const [activeCat, setActiveCat] = useState("");
+  const [focusZone, setFocusZone] = useState<"grid" | "tabs">("grid");
+  const listViewport = useRef<HTMLDivElement>(null);
+  const gridViewport = useRef<HTMLDivElement>(null);
+  const catBar = useRef<HTMLDivElement>(null);
 
-  const selectItem = useCallback(
+  const searching = query.length > 0;
-    (index: number) => {
+  const browseLoading = !searching && cats.length === 0;
-      const item = items[index];
+  const gridItems = cats.find((c) => c.id === activeCat)?.emojis ?? [];
-      if (item) {
+
+  useEffect(() => {
+    getEmojiCategories().then((data) => {
+      setCats(data);
+      setActiveCat((prev) => prev || data[0]?.id || "");
+    });
+  }, []);
+
+  useEffect(() => { setIdx(0); }, [query, activeCat]);
+
+  useEffect(() => { if (searching) setFocusZone("grid"); }, [searching]);
+
+  useEffect(() => {
+    if (focusZone !== "tabs") return;
+    catBar.current?.querySelector<HTMLElement>(`[data-cat="${activeCat}"]`)?.scrollIntoView({ block: "nearest", inline: "nearest" });
+  }, [activeCat, focusZone]);
+
+  useEffect(() => {
+    if (focusZone === "tabs") return;
+    const vp = searching ? listViewport.current : gridViewport.current;
+    vp?.querySelector<HTMLElement>(`[data-i="${idx}"]`)?.scrollIntoView({ block: "nearest" });
+  }, [idx, searching, focusZone]);
+
+  const pickSearchItem = useCallback(
+    (i: number) => {
+      const item = items[i];
+      if (!item) return;
       command(item);
       incrementEmojiUsage(item.id);
-      }
     },
-    [command, items]
+    [command, items],
+  );
+
+  const pickGridItem = useCallback(
+    (entry: EmojiIndexEntry) => {
+      editor.chain().focus().deleteRange(range).insertContent(entry.native + " ").run();
+      incrementEmojiUsage(entry.id);
+    },
+    [editor, range],
   );
 
   useEffect(() => {
-    const navigationKeys = [
+    function onKey(e: KeyboardEvent) {
-      "ArrowRight",
+      if (searching) {
-      "ArrowLeft",
+        if      (e.key === "ArrowDown") { e.preventDefault(); setIdx((i) => Math.min(i + 1, items.length - 1)); }
-      "ArrowUp",
+        else if (e.key === "ArrowUp")   { e.preventDefault(); setIdx((i) => Math.max(i - 1, 0)); }
-      "ArrowDown",
+        else if (e.key === "Enter")     { e.preventDefault(); pickSearchItem(idx); }
-      "Enter",
+      } else if (focusZone === "tabs") {
-    ];
+        const catIdx = cats.findIndex((c) => c.id === activeCat);
-    const onKeyDown = (e: KeyboardEvent) => {
+        if      (e.key === "ArrowRight") { e.preventDefault(); const next = cats[Math.min(catIdx + 1, cats.length - 1)]; if (next) setActiveCat(next.id); }
-      if (navigationKeys.includes(e.key)) {
+        else if (e.key === "ArrowLeft")  { e.preventDefault(); const prev = cats[Math.max(catIdx - 1, 0)]; if (prev) setActiveCat(prev.id); }
+        else if (e.key === "ArrowDown" || e.key === "Enter") { e.preventDefault(); setFocusZone("grid"); }
+        else if (e.key === "ArrowUp")    { e.preventDefault(); }
+      } else {
+        const total = gridItems.length;
+        if      (e.key === "ArrowRight") { e.preventDefault(); setIdx((i) => Math.min(i + 1, total - 1)); }
+        else if (e.key === "ArrowLeft")  { e.preventDefault(); setIdx((i) => Math.max(i - 1, 0)); }
+        else if (e.key === "ArrowDown")  { e.preventDefault(); setIdx((i) => Math.min(i + COLS, total - 1)); }
+        else if (e.key === "ArrowUp")    {
           e.preventDefault();
-
+          if (idx < COLS) setFocusZone("tabs");
-        if (e.key === "ArrowRight") {
+          else            setIdx((i) => Math.max(i - COLS, 0));
-          setSelectedIndex(
-            selectedIndex + 1 < items.length ? selectedIndex + 1 : selectedIndex
-          );
-          return true;
         }
-
+        else if (e.key === "Enter")      { e.preventDefault(); if (gridItems[idx]) pickGridItem(gridItems[idx]); }
-        if (e.key === "ArrowLeft") {
-          setSelectedIndex(
-            selectedIndex - 1 >= 0 ? selectedIndex - 1 : selectedIndex
-          );
-          return true;
       }
-
-        if (e.key === "ArrowUp") {
-          setSelectedIndex(
-            selectedIndex - GRID_COLUMNS >= 0
-              ? selectedIndex - GRID_COLUMNS
-              : selectedIndex
-          );
-          return true;
     }
+    document.addEventListener("keydown", onKey);
+    return () => document.removeEventListener("keydown", onKey);
+  }, [searching, items, idx, gridItems, pickSearchItem, pickGridItem, focusZone, cats, activeCat]);
 
-        if (e.key === "ArrowDown") {
+  return (
-          setSelectedIndex(
-            selectedIndex + GRID_COLUMNS < items.length
-              ? selectedIndex + GRID_COLUMNS
-              : selectedIndex
-          );
-          return true;
-        }
-
-        if (e.key === "Enter") {
-          selectItem(selectedIndex);
-          return true;
-        }
-        return false;
-      }
-    };
-    document.addEventListener("keydown", onKeyDown);
-    return () => {
-      document.removeEventListener("keydown", onKeyDown);
-    };
-  }, [items, selectedIndex, setSelectedIndex]);
-
-  useEffect(() => {
-    setSelectedIndex(0);
-  }, [items]);
-
-  useEffect(() => {
-    viewportRef.current
-      ?.querySelector(`[data-item-index="${selectedIndex}"]`)
-      ?.scrollIntoView({ block: "nearest" });
-  }, [selectedIndex]);
-
-  return items.length > 0 || isLoading ? (
     <Paper
       id="emoji-command"
-      p="0"
+      p={0}
       shadow="md"
       withBorder
+      style={{ width: 280 }}
       role="listbox"
-      aria-label="Emoji results"
+      aria-label={t("Emoji picker")}
-      aria-activedescendant={
-        items.length > 0 ? `emoji-command-option-${selectedIndex}` : undefined
-      }
     >
-      {isLoading && <Loader m="xs" color="blue" type="dots" />}
+      {searching ? (
-      {items.length > 0 && (
+        <>
-        <ScrollArea.Autosize
+          {isLoading && <Loader m="xs" size="xs" color="blue" type="dots" />}
-          viewportRef={viewportRef}
+          <ScrollArea.Autosize mah={260} scrollbarSize={6} viewportRef={listViewport}>
-          mah={250}
+            <div style={{ padding: 4 }}>
-          scrollbarSize={8}
+              {items.length === 0 && !isLoading ? (
-          pr="5"
+                <Text size="sm" c="dimmed" p="xs">{t("No results")}</Text>
-        >
+              ) : items.map((item, i) => (
-          <SimpleGrid cols={GRID_COLUMNS} p="xs" spacing="xs">
+                <UnstyledButton
-            {items.map((item, index: number) => (
-              <ActionIcon
-                data-item-index={index}
-                id={`emoji-command-option-${index}`}
-                role="option"
-                aria-selected={index === selectedIndex}
-                aria-label={item.id}
-                variant="transparent"
                   key={item.id}
-                className={clsx(classes.menuBtn, {
+                  data-i={i}
-                  [classes.selectedItem]: index === selectedIndex,
+                  w="100%"
-                })}
+                  className={clsx(classes.row, { [classes.active]: i === idx })}
-                onClick={() => selectItem(index)}
+                  onClick={() => pickSearchItem(i)}
+                  onMouseEnter={() => setIdx(i)}
+                  role="option"
+                  aria-selected={i === idx}
                 >
-                <Text size="xl">{item.emoji}</Text>
+                  <span style={{ fontSize: 20, lineHeight: 1, minWidth: 26 }}>{item.emoji}</span>
-              </ActionIcon>
+                  <Text size="sm" c="dimmed" ff="monospace" span>:{item.id}:</Text>
+                </UnstyledButton>
               ))}
-          </SimpleGrid>
+            </div>
           </ScrollArea.Autosize>
+        </>
+      ) : browseLoading ? (
+        <Loader m="xs" size="xs" color="blue" type="dots" />
+      ) : (
+        <>
+          <div className={classes.catBar} role="tablist" ref={catBar}>
+            {cats.map((c) => {
+              const isActive = c.id === activeCat;
+              const isFocused = isActive && focusZone === "tabs";
+              return (
+                <button
+                  key={c.id}
+                  data-cat={c.id}
+                  title={c.id}
+                  role="tab"
+                  aria-selected={isActive}
+                  className={clsx(classes.catTab, {
+                    [classes.catTabActive]: isActive,
+                    [classes.catTabFocused]: isFocused,
+                  })}
+                  onClick={() => { setActiveCat(c.id); setFocusZone("grid"); }}
+                  onMouseEnter={() => setFocusZone("grid")}
+                >
+                  {CAT_ICONS[c.id] ?? "🔣"}
+                </button>
+              );
+            })}
+          </div>
+          <ScrollArea.Autosize mah={220} scrollbarSize={6} viewportRef={gridViewport}>
+            <div className={classes.grid} style={{ gridTemplateColumns: `repeat(${COLS}, 1fr)` }}>
+              {gridItems.map((entry, i) => (
+                <button
+                  key={entry.id}
+                  data-i={i}
+                  title={`:${entry.id}:`}
+                  className={clsx(classes.emojiBtn, { [classes.active]: i === idx })}
+                  onClick={() => pickGridItem(entry)}
+                  onMouseEnter={() => setIdx(i)}
+                >
+                  {entry.native}
+                </button>
+              ))}
+            </div>
+          </ScrollArea.Autosize>
+        </>
       )}
     </Paper>
-  ) : null;
+  );
-};
+}
 
 export default EmojiList;

apps/client/src/features/editor/components/emoji-menu/emoji-menu.module.css

@@ -1,9 +1,13 @@
-.menuBtn {
+.row {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 6px 10px;
   border-radius: var(--mantine-radius-sm);
 
   &:hover {
     @mixin light {
-      background: var(--mantine-color-gray-2);
+      background: var(--mantine-color-gray-1);
     }
 
     @mixin dark {
@@ -12,7 +16,7 @@
   }
 }
 
-.selectedItem {
+.active {
   @mixin light {
     background: var(--mantine-color-gray-2);
   }
@@ -21,3 +25,83 @@
     background: var(--mantine-color-gray-light);
   }
 }
+
+.catBar {
+  display: flex;
+  gap: 2px;
+  padding: 4px 6px;
+  overflow-x: auto;
+  scrollbar-width: none;
+
+  @mixin light {
+    border-bottom: 1px solid var(--mantine-color-gray-2);
+  }
+
+  @mixin dark {
+    border-bottom: 1px solid var(--mantine-color-dark-4);
+  }
+}
+
+.catTab {
+  background: transparent;
+  border: none;
+  cursor: pointer;
+  font-size: 16px;
+  line-height: 1;
+  padding: 4px 5px;
+  border-radius: var(--mantine-radius-sm);
+  flex-shrink: 0;
+
+  &:hover {
+    @mixin light {
+      background: var(--mantine-color-gray-1);
+    }
+
+    @mixin dark {
+      background: var(--mantine-color-gray-light);
+    }
+  }
+}
+
+.catTabActive {
+  @mixin light {
+    background: var(--mantine-color-gray-2);
+  }
+
+  @mixin dark {
+    background: var(--mantine-color-gray-light);
+  }
+}
+
+.catTabFocused {
+  outline: 1px solid var(--mantine-color-blue-filled);
+  outline-offset: -1px;
+}
+
+.grid {
+  display: grid;
+  gap: 1px;
+  padding: 6px;
+}
+
+.emojiBtn {
+  background: transparent;
+  border: none;
+  cursor: pointer;
+  font-size: 20px;
+  line-height: 1;
+  padding: 3px;
+  border-radius: var(--mantine-radius-sm);
+  aspect-ratio: 1 / 1;
+
+  &:hover {
+    @mixin light {
+      background: var(--mantine-color-gray-1);
+    }
+
+    @mixin dark {
+      background: var(--mantine-color-gray-light);
+    }
+  }
+}
+

apps/client/src/features/editor/components/emoji-menu/render-emoji-items.ts

@@ -1,6 +1,5 @@
 import { ReactRenderer, useEditor } from "@tiptap/react";
 import EmojiList from "./emoji-list";
-import { init } from "emoji-mart";
 import {
   autoUpdate,
   computePosition,
@@ -37,10 +36,6 @@ const renderEmojiItems = () => {
       editor: ReturnType<typeof useEditor>;
       clientRect: () => DOMRect;
     }) => {
-      init({
-        data: async () => (await import("@emoji-mart/data")).default,
-      });
-
       component = new ReactRenderer(EmojiList, {
         props: { isLoading: true, items: [] },
         editor: props.editor,

apps/client/src/features/editor/components/emoji-menu/utils.ts

@@ -1,8 +1,4 @@
-import { CommandProps } from "./types";
+import { CommandProps, EmojiMartFrequentlyType, EmojiMenuItemType } from "./types";
-import { getEmojiDataFromNative } from "emoji-mart";
-import { EmojiMartFrequentlyType, EmojiMenuItemType } from "./types";
-
-export const GRID_COLUMNS = 10;
 
 export const LOCAL_STORAGE_FREQUENT_KEY = "emoji-mart.frequently";
 
@@ -19,41 +15,76 @@ export const DEFAULT_FREQUENTLY_USED_EMOJI_MART = `{
     "rocket": 1
 }`;
 
+export type EmojiIndexEntry = { id: string; name: string; native: string };
+
+let _emojiIndex: EmojiIndexEntry[] | null = null;
+
+export const buildEmojiIndex = async (): Promise<EmojiIndexEntry[]> => {
+  if (_emojiIndex) return _emojiIndex;
+  const { default: data } = await import("@emoji-mart/data");
+  _emojiIndex = (Object.values((data as any).emojis) as any[])
+    .filter((e) => e.id && e.name && e.skins?.[0]?.native)
+    .map((e) => ({
+      id: e.id as string,
+      name: (e.name as string).toLowerCase(),
+      native: e.skins[0].native as string,
+    }));
+  return _emojiIndex;
+};
+
 export const incrementEmojiUsage = (emojiId: string) => {
-  const frequentlyUsedEmoji =
+  const stored = JSON.parse(
-    JSON.parse(localStorage.getItem(LOCAL_STORAGE_FREQUENT_KEY) || DEFAULT_FREQUENTLY_USED_EMOJI_MART);
+    localStorage.getItem(LOCAL_STORAGE_FREQUENT_KEY) || DEFAULT_FREQUENTLY_USED_EMOJI_MART,
-  frequentlyUsedEmoji[emojiId]
-    ? (frequentlyUsedEmoji[emojiId] += 1)
-    : (frequentlyUsedEmoji[emojiId] = 1);
-  localStorage.setItem(
-    LOCAL_STORAGE_FREQUENT_KEY,
-    JSON.stringify(frequentlyUsedEmoji)
   );
+  stored[emojiId] = (stored[emojiId] ?? 0) + 1;
+  localStorage.setItem(LOCAL_STORAGE_FREQUENT_KEY, JSON.stringify(stored));
 };
 
 export const sortFrequentlyUsedEmoji = async (
-  frequentlyUsedEmoji: EmojiMartFrequentlyType
+  frequentlyUsedEmoji: EmojiMartFrequentlyType,
 ): Promise<EmojiMenuItemType[]> => {
-  const data = await Promise.all(
+  const index = await buildEmojiIndex();
-    Object.entries(frequentlyUsedEmoji).map(
+  const results: EmojiMenuItemType[] = Object.entries(frequentlyUsedEmoji)
-      async ([id, count]): Promise<EmojiMenuItemType> => ({
+    .map(([id, count]): EmojiMenuItemType | null => {
+      const entry = index.find((e) => e.id === id);
+      if (!entry) return null;
+      return {
         id,
         count,
-        emoji: (await getEmojiDataFromNative(id))?.native,
+        emoji: entry.native,
-        command: async ({ editor, range }: CommandProps) => {
+        command: ({ editor, range }: CommandProps) => {
-          editor
+          editor.chain().focus().deleteRange(range).insertContent(entry.native + " ").run();
-            .chain()
-            .focus()
-            .deleteRange(range)
-            .insertContent((await getEmojiDataFromNative(id))?.native + " ")
-            .run();
         },
+      };
     })
-    )
+    .filter((e): e is EmojiMenuItemType => e !== null);
-  );
+  return results.sort((a, b) => (b.count ?? 0) - (a.count ?? 0)).slice(0, 5);
-  return data.sort((a, b) => b.count - a.count);
 };
 
-export const getFrequentlyUsedEmoji = () => {
+export const getFrequentlyUsedEmoji = (): EmojiMartFrequentlyType => {
-  return JSON.parse(localStorage.getItem(LOCAL_STORAGE_FREQUENT_KEY) || DEFAULT_FREQUENTLY_USED_EMOJI_MART);
+  return JSON.parse(
-}
+    localStorage.getItem(LOCAL_STORAGE_FREQUENT_KEY) || DEFAULT_FREQUENTLY_USED_EMOJI_MART,
+  );
+};
+
+export type EmojiCategory = { id: string; emojis: EmojiIndexEntry[] };
+
+let _cats: EmojiCategory[] | null = null;
+
+export const getEmojiCategories = async (): Promise<EmojiCategory[]> => {
+  if (_cats) return _cats;
+  const [{ default: data }, index] = await Promise.all([
+    import("@emoji-mart/data"),
+    buildEmojiIndex(),
+  ]);
+  const byId = new Map(index.map((e) => [e.id, e]));
+  _cats = ((data as any).categories as { id: string; emojis: string[] }[])
+    .map((cat) => ({
+      id: cat.id,
+      emojis: cat.emojis
+        .map((id) => byId.get(id))
+        .filter((e): e is EmojiIndexEntry => !!e),
+    }))
+    .filter((c) => c.emojis.length > 0);
+  return _cats;
+};

apps/client/src/features/editor/components/fixed-toolbar/fixed-toolbar.module.css

@@ -0,0 +1,72 @@
+.fixedToolbar {
+  position: fixed;
+  top: calc(var(--app-shell-header-offset, 0rem) + 45px);
+  inset-inline-start: var(--app-shell-navbar-offset, 0rem);
+  inset-inline-end: var(--app-shell-aside-offset, 0rem);
+  z-index: 50;
+  display: flex;
+  align-items: center;
+  background: var(--mantine-color-body);
+  border-bottom: 1px solid
+    light-dark(var(--mantine-color-gray-2), var(--mantine-color-dark-4));
+  overflow-x: auto;
+}
+
+.fixedToolbar::-webkit-scrollbar {
+  height: 2px;
+}
+
+.fixedToolbar::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.fixedToolbar::-webkit-scrollbar-thumb {
+  background: light-dark(
+    var(--mantine-color-gray-4),
+    var(--mantine-color-dark-3)
+  );
+  border-radius: 1px;
+}
+
+.inner {
+  display: flex;
+  align-items: center;
+  flex-wrap: nowrap;
+  gap: 4px;
+  padding: 4px 8px;
+  margin-inline: auto;
+}
+
+.inner > * {
+  flex-shrink: 0;
+}
+
+.spacer {
+  height: 45px;
+}
+
+.divider {
+  flex-shrink: 0;
+  width: 1px;
+  height: 20px;
+  margin: 0 4px;
+  background: light-dark(
+    var(--mantine-color-gray-3),
+    var(--mantine-color-dark-4)
+  );
+}
+
+.active,
+.active:hover {
+  color: var(--mantine-color-blue-6);
+  background-color: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-dark-5)
+  );
+}
+
+@media print {
+  .fixedToolbar {
+    display: none;
+  }
+}

apps/client/src/features/editor/components/fixed-toolbar/fixed-toolbar.tsx

@@ -0,0 +1,65 @@
+import { FC } from "react";
+import { useAtomValue } from "jotai";
+import { pageEditorAtom } from "@/features/editor/atoms/editor-atoms";
+import { useToolbarState } from "./use-toolbar-state";
+import { BlockTypeGroup } from "./groups/block-type-group";
+import { InlineMarksGroup } from "./groups/inline-marks-group";
+import { ColorGroup } from "./groups/color-group";
+import { ListsGroup } from "./groups/lists-group";
+import { LinkGroup } from "./groups/link-group";
+import { AlignmentGroup } from "./groups/alignment-group";
+import { MediaGroup } from "./groups/media-group";
+import { QuickInsertsGroup } from "./groups/quick-inserts-group";
+import { MoreInsertsGroup } from "./groups/more-inserts-group";
+import { HistoryGroup } from "./groups/history-group";
+import { AskAiGroup } from "./groups/ask-ai-group";
+import { workspaceAtom } from "@/features/user/atoms/current-user-atom";
+import classes from "./fixed-toolbar.module.css";
+
+export const FixedToolbar: FC = () => {
+  const editor = useAtomValue(pageEditorAtom);
+  const state = useToolbarState(editor);
+  const workspace = useAtomValue(workspaceAtom);
+  const isGenerativeAiEnabled = workspace?.settings?.ai?.generative === true;
+
+  if (!editor || !state) return null;
+
+  return (
+    <>
+      <div
+        className={classes.fixedToolbar}
+        role="toolbar"
+        aria-label="Editor toolbar"
+        onMouseDown={(e) => e.preventDefault()}
+      >
+        <div className={classes.inner}>
+          {/* {isGenerativeAiEnabled && (
+            <>
+              <AskAiGroup />
+              <div className={classes.divider} />
+            </>
+          )} */}
+          <BlockTypeGroup editor={editor} />
+          <div className={classes.divider} />
+          <InlineMarksGroup editor={editor} state={state} />
+          <div className={classes.divider} />
+          <ColorGroup editor={editor} />
+          <div className={classes.divider} />
+          <ListsGroup editor={editor} state={state} />
+          <div className={classes.divider} />
+          <LinkGroup />
+          <div className={classes.divider} />
+          <AlignmentGroup editor={editor} />
+          <div className={classes.divider} />
+          <MediaGroup editor={editor} />
+          <div className={classes.divider} />
+          <QuickInsertsGroup editor={editor} />
+          <MoreInsertsGroup editor={editor} />
+          <div className={classes.divider} />
+          <HistoryGroup editor={editor} state={state} />
+        </div>
+      </div>
+      <div className={classes.spacer} aria-hidden />
+    </>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/alignment-group.tsx

@@ -0,0 +1,28 @@
+import { FC, useEffect, useState } from "react";
+import type { Editor } from "@tiptap/react";
+import { TextAlignmentSelector } from "@/features/editor/components/bubble-menu/text-alignment-selector";
+
+interface Props {
+  editor: Editor;
+}
+
+export const AlignmentGroup: FC<Props> = ({ editor }) => {
+  const [isOpen, setIsOpen] = useState(false);
+
+  useEffect(() => {
+    if (!isOpen) return;
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape") setIsOpen(false);
+    };
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [isOpen]);
+
+  return (
+    <TextAlignmentSelector
+      editor={editor}
+      isOpen={isOpen}
+      setIsOpen={setIsOpen}
+    />
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/ask-ai-group.tsx

@@ -0,0 +1,23 @@
+import { FC } from "react";
+import { Button } from "@mantine/core";
+import { IconSparkles } from "@tabler/icons-react";
+import { useSetAtom } from "jotai";
+import { useTranslation } from "react-i18next";
+import { showAiMenuAtom } from "@/features/editor/atoms/editor-atoms";
+
+export const AskAiGroup: FC = () => {
+  const { t } = useTranslation();
+  const setShowAiMenu = useSetAtom(showAiMenuAtom);
+
+  return (
+    <Button
+      variant="subtle"
+      color="dark"
+      size="xs"
+      leftSection={<IconSparkles size={14} />}
+      onClick={() => setShowAiMenu(true)}
+    >
+      {t("Ask AI")}
+    </Button>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/block-type-group.tsx

@@ -0,0 +1,108 @@
+import { FC } from "react";
+import type { Editor } from "@tiptap/react";
+import { useEditorState } from "@tiptap/react";
+import { Button, Menu } from "@mantine/core";
+import {
+  IconBlockquote,
+  IconBraces,
+  IconChevronDown,
+  IconH1,
+  IconH2,
+  IconH3,
+  IconMenu4,
+  IconTypography,
+} from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+
+interface Props {
+  editor: Editor;
+}
+
+export const BlockTypeGroup: FC<Props> = ({ editor }) => {
+  const { t } = useTranslation();
+
+  const state = useEditorState({
+    editor,
+    selector: (ctx) => ({
+      isHeading1: ctx.editor.isActive("heading", { level: 1 }),
+      isHeading2: ctx.editor.isActive("heading", { level: 2 }),
+      isHeading3: ctx.editor.isActive("heading", { level: 3 }),
+      isBlockquote: ctx.editor.isActive("blockquote"),
+      isCodeBlock: ctx.editor.isActive("codeBlock"),
+    }),
+  });
+
+  let label = t("Normal text");
+  if (state.isHeading1) label = t("Heading 1");
+  else if (state.isHeading2) label = t("Heading 2");
+  else if (state.isHeading3) label = t("Heading 3");
+  else if (state.isBlockquote) label = t("Quote");
+  else if (state.isCodeBlock) label = t("Code block");
+
+  return (
+    <Menu shadow="md" position="bottom-start" withArrow={false}>
+      <Menu.Target>
+        <Button
+          variant="subtle"
+          color="dark"
+          size="xs"
+          rightSection={<IconChevronDown size={14} />}
+        >
+          {label}
+        </Button>
+      </Menu.Target>
+      <Menu.Dropdown>
+        <Menu.Item
+          leftSection={<IconTypography size={16} />}
+          onClick={() =>
+            editor.chain().focus().toggleNode("paragraph", "paragraph").run()
+          }
+        >
+          {t("Text")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconH1 size={16} />}
+          onClick={() =>
+            editor.chain().focus().toggleHeading({ level: 1 }).run()
+          }
+        >
+          {t("Heading 1")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconH2 size={16} />}
+          onClick={() =>
+            editor.chain().focus().toggleHeading({ level: 2 }).run()
+          }
+        >
+          {t("Heading 2")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconH3 size={16} />}
+          onClick={() =>
+            editor.chain().focus().toggleHeading({ level: 3 }).run()
+          }
+        >
+          {t("Heading 3")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconBlockquote size={16} />}
+          onClick={() => editor.chain().focus().toggleBlockquote().run()}
+        >
+          {t("Quote")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconBraces size={16} />}
+          onClick={() => editor.chain().focus().toggleCodeBlock().run()}
+        >
+          {t("Code block")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconMenu4 size={16} />}
+          onClick={() => editor.chain().focus().setHorizontalRule().run()}
+        >
+          {t("Divider")}
+        </Menu.Item>
+      </Menu.Dropdown>
+    </Menu>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/color-group.tsx

@@ -0,0 +1,24 @@
+import { FC, useEffect, useState } from "react";
+import type { Editor } from "@tiptap/react";
+import { ColorSelector } from "@/features/editor/components/bubble-menu/color-selector";
+
+interface Props {
+  editor: Editor;
+}
+
+export const ColorGroup: FC<Props> = ({ editor }) => {
+  const [isOpen, setIsOpen] = useState(false);
+
+  useEffect(() => {
+    if (!isOpen) return;
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape") setIsOpen(false);
+    };
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [isOpen]);
+
+  return (
+    <ColorSelector editor={editor} isOpen={isOpen} setIsOpen={setIsOpen} />
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/history-group.tsx

@@ -0,0 +1,44 @@
+import { FC } from "react";
+import type { Editor } from "@tiptap/react";
+import { ActionIcon, Tooltip } from "@mantine/core";
+import { IconArrowBackUp, IconArrowForwardUp } from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+import type { ToolbarState } from "../use-toolbar-state";
+
+interface Props {
+  editor: Editor;
+  state: ToolbarState;
+}
+
+export const HistoryGroup: FC<Props> = ({ editor, state }) => {
+  const { t } = useTranslation();
+
+  return (
+    <ActionIcon.Group>
+      <Tooltip label={t("Undo")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Undo")}
+          disabled={!state.canUndo}
+          onClick={() => editor.chain().focus().undo().run()}
+        >
+          <IconArrowBackUp size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Tooltip label={t("Redo")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Redo")}
+          disabled={!state.canRedo}
+          onClick={() => editor.chain().focus().redo().run()}
+        >
+          <IconArrowForwardUp size={16} />
+        </ActionIcon>
+      </Tooltip>
+    </ActionIcon.Group>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/inline-marks-group.tsx

@@ -0,0 +1,131 @@
+import { FC } from "react";
+import type { Editor } from "@tiptap/react";
+import { ActionIcon, Menu, Tooltip } from "@mantine/core";
+import {
+  IconBold,
+  IconChevronDown,
+  IconClearFormatting,
+  IconCode,
+  IconIndentDecrease,
+  IconIndentIncrease,
+  IconItalic,
+  IconStrikethrough,
+  IconSubscript,
+  IconSuperscript,
+  IconUnderline,
+} from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+import clsx from "clsx";
+import type { ToolbarState } from "../use-toolbar-state";
+import classes from "../fixed-toolbar.module.css";
+
+interface Props {
+  editor: Editor;
+  state: ToolbarState;
+}
+
+export const InlineMarksGroup: FC<Props> = ({ editor, state }) => {
+  const { t } = useTranslation();
+
+  return (
+    <ActionIcon.Group>
+      <Tooltip label={t("Bold")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Bold")}
+          aria-pressed={state.isBold}
+          className={clsx({ [classes.active]: state.isBold })}
+          onClick={() => editor.chain().focus().toggleBold().run()}
+        >
+          <IconBold size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Tooltip label={t("Underline")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Underline")}
+          aria-pressed={state.isUnderline}
+          className={clsx({ [classes.active]: state.isUnderline })}
+          onClick={() => editor.chain().focus().toggleUnderline().run()}
+        >
+          <IconUnderline size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Tooltip label={t("Italic")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Italic")}
+          aria-pressed={state.isItalic}
+          className={clsx({ [classes.active]: state.isItalic })}
+          onClick={() => editor.chain().focus().toggleItalic().run()}
+        >
+          <IconItalic size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Menu shadow="md" position="bottom-start" withArrow={false}>
+        <Menu.Target>
+          <ActionIcon
+            variant="subtle"
+            color="dark"
+            size="md"
+            aria-label={t("More inline formatting")}
+          >
+            <IconChevronDown size={14} />
+          </ActionIcon>
+        </Menu.Target>
+        <Menu.Dropdown>
+          <Menu.Item
+            leftSection={<IconStrikethrough size={16} />}
+            onClick={() => editor.chain().focus().toggleStrike().run()}
+          >
+            {t("Strikethrough")}
+          </Menu.Item>
+          <Menu.Item
+            leftSection={<IconCode size={16} />}
+            onClick={() => editor.chain().focus().toggleCode().run()}
+          >
+            {t("Inline code")}
+          </Menu.Item>
+          <Menu.Item
+            leftSection={<IconSubscript size={16} />}
+            onClick={() => editor.chain().focus().toggleSubscript().run()}
+          >
+            {t("Subscript")}
+          </Menu.Item>
+          <Menu.Item
+            leftSection={<IconSuperscript size={16} />}
+            onClick={() => editor.chain().focus().toggleSuperscript().run()}
+          >
+            {t("Superscript")}
+          </Menu.Item>
+          <Menu.Divider />
+          <Menu.Item
+            leftSection={<IconIndentIncrease size={16} />}
+            onClick={() => editor.chain().focus().indent().run()}
+          >
+            {t("Increase indent")}
+          </Menu.Item>
+          <Menu.Item
+            leftSection={<IconIndentDecrease size={16} />}
+            onClick={() => editor.chain().focus().outdent().run()}
+          >
+            {t("Decrease indent")}
+          </Menu.Item>
+          <Menu.Divider />
+          <Menu.Item
+            leftSection={<IconClearFormatting size={16} />}
+            onClick={() => editor.chain().focus().unsetAllMarks().run()}
+          >
+            {t("Clear formatting")}
+          </Menu.Item>
+        </Menu.Dropdown>
+      </Menu>
+    </ActionIcon.Group>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/link-group.tsx

@@ -0,0 +1,6 @@
+import { FC } from "react";
+import { LinkSelector } from "@/features/editor/components/bubble-menu/link-selector";
+
+export const LinkGroup: FC = () => {
+  return <LinkSelector />;
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/lists-group.tsx

@@ -0,0 +1,61 @@
+import { FC } from "react";
+import type { Editor } from "@tiptap/react";
+import { ActionIcon, Tooltip } from "@mantine/core";
+import { IconCheckbox, IconList, IconListNumbers } from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+import clsx from "clsx";
+import type { ToolbarState } from "../use-toolbar-state";
+import classes from "../fixed-toolbar.module.css";
+
+interface Props {
+  editor: Editor;
+  state: ToolbarState;
+}
+
+export const ListsGroup: FC<Props> = ({ editor, state }) => {
+  const { t } = useTranslation();
+
+  return (
+    <ActionIcon.Group>
+      <Tooltip label={t("Bullet List")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Bullet List")}
+          aria-pressed={state.isBulletList}
+          className={clsx({ [classes.active]: state.isBulletList })}
+          onClick={() => editor.chain().focus().toggleBulletList().run()}
+        >
+          <IconList size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Tooltip label={t("Numbered List")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Numbered List")}
+          aria-pressed={state.isOrderedList}
+          className={clsx({ [classes.active]: state.isOrderedList })}
+          onClick={() => editor.chain().focus().toggleOrderedList().run()}
+        >
+          <IconListNumbers size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Tooltip label={t("To-do List")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("To-do List")}
+          aria-pressed={state.isTaskList}
+          className={clsx({ [classes.active]: state.isTaskList })}
+          onClick={() => editor.chain().focus().toggleTaskList().run()}
+        >
+          <IconCheckbox size={16} />
+        </ActionIcon>
+      </Tooltip>
+    </ActionIcon.Group>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/media-group.tsx

@@ -0,0 +1,118 @@
+import { FC } from "react";
+import type { Editor } from "@tiptap/react";
+import { ActionIcon, Menu, Tooltip } from "@mantine/core";
+import {
+  IconFileTypePdf,
+  IconMovie,
+  IconMusic,
+  IconPaperclip,
+  IconPhoto,
+} from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+import { uploadImageAction } from "@/features/editor/components/image/upload-image-action";
+import { uploadVideoAction } from "@/features/editor/components/video/upload-video-action";
+import { uploadAudioAction } from "@/features/editor/components/audio/upload-audio-action";
+import { uploadAttachmentAction } from "@/features/editor/components/attachment/upload-attachment-action";
+import { uploadPdfAction } from "@/features/editor/components/pdf/upload-pdf-action";
+
+interface Props {
+  editor: Editor;
+}
+
+type UploadFn = (
+  file: File,
+  editor: Editor,
+  pos: number,
+  pageId: string,
+  ...rest: any[]
+) => void;
+
+function pickFile(
+  editor: Editor,
+  accept: string,
+  multiple: boolean,
+  upload: UploadFn,
+  extra?: boolean,
+) {
+  // @ts-ignore — editor.storage.pageId is set by PageEditor.onCreate
+  const pageId = editor.storage?.pageId as string | undefined;
+  if (!pageId) return;
+
+  const input = document.createElement("input");
+  input.type = "file";
+  input.accept = accept;
+  input.multiple = multiple;
+  input.style.display = "none";
+  document.body.appendChild(input);
+  input.onchange = () => {
+    if (input.files?.length) {
+      for (const file of input.files) {
+        const pos = editor.view.state.selection.from;
+        if (extra !== undefined) {
+          upload(file, editor, pos, pageId, extra);
+        } else {
+          upload(file, editor, pos, pageId);
+        }
+      }
+    }
+    input.remove();
+  };
+  input.click();
+}
+
+export const MediaGroup: FC<Props> = ({ editor }) => {
+  const { t } = useTranslation();
+
+  return (
+    <Menu shadow="md" position="bottom-start" withArrow={false}>
+      <Menu.Target>
+        <Tooltip label={t("Insert media")} withArrow>
+          <ActionIcon
+            variant="subtle"
+            color="dark"
+            size="md"
+            aria-label={t("Insert media")}
+          >
+            <IconPhoto size={16} />
+          </ActionIcon>
+        </Tooltip>
+      </Menu.Target>
+      <Menu.Dropdown>
+        <Menu.Item
+          leftSection={<IconPhoto size={16} />}
+          onClick={() => pickFile(editor, "image/*", true, uploadImageAction)}
+        >
+          {t("Image")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconMovie size={16} />}
+          onClick={() => pickFile(editor, "video/*", true, uploadVideoAction)}
+        >
+          {t("Video")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconMusic size={16} />}
+          onClick={() => pickFile(editor, "audio/*", true, uploadAudioAction)}
+        >
+          {t("Audio")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconFileTypePdf size={16} />}
+          onClick={() =>
+            pickFile(editor, "application/pdf", false, uploadPdfAction)
+          }
+        >
+          PDF
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconPaperclip size={16} />}
+          onClick={() =>
+            pickFile(editor, "", true, uploadAttachmentAction, true)
+          }
+        >
+          {t("File attachment")}
+        </Menu.Item>
+      </Menu.Dropdown>
+    </Menu>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/more-inserts-group.tsx

@@ -0,0 +1,217 @@
+import { FC } from "react";
+import type { Editor } from "@tiptap/react";
+import { ActionIcon, Menu, Tooltip } from "@mantine/core";
+import {
+  IconAppWindow,
+  IconCalendar,
+  IconCaretRightFilled,
+  IconChevronDown,
+  IconInfoCircle,
+  IconMath,
+  IconMathFunction,
+  IconRotate2,
+  IconSitemap,
+  IconTag,
+} from "@tabler/icons-react";
+import IconExcalidraw from "@/components/icons/icon-excalidraw";
+import IconMermaid from "@/components/icons/icon-mermaid";
+import IconDrawio from "@/components/icons/icon-drawio";
+import {
+  AirtableIcon,
+  FigmaIcon,
+  FramerIcon,
+  GoogleDriveIcon,
+  GoogleSheetsIcon,
+  LoomIcon,
+  MiroIcon,
+  TypeformIcon,
+  VimeoIcon,
+  YoutubeIcon,
+} from "@/components/icons";
+import { useTranslation } from "react-i18next";
+
+interface Props {
+  editor: Editor;
+}
+
+export const MoreInsertsGroup: FC<Props> = ({ editor }) => {
+  const { t } = useTranslation();
+
+  const setEmbed = (provider: string) =>
+    editor.chain().focus().setEmbed({ provider }).run();
+
+  const insertDate = () => {
+    const currentDate = new Date().toLocaleDateString("en-US", {
+      year: "numeric",
+      month: "long",
+      day: "numeric",
+    });
+    editor.chain().focus().insertContent(currentDate).run();
+  };
+
+  return (
+    <Menu shadow="md" position="bottom-start" withArrow={false} width={240}>
+      <Menu.Target>
+        <Tooltip label={t("More inserts")} withArrow>
+          <ActionIcon
+            variant="subtle"
+            color="dark"
+            size="md"
+            aria-label={t("More inserts")}
+          >
+            <IconChevronDown size={16} />
+          </ActionIcon>
+        </Tooltip>
+      </Menu.Target>
+      <Menu.Dropdown mah={400} style={{ overflowY: "auto" }}>
+        <Menu.Label>{t("Advanced")}</Menu.Label>
+        <Menu.Item
+          leftSection={<IconInfoCircle size={16} />}
+          onClick={() => editor.chain().focus().toggleCallout().run()}
+        >
+          {t("Callout")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconCaretRightFilled size={16} />}
+          onClick={() => editor.chain().focus().setDetails().run()}
+        >
+          {t("Toggle block")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconTag size={16} />}
+          onClick={() =>
+            editor.chain().focus().setStatus({ text: "", color: "gray" }).run()
+          }
+        >
+          {t("Status")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconSitemap size={16} />}
+          onClick={() => editor.chain().focus().insertSubpages().run()}
+        >
+          {t("Subpages")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconRotate2 size={16} />}
+          onClick={() =>
+            editor.chain().focus().insertTransclusionSource().run()
+          }
+        >
+          {t("Synced block")}
+        </Menu.Item>
+
+        <Menu.Divider />
+        <Menu.Label>{t("Diagrams")}</Menu.Label>
+        <Menu.Item
+          leftSection={<IconMermaid size={16} />}
+          onClick={() =>
+            editor
+              .chain()
+              .focus()
+              .setCodeBlock({ language: "mermaid" })
+              .insertContent("flowchart LR\n    A --> B")
+              .run()
+          }
+        >
+          {t("Mermaid diagram")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconDrawio size={16} />}
+          onClick={() => editor.chain().focus().setDrawio().run()}
+        >
+          Draw.io
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconExcalidraw size={16} />}
+          onClick={() => editor.chain().focus().setExcalidraw().run()}
+        >
+          Excalidraw
+        </Menu.Item>
+
+        <Menu.Divider />
+        <Menu.Label>{t("Embeds")}</Menu.Label>
+        <Menu.Item
+          leftSection={<IconAppWindow size={16} />}
+          onClick={() => setEmbed("iframe")}
+        >
+          Iframe
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<YoutubeIcon size={16} />}
+          onClick={() => setEmbed("youtube")}
+        >
+          YouTube
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<VimeoIcon size={16} />}
+          onClick={() => setEmbed("vimeo")}
+        >
+          Vimeo
+        </Menu.Item>
+        <Menu.Item leftSection={<LoomIcon size={16} />} onClick={() => setEmbed("loom")}>
+          Loom
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<FigmaIcon size={16} />}
+          onClick={() => setEmbed("figma")}
+        >
+          Figma
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<AirtableIcon size={16} />}
+          onClick={() => setEmbed("airtable")}
+        >
+          Airtable
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<TypeformIcon size={16} />}
+          onClick={() => setEmbed("typeform")}
+        >
+          Typeform
+        </Menu.Item>
+        <Menu.Item leftSection={<MiroIcon size={16} />} onClick={() => setEmbed("miro")}>
+          Miro
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<FramerIcon size={16} />}
+          onClick={() => setEmbed("framer")}
+        >
+          Framer
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<GoogleDriveIcon size={16} />}
+          onClick={() => setEmbed("gdrive")}
+        >
+          Google Drive
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<GoogleSheetsIcon size={16} />}
+          onClick={() => setEmbed("gsheets")}
+        >
+          Google Sheets
+        </Menu.Item>
+
+        <Menu.Divider />
+        <Menu.Label>{t("Utility")}</Menu.Label>
+        <Menu.Item
+          leftSection={<IconCalendar size={16} />}
+          onClick={insertDate}
+        >
+          {t("Date")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconMathFunction size={16} />}
+          onClick={() => editor.chain().focus().setMathInline().run()}
+        >
+          {t("Math inline")}
+        </Menu.Item>
+        <Menu.Item
+          leftSection={<IconMath size={16} />}
+          onClick={() => editor.chain().focus().setMathBlock().run()}
+        >
+          {t("Math block")}
+        </Menu.Item>
+      </Menu.Dropdown>
+    </Menu>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/groups/quick-inserts-group.tsx

@@ -0,0 +1,117 @@
+import { FC } from "react";
+import type { Editor } from "@tiptap/react";
+import { ActionIcon, Menu, Tooltip } from "@mantine/core";
+import {
+  IconAt,
+  IconColumns2,
+  IconColumns3,
+  IconMoodSmile,
+  IconTable,
+} from "@tabler/icons-react";
+import { IconColumns4 } from "@/components/icons/icon-columns-4";
+import { IconColumns5 } from "@/components/icons/icon-columns-5";
+import { useTranslation } from "react-i18next";
+
+interface Props {
+  editor: Editor;
+}
+
+export const QuickInsertsGroup: FC<Props> = ({ editor }) => {
+  const { t } = useTranslation();
+
+  return (
+    <ActionIcon.Group>
+      <Tooltip label={t("Mention")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Mention")}
+          onClick={() => editor.chain().focus().insertContent("@").run()}
+        >
+          <IconAt size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Tooltip label={t("Emoji")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Emoji")}
+          onClick={() => editor.chain().focus().insertContent(":").run()}
+        >
+          <IconMoodSmile size={16} />
+        </ActionIcon>
+      </Tooltip>
+      <Menu shadow="md" position="bottom-start" withArrow={false}>
+        <Menu.Target>
+          <Tooltip label={t("Columns")} withArrow>
+            <ActionIcon
+              variant="subtle"
+              color="dark"
+              size="md"
+              aria-label={t("Columns")}
+            >
+              <IconColumns2 size={16} />
+            </ActionIcon>
+          </Tooltip>
+        </Menu.Target>
+        <Menu.Dropdown>
+          <Menu.Item
+            leftSection={<IconColumns2 size={16} />}
+            onClick={() =>
+              editor.chain().focus().insertColumns({ layout: "two_equal" }).run()
+            }
+          >
+            {t("{{count}} Columns", { count: 2 })}
+          </Menu.Item>
+          <Menu.Item
+            leftSection={<IconColumns3 size={16} />}
+            onClick={() =>
+              editor
+                .chain()
+                .focus()
+                .insertColumns({ layout: "three_equal" })
+                .run()
+            }
+          >
+            {t("{{count}} Columns", { count: 3 })}
+          </Menu.Item>
+          <Menu.Item
+            leftSection={<IconColumns4 size={16} />}
+            onClick={() =>
+              editor.chain().focus().insertColumns({ layout: "four_equal" }).run()
+            }
+          >
+            {t("{{count}} Columns", { count: 4 })}
+          </Menu.Item>
+          <Menu.Item
+            leftSection={<IconColumns5 size={16} />}
+            onClick={() =>
+              editor.chain().focus().insertColumns({ layout: "five_equal" }).run()
+            }
+          >
+            {t("{{count}} Columns", { count: 5 })}
+          </Menu.Item>
+        </Menu.Dropdown>
+      </Menu>
+      <Tooltip label={t("Table")} withArrow>
+        <ActionIcon
+          variant="subtle"
+          color="dark"
+          size="md"
+          aria-label={t("Table")}
+          onClick={() =>
+            editor
+              .chain()
+              .focus()
+              .insertTable({ rows: 3, cols: 3, withHeaderRow: true })
+              .run()
+          }
+        >
+          <IconTable size={16} />
+        </ActionIcon>
+      </Tooltip>
+    </ActionIcon.Group>
+  );
+};

apps/client/src/features/editor/components/fixed-toolbar/use-toolbar-state.ts

@@ -0,0 +1,50 @@
+import type { Editor } from "@tiptap/react";
+import { useEditorState } from "@tiptap/react";
+
+export interface ToolbarState {
+  isBold: boolean;
+  isItalic: boolean;
+  isUnderline: boolean;
+  isStrike: boolean;
+  isCode: boolean;
+  isSubscript: boolean;
+  isSuperscript: boolean;
+  isBulletList: boolean;
+  isOrderedList: boolean;
+  isTaskList: boolean;
+  canUndo: boolean;
+  canRedo: boolean;
+}
+
+// Undo/redo come from either StarterKit's history or the Yjs collaboration
+// history extension. During the brief moment a page is rendered with the
+// static editor (mainExtensions only, undoRedo disabled), neither is loaded
+// and editor.can().undo/redo is undefined.
+function safeCan(editor: Editor, command: "undo" | "redo"): boolean {
+  const can = editor.can() as Record<string, unknown>;
+  const fn = can[command];
+  return typeof fn === "function" ? (fn as () => boolean)() : false;
+}
+
+export function useToolbarState(editor: Editor | null): ToolbarState | null {
+  return useEditorState({
+    editor,
+    selector: (ctx) => {
+      if (!ctx.editor) return null;
+      return {
+        isBold: ctx.editor.isActive("bold"),
+        isItalic: ctx.editor.isActive("italic"),
+        isUnderline: ctx.editor.isActive("underline"),
+        isStrike: ctx.editor.isActive("strike"),
+        isCode: ctx.editor.isActive("code"),
+        isSubscript: ctx.editor.isActive("subscript"),
+        isSuperscript: ctx.editor.isActive("superscript"),
+        isBulletList: ctx.editor.isActive("bulletList"),
+        isOrderedList: ctx.editor.isActive("orderedList"),
+        isTaskList: ctx.editor.isActive("taskList"),
+        canUndo: safeCan(ctx.editor, "undo"),
+        canRedo: safeCan(ctx.editor, "redo"),
+      };
+    },
+  });
+}

apps/client/src/features/editor/components/slash-menu/menu-items.ts

@@ -25,6 +25,8 @@ import {
   IconColumns3,
   IconColumns2,
   IconTag,
+  IconMoodSmile,
+  IconRotate2,
 } from "@tabler/icons-react";
 import {
   CommandProps,
@@ -132,7 +134,7 @@ const CommandGroups: SlashMenuGroupedItemsType = {
     {
       title: "Numbered list",
       description: "Create a list with numbering.",
-      searchTerms: ["numbered", "ordered", "list"],
+      searchTerms: ["numbered", "ordered", "list", "ol"],
       icon: IconListNumbers,
       command: ({ editor, range }: CommandProps) => {
         editor.chain().focus().deleteRange(range).toggleOrderedList().run();
@@ -231,7 +233,15 @@ const CommandGroups: SlashMenuGroupedItemsType = {
     {
       title: "Audio",
       description: "Upload any audio from your device.",
-      searchTerms: ["audio", "music", "sound", "mp3", "media", "file", "attachment"],
+      searchTerms: [
+        "audio",
+        "music",
+        "sound",
+        "mp3",
+        "media",
+        "file",
+        "attachment",
+      ],
       icon: IconMusic,
       command: ({ editor, range }) => {
         editor.chain().focus().deleteRange(range).run();
@@ -468,15 +478,53 @@ const CommandGroups: SlashMenuGroupedItemsType = {
           .run();
       },
     },
+    {
+      title: "Emoji",
+      description: "Insert emoji.",
+      searchTerms: ["emoji", "icon", "smiley", "emoticon", "symbol", "reaction"],
+      icon: IconMoodSmile,
+      command: ({ editor, range }: CommandProps) => {
+        editor.chain().focus().deleteRange(range).insertContent(":").run();
+      },
+    },
     {
       title: "Subpages (Child pages)",
       description: "List all subpages of the current page",
-      searchTerms: ["subpages", "child", "children", "nested", "hierarchy"],
+      searchTerms: [
+        "subpages",
+        "child",
+        "children",
+        "nested",
+        "hierarchy",
+        "toc",
+      ],
       icon: IconSitemap,
       command: ({ editor, range }: CommandProps) => {
         editor.chain().focus().deleteRange(range).insertSubpages().run();
       },
     },
+    {
+      title: "Synced block",
+      description: "Create a block that stays in sync across pages.",
+      searchTerms: [
+        "sync",
+        "synced",
+        "synced block",
+        "excerpt",
+        "transclusion",
+        "reusable",
+        "snippet",
+      ],
+      icon: IconRotate2,
+      command: ({ editor, range }: CommandProps) => {
+        editor
+          .chain()
+          .focus()
+          .deleteRange(range)
+          .insertTransclusionSource()
+          .run();
+      },
+    },
     {
       title: "2 Columns",
       description: "Split content into two columns.",

apps/client/src/features/editor/components/table-of-contents/table-of-contents.tsx

@@ -25,7 +25,7 @@ const recalculateLinks = (nodePos: NodePos[]) => {
     (acc, item) => {
       const label = item.node.textContent;
       const level = Number(item.node.attrs.level);
-      if (label.length && level <= 3) {
+      if (label.length && level <= 4) {
         acc.push({
           label,
           level,

apps/client/src/features/editor/components/transclusion/error-placeholder.tsx

@@ -0,0 +1,17 @@
+import { IconAlertTriangle } from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+import classes from "./transclusion.module.css";
+
+export default function ErrorPlaceholder() {
+  const { t } = useTranslation();
+  return (
+    <div className={classes.placeholder}>
+      <IconAlertTriangle
+        size={18}
+        stroke={1.6}
+        className={classes.placeholderIcon}
+      />
+      <span>{t("Failed to load this synced block")}</span>
+    </div>
+  );
+}

apps/client/src/features/editor/components/transclusion/no-access-placeholder.tsx

@@ -0,0 +1,13 @@
+import { IconEyeOff } from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+import classes from "./transclusion.module.css";
+
+export default function NoAccessPlaceholder() {
+  const { t } = useTranslation();
+  return (
+    <div className={classes.placeholder}>
+      <IconEyeOff size={18} stroke={1.6} className={classes.placeholderIcon} />
+      <span>{t("You don't have access to this synced block")}</span>
+    </div>
+  );
+}

apps/client/src/features/editor/components/transclusion/not-found-placeholder.tsx

@@ -0,0 +1,17 @@
+import { IconInfoCircle } from "@tabler/icons-react";
+import { useTranslation } from "react-i18next";
+import classes from "./transclusion.module.css";
+
+export default function NotFoundPlaceholder() {
+  const { t } = useTranslation();
+  return (
+    <div className={classes.placeholder}>
+      <IconInfoCircle
+        size={18}
+        stroke={1.6}
+        className={classes.placeholderIcon}
+      />
+      <span>{t("The original synced block no longer exists")}</span>
+    </div>
+  );
+}

apps/client/src/features/editor/components/transclusion/transclusion-content.tsx

@@ -0,0 +1,48 @@
+import { EditorProvider } from "@tiptap/react";
+import { useMemo } from "react";
+import { mainExtensions } from "@/features/editor/extensions/extensions";
+import { UniqueID } from "@docmost/editor-ext";
+
+type Props = {
+  content: unknown;
+};
+
+export default function TransclusionContent({ content }: Props) {
+  const extensions = useMemo(() => {
+    const filtered = mainExtensions.filter(
+      (e: any) => e.name !== "uniqueID" && e.name !== "globalDragHandle",
+    );
+    return [
+      ...filtered,
+      UniqueID.configure({
+        types: ["heading", "paragraph", "transclusionSource"],
+        updateDocument: false,
+      }),
+    ];
+  }, []);
+
+  // Isolate the nested read-only editor's events from the host editor:
+  // - mousedown/click would otherwise make the host node-select the atom
+  //   wrapper, blocking native text selection inside.
+  // - dragstart/dragover/drop would otherwise let the host treat events
+  //   inside the nested view as drops on the host, duplicating dropped
+  //   files at the transclusion's position.
+  const stop = (e: React.SyntheticEvent) => e.stopPropagation();
+
+  return (
+    <div
+      onMouseDown={stop}
+      onClick={stop}
+      onDragStart={stop}
+      onDragOver={stop}
+      onDrop={stop}
+    >
+      <EditorProvider
+        editable={false}
+        immediatelyRender={true}
+        extensions={extensions}
+        content={content as any}
+      />
+    </div>
+  );
+}

apps/client/src/features/editor/components/transclusion/transclusion-lookup-context.tsx

@@ -0,0 +1,213 @@
+import React, {
+  createContext,
+  useCallback,
+  useContext,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+import {
+  lookupTransclusion,
+  lookupTransclusionForShare,
+} from "@/features/transclusion/services/transclusion-api";
+import type { TransclusionLookup } from "@/features/transclusion/types/transclusion.types";
+
+type LookupKey = string; // `${sourcePageId}::${transclusionId}`
+
+type Subscriber = {
+  key: LookupKey;
+  sourcePageId: string;
+  transclusionId: string;
+  setResult: (r: TransclusionLookup) => void;
+};
+
+type ContextValue = {
+  /** Register a subscriber. Returns an unsubscribe function. */
+  subscribe: (s: Subscriber) => () => void;
+  /**
+   * Force a re-fetch of `key` and resolve when the response arrives (or the
+   * request fails). Bypasses the cache and any in-flight de-dup so the user
+   * always sees a fresh server read.
+   */
+  refresh: (key: LookupKey) => Promise<void>;
+};
+
+const TransclusionLookupContext = createContext<ContextValue | null>(null);
+
+export function TransclusionLookupProvider({
+  children,
+  shareId,
+}: {
+  children: React.ReactNode;
+  /**
+   * When set, lookups go through the share-scoped public endpoint and are
+   * gated by the share graph (source page must have its own share or inherit
+   * one). Used by the public share viewer; left undefined in the authenticated
+   * app, where personal permissions gate access.
+   */
+  shareId?: string;
+}) {
+  const subscribersRef = useRef(new Map<LookupKey, Subscriber[]>());
+  const queueRef = useRef(new Set<LookupKey>());
+  const tickRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+  // Read inside flush() via ref so changing share context doesn't churn the
+  // memoized callbacks (and thus doesn't re-render every consumer).
+  const shareIdRef = useRef<string | undefined>(shareId);
+  shareIdRef.current = shareId;
+  // Last looked-up value for each key. Re-subscribers (e.g. when the editor
+  // remounts after switching from static to live) get this immediately
+  // instead of triggering a duplicate fetch.
+  const resultCacheRef = useRef(new Map<LookupKey, TransclusionLookup>());
+  // Keys that are currently in flight in a batch request. A second subscribe
+  // for the same key while the first request is pending is a no-op; the
+  // subscriber is added to subscribersRef and will be notified when the
+  // pending request completes.
+  const inFlightRef = useRef(new Set<LookupKey>());
+  // Resolvers waiting on the next response for a key. Populated by refresh()
+  // so callers can await the fetch round-trip; resolved on success and on
+  // network error so the UI never hangs in a loading state.
+  const pendingRef = useRef(new Map<LookupKey, Array<() => void>>());
+
+  const flush = useCallback(async () => {
+    tickRef.current = null;
+    const keys = Array.from(queueRef.current);
+    queueRef.current.clear();
+    if (keys.length === 0) return;
+
+    for (const k of keys) inFlightRef.current.add(k);
+
+    const references = keys.map((k) => {
+      const [sourcePageId, transclusionId] = k.split("::");
+      return { sourcePageId, transclusionId };
+    });
+
+    const resolveWaiters = (key: LookupKey) => {
+      const waiters = pendingRef.current.get(key);
+      if (!waiters) return;
+      pendingRef.current.delete(key);
+      for (const w of waiters) w();
+    };
+
+    try {
+      const activeShareId = shareIdRef.current;
+      const { items } = activeShareId
+        ? await lookupTransclusionForShare({
+            shareId: activeShareId,
+            references,
+          })
+        : await lookupTransclusion({ references });
+      for (const r of items) {
+        const key = `${r.sourcePageId}::${r.transclusionId}`;
+        resultCacheRef.current.set(key, r);
+        inFlightRef.current.delete(key);
+        const subs = subscribersRef.current.get(key);
+        if (subs) {
+          for (const s of subs) s.setResult(r);
+        }
+        resolveWaiters(key);
+      }
+    } catch {
+      // Network error — leave subscribers in pending state and clear the
+      // in-flight flag so a future subscribe can retry.
+      for (const k of keys) {
+        inFlightRef.current.delete(k);
+        resolveWaiters(k);
+      }
+    }
+  }, []);
+
+  const enqueue = useCallback(
+    (key: LookupKey) => {
+      queueRef.current.add(key);
+      if (tickRef.current === null) {
+        tickRef.current = setTimeout(flush, 10);
+      }
+    },
+    [flush],
+  );
+
+  const subscribe = useCallback<ContextValue["subscribe"]>(
+    (s) => {
+      const list = subscribersRef.current.get(s.key) ?? [];
+      list.push(s);
+      subscribersRef.current.set(s.key, list);
+
+      const cached = resultCacheRef.current.get(s.key);
+      if (cached) {
+        s.setResult(cached);
+      } else if (!inFlightRef.current.has(s.key)) {
+        enqueue(s.key);
+      }
+
+      return () => {
+        const cur = subscribersRef.current.get(s.key) ?? [];
+        const next = cur.filter((x) => x !== s);
+        if (next.length === 0) subscribersRef.current.delete(s.key);
+        else subscribersRef.current.set(s.key, next);
+      };
+    },
+    [enqueue],
+  );
+
+  const refresh = useCallback<ContextValue["refresh"]>(
+    (key) =>
+      new Promise<void>((resolve) => {
+        resultCacheRef.current.delete(key);
+        inFlightRef.current.delete(key);
+        const waiters = pendingRef.current.get(key) ?? [];
+        waiters.push(resolve);
+        pendingRef.current.set(key, waiters);
+        enqueue(key);
+      }),
+    [enqueue],
+  );
+
+  useEffect(
+    () => () => {
+      if (tickRef.current) clearTimeout(tickRef.current);
+    },
+    [],
+  );
+
+  const value = useMemo<ContextValue>(
+    () => ({ subscribe, refresh }),
+    [subscribe, refresh],
+  );
+
+  return (
+    <TransclusionLookupContext.Provider value={value}>
+      {children}
+    </TransclusionLookupContext.Provider>
+  );
+}
+
+export function useTransclusionLookup(
+  sourcePageId: string | null | undefined,
+  transclusionId: string | null | undefined,
+): {
+  result: TransclusionLookup | null;
+  refresh: () => Promise<void>;
+} {
+  const ctx = useContext(TransclusionLookupContext);
+  const [result, setResult] = useState<TransclusionLookup | null>(null);
+
+  useEffect(() => {
+    if (!ctx || !sourcePageId || !transclusionId) return;
+    const key = `${sourcePageId}::${transclusionId}`;
+    const unsubscribe = ctx.subscribe({
+      key,
+      sourcePageId,
+      transclusionId,
+      setResult,
+    });
+    return unsubscribe;
+  }, [ctx, sourcePageId, transclusionId]);
+
+  const refresh = useCallback(async () => {
+    if (!ctx || !sourcePageId || !transclusionId) return;
+    await ctx.refresh(`${sourcePageId}::${transclusionId}`);
+  }, [ctx, sourcePageId, transclusionId]);
+
+  return { result, refresh };
+}

apps/client/src/features/editor/components/transclusion/transclusion-reference-view.tsx

@@ -0,0 +1,212 @@
+import { NodeViewProps, NodeViewWrapper } from "@tiptap/react";
+import { ActionIcon, Menu, Tooltip } from "@mantine/core";
+import {
+  IconDots,
+  IconLinkOff,
+  IconPencil,
+  IconRefresh,
+  IconTrash,
+} from "@tabler/icons-react";
+import { useState } from "react";
+import { Link } from "react-router-dom";
+import { useTranslation } from "react-i18next";
+import { ErrorBoundary } from "react-error-boundary";
+import { useTransclusionLookup } from "./transclusion-lookup-context";
+import TransclusionContent from "./transclusion-content";
+import NoAccessPlaceholder from "./no-access-placeholder";
+import NotFoundPlaceholder from "./not-found-placeholder";
+import ErrorPlaceholder from "./error-placeholder";
+import classes from "./transclusion.module.css";
+import SyncBlockReferencesDropdown from "@/features/transclusion/components/sync-block-references-dropdown";
+import {
+  useReferencesQuery,
+  useUnsyncReferenceMutation,
+} from "@/features/transclusion/queries/transclusion-query";
+import { buildPageUrl } from "@/features/page/page.utils";
+
+export default function TransclusionReferenceView(props: NodeViewProps) {
+  const isEditable = props.editor.isEditable;
+  const sourcePageId: string | null = props.node.attrs.sourcePageId ?? null;
+  const transclusionId: string | null = props.node.attrs.transclusionId ?? null;
+  const [openMenus, setOpenMenus] = useState(0);
+  const trackOpen = (open: boolean) =>
+    setOpenMenus((n) => Math.max(0, n + (open ? 1 : -1)));
+
+  return (
+    <NodeViewWrapper
+      className={classes.includeWrap}
+      data-focused={isEditable && props.selected ? "true" : "false"}
+      data-menu-open={openMenus > 0 ? "true" : "false"}
+      contentEditable={false}
+    >
+      <ErrorBoundary
+        resetKeys={[sourcePageId, transclusionId]}
+        fallback={<ErrorPlaceholder />}
+      >
+        <TransclusionReferenceBody {...props} trackOpen={trackOpen} />
+      </ErrorBoundary>
+    </NodeViewWrapper>
+  );
+}
+
+function TransclusionReferenceBody({
+  editor,
+  node,
+  deleteNode,
+  getPos,
+  trackOpen,
+}: NodeViewProps & { trackOpen: (open: boolean) => void }) {
+  const { t } = useTranslation();
+  const sourcePageId: string | null = node.attrs.sourcePageId ?? null;
+  const transclusionId: string | null = node.attrs.transclusionId ?? null;
+  const isEditable = editor.isEditable;
+
+  const { result, refresh } = useTransclusionLookup(
+    sourcePageId,
+    transclusionId,
+  );
+  const [refreshing, setRefreshing] = useState(false);
+  const handleRefresh = async () => {
+    setRefreshing(true);
+    try {
+      await refresh();
+    } finally {
+      setRefreshing(false);
+    }
+  };
+  // @ts-ignore - editor.storage.pageId is set by the host editor
+  const hostPageId: string | undefined = editor.storage?.pageId;
+  const unsyncMutation = useUnsyncReferenceMutation();
+  // Cached against the dropdown's identical query so the source link target
+  // is ready as soon as the controls fade in on hover, without a second
+  // fetch.
+  const referencesQuery = useReferencesQuery(
+    sourcePageId,
+    transclusionId,
+    isEditable,
+  );
+  const sourcePageHref = (() => {
+    const source = referencesQuery.data?.source;
+    const base = source?.spaceSlug
+      ? buildPageUrl(source.spaceSlug, source.slugId, source.title)
+      : sourcePageId
+        ? `/p/${sourcePageId}`
+        : null;
+    if (!base) return null;
+    return transclusionId ? `${base}#${transclusionId}` : base;
+  })();
+
+  const handleUnsync = async () => {
+    if (!hostPageId || !sourcePageId || !transclusionId) return;
+    try {
+      const { content } = await unsyncMutation.mutateAsync({
+        referencePageId: hostPageId,
+        sourcePageId,
+        transclusionId,
+      });
+      const pos = getPos();
+      if (typeof pos !== "number") return;
+      const from = pos;
+      const to = pos + node.nodeSize;
+      editor
+        .chain()
+        .focus()
+        .insertContentAt({ from, to }, content as any)
+        .run();
+    } catch {
+      // mutation surfaces errors via React Query; node stays as-is
+    }
+  };
+
+  return (
+    <>
+      {isEditable && (
+        <div
+          className={classes.includeControls}
+          contentEditable={false}
+          onMouseDown={(e) => e.preventDefault()}
+        >
+          {sourcePageId && transclusionId && hostPageId && (
+            <SyncBlockReferencesDropdown
+              sourcePageId={sourcePageId}
+              transclusionId={transclusionId}
+              currentPageId={hostPageId}
+              mode="reference"
+              onOpenChange={trackOpen}
+            />
+          )}
+          <span className={classes.controlsDivider} />
+          <Tooltip label={t("Refresh")}>
+            <ActionIcon
+              variant="subtle"
+              color="gray"
+              size="sm"
+              onClick={handleRefresh}
+              loading={refreshing}
+              disabled={!sourcePageId || !transclusionId}
+            >
+              <IconRefresh size={14} />
+            </ActionIcon>
+          </Tooltip>
+          {sourcePageHref && (
+            <Tooltip label={t("Edit source")}>
+              <ActionIcon
+                component={Link}
+                to={sourcePageHref}
+                variant="subtle"
+                color="gray"
+                size="sm"
+                style={{
+                  textDecoration: "none",
+                  borderBottom: "none",
+                }}
+              >
+                <IconPencil size={14} />
+              </ActionIcon>
+            </Tooltip>
+          )}
+          <Menu position="bottom-end" withinPortal onChange={trackOpen}>
+            <Menu.Target>
+              <ActionIcon variant="subtle" color="gray" size="sm">
+                <IconDots size={14} />
+              </ActionIcon>
+            </Menu.Target>
+            <Menu.Dropdown>
+              <Menu.Item
+                leftSection={<IconLinkOff size={14} />}
+                onClick={handleUnsync}
+                disabled={
+                  unsyncMutation.isPending ||
+                  !hostPageId ||
+                  !sourcePageId ||
+                  !transclusionId
+                }
+              >
+                {t("Unsync")}
+              </Menu.Item>
+              <Menu.Item
+                color="red"
+                leftSection={<IconTrash size={14} />}
+                onClick={() => deleteNode()}
+              >
+                {t("Remove from page")}
+              </Menu.Item>
+            </Menu.Dropdown>
+          </Menu>
+        </div>
+      )}
+
+      {!sourcePageId || !transclusionId ? (
+        <NotFoundPlaceholder />
+      ) : !result ? (
+        <div style={{ minHeight: 24 }} />
+      ) : !("status" in result) ? (
+        <TransclusionContent content={result.content} />
+      ) : result.status === "no_access" ? (
+        <NoAccessPlaceholder />
+      ) : (
+        <NotFoundPlaceholder />
+      )}
+    </>
+  );
+}

apps/client/src/features/editor/components/transclusion/transclusion-view.tsx

@@ -0,0 +1,126 @@
+import {
+  NodeViewContent,
+  NodeViewProps,
+  NodeViewWrapper,
+} from "@tiptap/react";
+import { ActionIcon, Menu, Tooltip } from "@mantine/core";
+import { notifications } from "@mantine/notifications";
+import {
+  IconCheck,
+  IconCopy,
+  IconDots,
+  IconLinkOff,
+  IconTrash,
+} from "@tabler/icons-react";
+import { useState } from "react";
+import { useTranslation } from "react-i18next";
+import classes from "./transclusion.module.css";
+import SyncBlockReferencesDropdown from "@/features/transclusion/components/sync-block-references-dropdown";
+
+export default function TransclusionView(props: NodeViewProps) {
+  const { editor, node, deleteNode } = props;
+  const { t } = useTranslation();
+  const [openMenus, setOpenMenus] = useState(0);
+  const trackOpen = (open: boolean) =>
+    setOpenMenus((n) => Math.max(0, n + (open ? 1 : -1)));
+
+  const isEditable = editor.isEditable;
+  // @ts-ignore - editor.storage.pageId is set by the host editor (page-editor.tsx onCreate)
+  const sourcePageId: string | undefined = editor.storage?.pageId;
+  const transclusionId: string | null = node.attrs.id ?? null;
+
+  const [copied, setCopied] = useState(false);
+  const handleCopy = async () => {
+    if (!sourcePageId || !transclusionId) return;
+    const html = `<div data-type="transclusionReference" data-source-page-id="${sourcePageId}" data-transclusion-id="${transclusionId}"></div>`;
+    try {
+      await navigator.clipboard.write([
+        new ClipboardItem({
+          "text/html": new Blob([html], { type: "text/html" }),
+          "text/plain": new Blob([html], { type: "text/plain" }),
+        }),
+      ]);
+    } catch {
+      // Fallback for browsers without ClipboardItem write support
+      try {
+        await navigator.clipboard.writeText(html);
+      } catch {
+        return;
+      }
+    }
+    setCopied(true);
+    window.setTimeout(() => setCopied(false), 2000);
+    notifications.show({
+      message: t("Copied. Paste on any page to embed this synced block."),
+    });
+  };
+
+  const handleUnsync = () => {
+    editor.chain().focus().unsyncTransclusionSource().run();
+  };
+
+  return (
+    <NodeViewWrapper
+      className={classes.transclusionWrap}
+      data-menu-open={openMenus > 0 ? "true" : "false"}
+      data-id={transclusionId ?? undefined}
+    >
+      {isEditable && (
+        <div
+          className={classes.transclusionControls}
+          contentEditable={false}
+          onMouseDown={(e) => e.preventDefault()}
+        >
+          {sourcePageId && transclusionId && (
+            <SyncBlockReferencesDropdown
+              sourcePageId={sourcePageId}
+              transclusionId={transclusionId}
+              currentPageId={sourcePageId}
+              mode="source"
+              onOpenChange={trackOpen}
+            />
+          )}
+
+          <span className={classes.controlsDivider} />
+
+          <Tooltip label={copied ? t("Copied") : t("Copy synced block")}>
+            <ActionIcon
+              variant="subtle"
+              color={copied ? "teal" : "gray"}
+              size="sm"
+              onClick={handleCopy}
+              disabled={!sourcePageId || !transclusionId}
+            >
+              {copied ? <IconCheck size={14} /> : <IconCopy size={14} />}
+            </ActionIcon>
+          </Tooltip>
+
+          <Menu position="bottom-end" withinPortal onChange={trackOpen}>
+            <Menu.Target>
+              <ActionIcon variant="subtle" color="gray" size="sm">
+                <IconDots size={14} />
+              </ActionIcon>
+            </Menu.Target>
+            <Menu.Dropdown>
+              <Menu.Item
+                leftSection={<IconLinkOff size={14} />}
+                onClick={handleUnsync}
+              >
+                {t("Unsync")}
+              </Menu.Item>
+              <Menu.Item
+                color="red"
+                leftSection={<IconTrash size={14} />}
+                onClick={() => deleteNode()}
+              >
+                {t("Delete synced block")}
+              </Menu.Item>
+            </Menu.Dropdown>
+          </Menu>
+        </div>
+      )}
+
+      <NodeViewContent />
+    </NodeViewWrapper>
+  );
+}

apps/client/src/features/editor/components/transclusion/transclusion.module.css

@@ -0,0 +1,209 @@
+.placeholder {
+  display: flex;
+  flex-direction: row;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 12px;
+  border-radius: var(--mantine-radius-md);
+  background: light-dark(
+    var(--mantine-color-gray-0),
+    var(--mantine-color-dark-6)
+  );
+  color: light-dark(var(--mantine-color-gray-7), var(--mantine-color-dark-1));
+  font-size: var(--mantine-font-size-sm);
+  user-select: none;
+}
+
+.placeholderIcon {
+  flex: none;
+  color: light-dark(var(--mantine-color-gray-6), var(--mantine-color-dark-2));
+}
+
+.transclusionBadge {
+  display: inline-block;
+  padding: 2px 8px;
+  font-size: var(--mantine-font-size-xs);
+  font-weight: 600;
+  color: light-dark(var(--mantine-color-gray-7), var(--mantine-color-dark-1));
+  background: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-dark-5)
+  );
+  border-radius: var(--mantine-radius-sm);
+  margin-bottom: 4px;
+}
+
+.transclusionWrap {
+  position: relative;
+  margin-left: -3rem;
+  margin-right: -3rem;
+  width: calc(100% + 6rem);
+  padding: 0.5em 3rem;
+  border-radius: 8px;
+  border: 2px solid transparent;
+  transition: border 0.3s;
+}
+
+.transclusionWrap:hover,
+.transclusionWrap:focus-within {
+  border: 2px solid
+    light-dark(
+      var(--mantine-color-orange-2),
+      color-mix(in srgb, var(--mantine-color-orange-9), transparent 55%)
+    );
+}
+
+.transclusionControls {
+  position: absolute;
+  bottom: calc(100% + 8px);
+  right: 4px;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  background: var(--mantine-color-body);
+  border: 1px solid var(--mantine-color-default-border);
+  border-radius: 6px;
+  padding: 4px 6px;
+  opacity: 0;
+  pointer-events: none;
+  transition: opacity 0.15s ease;
+  z-index: 2;
+}
+
+/* Hover bridge: keeps :hover on the wrap while the cursor crosses the
+   8px gap between wrap and floating chrome, so the menu doesn't fade out
+   on the way to it. */
+.transclusionControls::after {
+  content: "";
+  position: absolute;
+  top: 100%;
+  left: 0;
+  right: 0;
+  height: 8px;
+}
+
+.transclusionWrap:hover .transclusionControls,
+.transclusionWrap:focus-within .transclusionControls,
+.transclusionWrap[data-menu-open="true"] .transclusionControls {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.controlsDivider {
+  display: inline-block;
+  width: 1px;
+  height: 16px;
+  background: var(--mantine-color-default-border);
+}
+
+.transclusionControls a[href],
+.includeControls a[href] {
+  color: var(--ai-color);
+  border-bottom: none;
+  font-weight: inherit;
+}
+
+.includeWrap {
+  position: relative;
+  margin-left: -3rem;
+  margin-right: -3rem;
+  width: calc(100% + 6rem);
+  padding: 0.5em 0;
+  border-radius: 8px;
+  border: 2px solid transparent;
+  transition: border 0.3s;
+}
+
+.includeWrap:hover,
+.includeWrap[data-focused="true"],
+.includeWrap[data-menu-open="true"] {
+  border: 2px solid
+    light-dark(
+      var(--mantine-color-orange-2),
+      color-mix(in srgb, var(--mantine-color-orange-9), transparent 55%)
+    );
+}
+
+.includeControls {
+  position: absolute;
+  bottom: calc(100% + 8px);
+  right: 4px;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  background: var(--mantine-color-body);
+  border: 1px solid var(--mantine-color-default-border);
+  border-radius: 6px;
+  padding: 4px 6px;
+  opacity: 0;
+  pointer-events: none;
+  transition: opacity 0.15s ease;
+  z-index: 2;
+}
+
+/* Hover bridge: keeps :hover on the wrap while the cursor crosses the
+   8px gap between wrap and floating chrome, so the menu doesn't fade out
+   on the way to it. */
+.includeControls::after {
+  content: "";
+  position: absolute;
+  top: 100%;
+  left: 0;
+  right: 0;
+  height: 8px;
+}
+
+.includeWrap:hover .includeControls,
+.includeWrap:focus-within .includeControls,
+.includeWrap[data-focused="true"] .includeControls,
+.includeWrap[data-menu-open="true"] .includeControls {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+:global(.react-renderer.node-transclusionSource.ProseMirror-selectednode),
+:global(.react-renderer.node-transclusionReference.ProseMirror-selectednode) {
+  outline: none;
+}
+
+@media (max-width: 48em) {
+  .transclusionWrap,
+  .includeWrap {
+    margin-left: -1rem;
+    margin-right: -1rem;
+    width: calc(100% + 2rem);
+  }
+
+  .transclusionWrap {
+    padding-left: 1rem;
+    padding-right: 1rem;
+  }
+}
+
+@media print {
+  .transclusionControls,
+  .includeControls {
+    display: none !important;
+  }
+  .transclusionWrap,
+  .includeWrap {
+    border: none !important;
+    margin-left: 0 !important;
+    margin-right: 0 !important;
+    width: 100% !important;
+    padding: 0 !important;
+  }
+}
+
+.editingOriginalTag {
+  display: inline-block;
+  padding: 0 6px;
+  font-size: var(--mantine-font-size-xs);
+  font-weight: 500;
+  color: var(--mantine-color-blue-7);
+  background: light-dark(
+    var(--mantine-color-blue-0),
+    var(--mantine-color-blue-9)
+  );
+  border-radius: var(--mantine-radius-sm);
+}

apps/client/src/features/editor/extensions/drag-handle.ts

@@ -0,0 +1,419 @@
+import { Extension } from "@tiptap/core";
+import {
+  NodeSelection,
+  Plugin,
+  PluginKey,
+  TextSelection,
+} from "@tiptap/pm/state";
+import { Fragment, Slice, Node } from "@tiptap/pm/model";
+import { EditorView } from "@tiptap/pm/view";
+
+export interface GlobalDragHandleOptions {
+  /**
+   * The width of the drag handle
+   */
+  dragHandleWidth: number;
+
+  /**
+   * The treshold for scrolling
+   */
+  scrollThreshold: number;
+
+  /*
+   * The css selector to query for the drag handle. (eg: '.custom-handle').
+   * If handle element is found, that element will be used as drag handle. If not, a default handle will be created
+   */
+  dragHandleSelector?: string;
+
+  /**
+   * Tags to be excluded for drag handle
+   */
+  excludedTags: string[];
+
+  /**
+   * Custom nodes to be included for drag handle
+   */
+  customNodes: string[];
+}
+function absoluteRect(node: Element) {
+  const data = node.getBoundingClientRect();
+  const modal = node.closest('[role="dialog"]');
+
+  if (modal && window.getComputedStyle(modal).transform !== "none") {
+    const modalRect = modal.getBoundingClientRect();
+
+    return {
+      top: data.top - modalRect.top,
+      left: data.left - modalRect.left,
+      width: data.width,
+    };
+  }
+  return {
+    top: data.top,
+    left: data.left,
+    width: data.width,
+  };
+}
+
+function nodeDOMAtCoords(
+  coords: { x: number; y: number },
+  options: GlobalDragHandleOptions,
+  view: EditorView,
+) {
+  const selectors = [
+    "li",
+    "p:not(:first-child)",
+    "pre",
+    "blockquote",
+    "h1",
+    "h2",
+    "h3",
+    "h4",
+    "h5",
+    "h6",
+    ...options.customNodes.map((node) => `[data-type=${node}]`),
+  ].join(", ");
+  return document
+    .elementsFromPoint(coords.x, coords.y)
+    .find((elem: Element) => {
+      // Skip elements that belong to a nested editor (e.g. transclusion
+      // references render their own ProseMirror instance). Only consider
+      // elements whose closest editor is this host view.
+      if (elem.closest(".ProseMirror") !== view.dom) return false;
+      return (
+        elem.parentElement?.matches?.(".ProseMirror") ||
+        elem.matches(selectors)
+      );
+    });
+}
+function nodePosAtDOM(
+  node: Element,
+  view: EditorView,
+  options: GlobalDragHandleOptions,
+) {
+  const boundingRect = node.getBoundingClientRect();
+
+  return view.posAtCoords({
+    left: boundingRect.left + 50 + options.dragHandleWidth,
+    top: boundingRect.top + 1,
+  })?.inside;
+}
+
+function calcNodePos(pos: number, view: EditorView) {
+  const $pos = view.state.doc.resolve(pos);
+  if ($pos.depth > 1) return $pos.before($pos.depth);
+  return pos;
+}
+
+export function DragHandlePlugin(
+  options: GlobalDragHandleOptions & { pluginKey: string },
+) {
+  let listType = "";
+  function handleDragStart(event: DragEvent, view: EditorView) {
+    view.focus();
+
+    if (!event.dataTransfer) return;
+
+    const node = nodeDOMAtCoords(
+      {
+        x: event.clientX + 50 + options.dragHandleWidth,
+        y: event.clientY,
+      },
+      options,
+      view,
+    );
+
+    if (!(node instanceof Element)) return;
+
+    let draggedNodePos = nodePosAtDOM(node, view, options);
+    if (draggedNodePos == null || draggedNodePos < 0) return;
+    draggedNodePos = calcNodePos(draggedNodePos, view);
+
+    const { from, to } = view.state.selection;
+    const diff = from - to;
+
+    const fromSelectionPos = calcNodePos(from, view);
+    let differentNodeSelected = false;
+
+    const nodePos = view.state.doc.resolve(fromSelectionPos);
+
+    // Check if nodePos points to the top level node
+    if (nodePos.node().type.name === "doc") differentNodeSelected = true;
+    else {
+      const nodeSelection = NodeSelection.create(
+        view.state.doc,
+        nodePos.before(),
+      );
+
+      // Check if the node where the drag event started is part of the current selection
+      differentNodeSelected = !(
+        draggedNodePos + 1 >= nodeSelection.$from.pos &&
+        draggedNodePos <= nodeSelection.$to.pos
+      );
+    }
+    let selection = view.state.selection;
+    if (
+      !differentNodeSelected &&
+      diff !== 0 &&
+      !(view.state.selection instanceof NodeSelection)
+    ) {
+      const endSelection = NodeSelection.create(view.state.doc, to - 1);
+      selection = TextSelection.create(
+        view.state.doc,
+        draggedNodePos,
+        endSelection.$to.pos,
+      );
+    } else {
+      selection = NodeSelection.create(view.state.doc, draggedNodePos);
+
+      // if inline node is selected, e.g mention -> go to the parent node to select the whole node
+      // if table row is selected, go to the parent node to select the whole node
+      if (
+        (selection as NodeSelection).node.type.isInline ||
+        (selection as NodeSelection).node.type.name === "tableRow"
+      ) {
+        let $pos = view.state.doc.resolve(selection.from);
+        selection = NodeSelection.create(view.state.doc, $pos.before());
+      }
+    }
+    view.dispatch(view.state.tr.setSelection(selection));
+
+    // If the selected node is a list item, we need to save the type of the wrapping list e.g. OL or UL
+    if (
+      view.state.selection instanceof NodeSelection &&
+      view.state.selection.node.type.name === "listItem"
+    ) {
+      listType = node.parentElement!.tagName;
+    }
+
+    const slice = view.state.selection.content();
+    const { dom, text } = view.serializeForClipboard(slice);
+
+    event.dataTransfer.clearData();
+    event.dataTransfer.setData("text/html", dom.innerHTML);
+    event.dataTransfer.setData("text/plain", text);
+    event.dataTransfer.effectAllowed = "move";
+
+    event.dataTransfer.setDragImage(node, 0, 0);
+
+    view.dragging = { slice, move: event.ctrlKey };
+  }
+
+  let dragHandleElement: HTMLElement | null = null;
+
+  function hideDragHandle() {
+    if (dragHandleElement) {
+      dragHandleElement.classList.add("hide");
+    }
+  }
+
+  function showDragHandle() {
+    if (dragHandleElement) {
+      dragHandleElement.classList.remove("hide");
+    }
+  }
+
+  function hideHandleOnEditorOut(event: MouseEvent) {
+    if (event.target instanceof Element) {
+      // Check if the relatedTarget class is still inside the editor
+      const relatedTarget = event.relatedTarget as HTMLElement;
+      const isInsideEditor =
+        relatedTarget?.classList.contains("tiptap") ||
+        relatedTarget?.classList.contains("drag-handle");
+
+      if (isInsideEditor) return;
+    }
+    hideDragHandle();
+  }
+
+  return new Plugin({
+    key: new PluginKey(options.pluginKey),
+    view: (view) => {
+      const handleBySelector = options.dragHandleSelector
+        ? document.querySelector<HTMLElement>(options.dragHandleSelector)
+        : null;
+      dragHandleElement = handleBySelector ?? document.createElement("div");
+      dragHandleElement.draggable = true;
+      dragHandleElement.dataset.dragHandle = "";
+      dragHandleElement.classList.add("drag-handle");
+
+      function onDragHandleDragStart(e: DragEvent) {
+        handleDragStart(e, view);
+      }
+
+      dragHandleElement.addEventListener("dragstart", onDragHandleDragStart);
+
+      function onDragHandleDrag(e: DragEvent) {
+        hideDragHandle();
+        let scrollY = window.scrollY;
+        if (e.clientY < options.scrollThreshold) {
+          window.scrollTo({ top: scrollY - 30, behavior: "smooth" });
+        } else if (window.innerHeight - e.clientY < options.scrollThreshold) {
+          window.scrollTo({ top: scrollY + 30, behavior: "smooth" });
+        }
+      }
+
+      dragHandleElement.addEventListener("drag", onDragHandleDrag);
+
+      hideDragHandle();
+
+      if (!handleBySelector) {
+        view?.dom?.parentElement?.appendChild(dragHandleElement);
+      }
+      view?.dom?.parentElement?.addEventListener(
+        "mouseout",
+        hideHandleOnEditorOut,
+      );
+
+      return {
+        destroy: () => {
+          if (!handleBySelector) {
+            dragHandleElement?.remove?.();
+          }
+          dragHandleElement?.removeEventListener("drag", onDragHandleDrag);
+          dragHandleElement?.removeEventListener(
+            "dragstart",
+            onDragHandleDragStart,
+          );
+          dragHandleElement = null;
+          view?.dom?.parentElement?.removeEventListener(
+            "mouseout",
+            hideHandleOnEditorOut,
+          );
+        },
+      };
+    },
+    props: {
+      handleDOMEvents: {
+        mousemove: (view, event) => {
+          if (!view.editable) {
+            return;
+          }
+
+          const node = nodeDOMAtCoords(
+            {
+              x: event.clientX + 50 + options.dragHandleWidth,
+              y: event.clientY,
+            },
+            options,
+            view,
+          );
+
+          const notDragging = node?.closest(".not-draggable");
+          const excludedTagList = options.excludedTags
+            .concat(["ol", "ul"])
+            .join(", ");
+
+          if (
+            !(node instanceof Element) ||
+            node.matches(excludedTagList) ||
+            notDragging
+          ) {
+            hideDragHandle();
+            return;
+          }
+
+          const compStyle = window.getComputedStyle(node);
+          const parsedLineHeight = parseInt(compStyle.lineHeight, 10);
+          const lineHeight = isNaN(parsedLineHeight)
+            ? parseInt(compStyle.fontSize) * 1.2
+            : parsedLineHeight;
+          const paddingTop = parseInt(compStyle.paddingTop, 10);
+
+          const rect = absoluteRect(node);
+
+          rect.top += (lineHeight - 24) / 2;
+          rect.top += paddingTop;
+          // Li markers
+          if (node.matches("ul:not([data-type=taskList]) li, ol li")) {
+            rect.left -= options.dragHandleWidth;
+          }
+          rect.width = options.dragHandleWidth;
+
+          if (!dragHandleElement) return;
+
+          dragHandleElement.style.left = `${rect.left - rect.width}px`;
+          dragHandleElement.style.top = `${rect.top}px`;
+          showDragHandle();
+        },
+        keydown: () => {
+          hideDragHandle();
+        },
+        mousewheel: () => {
+          hideDragHandle();
+        },
+        // dragging class is used for CSS
+        dragstart: (view) => {
+          view.dom.classList.add("dragging");
+        },
+        drop: (view, event) => {
+          view.dom.classList.remove("dragging");
+          hideDragHandle();
+          let droppedNode: Node | null = null;
+          const dropPos = view.posAtCoords({
+            left: event.clientX,
+            top: event.clientY,
+          });
+
+          if (!dropPos) return;
+
+          if (view.state.selection instanceof NodeSelection) {
+            droppedNode = view.state.selection.node;
+          }
+          if (!droppedNode) return;
+
+          const resolvedPos = view.state.doc.resolve(dropPos.pos);
+
+          const isDroppedInsideList =
+            resolvedPos.parent.type.name === "listItem";
+
+          // If the selected node is a list item and is not dropped inside a list, we need to wrap it inside <ol> tag otherwise ol list items will be transformed into ul list item when dropped
+          if (
+            view.state.selection instanceof NodeSelection &&
+            view.state.selection.node.type.name === "listItem" &&
+            !isDroppedInsideList &&
+            listType == "OL"
+          ) {
+            const newList = view.state.schema.nodes.orderedList?.createAndFill(
+              null,
+              droppedNode,
+            );
+            const slice = new Slice(Fragment.from(newList), 0, 0);
+            view.dragging = { slice, move: event.ctrlKey };
+          }
+        },
+        dragend: (view) => {
+          view.dom.classList.remove("dragging");
+        },
+      },
+    },
+  });
+}
+
+const GlobalDragHandle = Extension.create({
+  name: "globalDragHandle",
+
+  addOptions() {
+    return {
+      dragHandleWidth: 20,
+      scrollThreshold: 100,
+      excludedTags: [],
+      customNodes: [],
+    };
+  },
+
+  addProseMirrorPlugins() {
+    return [
+      DragHandlePlugin({
+        pluginKey: "globalDragHandle",
+        dragHandleWidth: this.options.dragHandleWidth,
+        scrollThreshold: this.options.scrollThreshold,
+        dragHandleSelector: this.options.dragHandleSelector,
+        excludedTags: this.options.excludedTags,
+        customNodes: this.options.customNodes,
+      }),
+    ];
+  },
+});
+
+export default GlobalDragHandle;

apps/client/src/features/editor/extensions/extensions.ts

@@ -9,9 +9,10 @@ import SubScript from "@tiptap/extension-subscript";
 import { Typography } from "@tiptap/extension-typography";
 import { TextStyle } from "@tiptap/extension-text-style";
 import { Color } from "@tiptap/extension-color";
-import GlobalDragHandle from "tiptap-extension-global-drag-handle";
 import { Youtube } from "@tiptap/extension-youtube";
-import SlashCommand, { SlashCommandExtension as Command } from "@/features/editor/extensions/slash-command";
+import SlashCommand, {
+  SlashCommandExtension as Command,
+} from "@/features/editor/extensions/slash-command";
 import renderItems from "@/features/editor/components/slash-menu/render-items";
 import getSuggestionItems from "@/features/editor/components/slash-menu/menu-items";
 import { Collaboration, isChangeOrigin } from "@tiptap/extension-collaboration";
@@ -47,11 +48,14 @@ import {
   Subpages,
   Heading,
   Highlight,
+  Indent,
   UniqueID,
   SharedStorage,
   Columns,
   Column,
   Status,
+  TransclusionSource,
+  TransclusionReference,
 } from "@docmost/editor-ext";
 import {
   randomElement,
@@ -80,6 +84,8 @@ import ExcalidrawView from "@/features/editor/components/excalidraw/excalidraw-v
 import EmbedView from "@/features/editor/components/embed/embed-view.tsx";
 import PdfView from "@/features/editor/components/pdf/pdf-view.tsx";
 import SubpagesView from "@/features/editor/components/subpages/subpages-view.tsx";
+import TransclusionView from "@/features/editor/components/transclusion/transclusion-view.tsx";
+import TransclusionReferenceView from "@/features/editor/components/transclusion/transclusion-reference-view.tsx";
 import { common, createLowlight } from "lowlight";
 import plaintext from "highlight.js/lib/languages/plaintext";
 import powershell from "highlight.js/lib/languages/powershell";
@@ -100,6 +106,7 @@ import { MarkdownClipboard } from "@/features/editor/extensions/markdown-clipboa
 import EmojiCommand from "./emoji-command";
 import { countWords } from "alfaaz";
 import AutoJoiner from "@/features/editor/extensions/autojoiner.ts";
+import GlobalDragHandle from "@/features/editor/extensions/drag-handle.ts";
 
 const lowlight = createLowlight(common);
 lowlight.register("mermaid", plaintext);
@@ -167,7 +174,7 @@ export const mainExtensions = [
   SharedStorage,
   Heading,
   UniqueID.configure({
-    types: ["heading", "paragraph"],
+    types: ["heading", "paragraph", "transclusionSource"],
     filterTransaction: (transaction) => !isChangeOrigin(transaction),
   }),
   Placeholder.configure({
@@ -197,6 +204,7 @@ export const mainExtensions = [
     showOnlyWhenEditable: true,
   }),
   TextAlign.configure({ types: ["heading", "paragraph"] }),
+  Indent,
   TaskList,
   TaskItem.configure({
     nested: true,
@@ -215,7 +223,9 @@ export const mainExtensions = [
   }),
   Typography,
   TrailingNode,
-  GlobalDragHandle,
+  GlobalDragHandle.configure({
+    customNodes: ["transclusionSource", "transclusionReference"],
+  }),
   TextStyle,
   Color,
   SlashCommand,
@@ -305,6 +315,8 @@ export const mainExtensions = [
     view: CodeBlockView,
     //@ts-ignore
     lowlight,
+    enableTabIndentation: true,
+    tabSize: 2,
     HTMLAttributes: {
       spellcheck: false,
     },
@@ -351,6 +363,12 @@ export const mainExtensions = [
   Status.configure({
     view: StatusView,
   }),
+  TransclusionSource.configure({
+    view: TransclusionView,
+  }),
+  TransclusionReference.configure({
+    view: TransclusionReferenceView,
+  }),
   MarkdownClipboard.configure({
     transformPastedText: true,
   }),
@@ -393,7 +411,10 @@ const TEMPLATE_EXCLUDED_SLASH_ITEMS = new Set([
 const TemplateSlashCommand = Command.configure({
   suggestion: {
     items: ({ query }: { query: string }) =>
-      getSuggestionItems({ query, excludeItems: TEMPLATE_EXCLUDED_SLASH_ITEMS }),
+      getSuggestionItems({
+        query,
+        excludeItems: TEMPLATE_EXCLUDED_SLASH_ITEMS,
+      }),
     render: renderItems,
   },
 });

apps/client/src/features/editor/full-editor.tsx

@@ -3,20 +3,27 @@ import React from "react";
 import { TitleEditor } from "@/features/editor/title-editor";
 import PageEditor from "@/features/editor/page-editor";
 import {
+  ActionIcon,
   Container,
   Divider,
   Group,
   Popover,
   Stack,
   Text,
+  Tooltip,
   UnstyledButton,
 } from "@mantine/core";
+import { IconInfoCircle } from "@tabler/icons-react";
 import { useAtom } from "jotai";
 import { userAtom } from "@/features/user/atoms/current-user-atom.ts";
 import { CustomAvatar } from "@/components/ui/custom-avatar.tsx";
 import { PageVerificationBadge } from "@/ee/page-verification";
 import { useTranslation } from "react-i18next";
 import { IContributor } from "@/features/page/types/page.types.ts";
+import { FixedToolbar } from "@/features/editor/components/fixed-toolbar/fixed-toolbar";
+import { PageEditMode } from "@/features/user/types/user.types.ts";
+import useToggleAside from "@/hooks/use-toggle-aside.tsx";
+import clsx from "clsx";
 
 const MemoizedTitleEditor = React.memo(TitleEditor);
 const MemoizedPageEditor = React.memo(PageEditor);
@@ -52,6 +59,11 @@ export function FullEditor({
 }: FullEditorProps) {
   const [user] = useAtom(userAtom);
   const fullPageWidth = user.settings?.preferences?.fullPageWidth;
+  const editorToolbarEnabled =
+    user.settings?.preferences?.editorToolbar ?? false;
+  const userPageEditMode =
+    user.settings?.preferences?.pageEditMode ?? PageEditMode.Edit;
+  const isEditMode = userPageEditMode === PageEditMode.Edit;
 
   return (
     <Container
@@ -59,6 +71,7 @@ export function FullEditor({
       size={!fullPageWidth && 900}
       className={classes.editor}
     >
+      {editorToolbarEnabled && editable && isEditMode && <FixedToolbar />}
       <MemoizedTitleEditor
         pageId={pageId}
         slugId={slugId}
@@ -93,6 +106,7 @@ function PageByline({
   readOnly,
 }: PageBylineProps) {
   const { t } = useTranslation();
+  const toggleAside = useToggleAside();
 
   const otherContributors = (contributors ?? []).filter(
     (c) => c.id !== creator?.id,
@@ -102,8 +116,8 @@ function PageByline({
     <Group
       gap="sm"
       mb="md"
-      className="print-hide"
+      className={clsx("print-hide", classes.byline)}
-      style={{ marginTop: "-0.5em", paddingLeft: "3rem" }}
+      style={{ marginTop: "-0.5em" }}
     >
       {creator && (
         <Popover position="bottom-start" shadow="md" width={280} withArrow>
@@ -165,6 +179,17 @@ function PageByline({
           </Popover.Dropdown>
         </Popover>
       )}
+      <Tooltip label={t("Details")} withArrow openDelay={250}>
+        <ActionIcon
+          variant="subtle"
+          color="gray"
+          aria-label={t("Details")}
+          onClick={() => toggleAside("details")}
+        >
+          <IconInfoCircle size={20} stroke={1.5} />
+        </ActionIcon>
+      </Tooltip>
+
       <PageVerificationBadge readOnly={readOnly} />
     </Group>
   );

apps/client/src/features/editor/page-editor.tsx

@@ -71,6 +71,7 @@ import { useEditorScroll } from "./hooks/use-editor-scroll";
 import { EditorAiMenu } from "@/ee/ai/components/editor/ai-menu/ai-menu";
 import { EditorLinkMenu } from "@/features/editor/components/link/link-menu";
 import ColumnsMenu from "@/features/editor/components/columns/columns-menu.tsx";
+import { TransclusionLookupProvider } from "@/features/editor/components/transclusion/transclusion-lookup-context";
 
 interface PageEditorProps {
   pageId: string;
@@ -399,18 +400,16 @@ export default function PageEditor({
     }
   }, [yjsConnectionStatus, isSynced]);
 
-  if (showStatic) {
   return (
+    <TransclusionLookupProvider>
+      {showStatic ? (
         <EditorProvider
           editable={false}
           immediatelyRender={true}
           extensions={mainExtensions}
           content={content}
         />
-    );
+      ) : (
-  }
-
-  return (
         <div className="editor-container" style={{ position: "relative" }}>
           <div ref={menuContainerRef}>
             <EditorContent editor={editor} />
@@ -436,10 +435,15 @@ export default function PageEditor({
                 <ColumnsMenu editor={editor} />
               </div>
             )}
-        {editor && !editorIsEditable && (editable || canComment) && providersRef.current && (
+            {editor &&
+              !editorIsEditable &&
+              (editable || canComment) &&
+              providersRef.current && (
                 <ReadonlyBubbleMenu editor={editor} />
               )}
-        {showCommentPopup && <CommentDialog editor={editor} pageId={pageId} />}
+            {showCommentPopup && (
+              <CommentDialog editor={editor} pageId={pageId} />
+            )}
             {showReadOnlyCommentPopup && (
               <CommentDialog editor={editor} pageId={pageId} readOnly />
             )}
@@ -449,5 +453,7 @@ export default function PageEditor({
             style={{ paddingBottom: "20vh" }}
           ></div>
         </div>
+      )}
+    </TransclusionLookupProvider>
   );
 }

apps/client/src/features/editor/readonly-page-editor.tsx

@@ -9,17 +9,26 @@ import { Placeholder } from "@tiptap/extension-placeholder";
 import { useAtom } from "jotai";
 import { readOnlyEditorAtom } from "@/features/editor/atoms/editor-atoms.ts";
 import { useEditorScroll } from "./hooks/use-editor-scroll";
+import { TransclusionLookupProvider } from "@/features/editor/components/transclusion/transclusion-lookup-context";
 
 interface PageEditorProps {
   title: string;
   content: any;
   pageId?: string;
+  /**
+   * When rendering inside a public share, pass the share's id (or key). Lookups
+   * for transclusion content then resolve against the share graph instead of
+   * the viewer's personal permissions, so a share never leaks source content
+   * that isn't itself shared.
+   */
+  shareId?: string;
 }
 
 export default function ReadonlyPageEditor({
   title,
   content,
   pageId,
+  shareId,
 }: PageEditorProps) {
   const [, setReadOnlyEditor] = useAtom(readOnlyEditorAtom);
   const isComponentMounted = useRef(false);
@@ -65,7 +74,7 @@ export default function ReadonlyPageEditor({
   ];
 
   return (
-    <>
+    <TransclusionLookupProvider shareId={shareId}>
       <div className="page-title">
         <EditorProvider
           editable={false}
@@ -95,6 +104,6 @@ export default function ReadonlyPageEditor({
         }}
       ></EditorProvider>
       <div style={{ paddingBottom: "20vh" }}></div>
-    </>
+    </TransclusionLookupProvider>
   );
 }

apps/client/src/features/editor/styles/editor.module.css

@@ -9,3 +9,15 @@
     }
 }
 
+.byline {
+    padding-left: 3rem;
+
+    @media (max-width: $mantine-breakpoint-sm) {
+        padding-left: 1rem;
+    }
+
+    @media print {
+        padding-left: 0;
+    }
+}
+

apps/client/src/features/editor/styles/indent.css

@@ -0,0 +1,14 @@
+.ProseMirror {
+  --indent-step: 2rem;
+}
+
+.ProseMirror [data-indent="1"] { padding-inline-start: calc(var(--indent-step) * 1); }
+.ProseMirror [data-indent="2"] { padding-inline-start: calc(var(--indent-step) * 2); }
+.ProseMirror [data-indent="3"] { padding-inline-start: calc(var(--indent-step) * 3); }
+.ProseMirror [data-indent="4"] { padding-inline-start: calc(var(--indent-step) * 4); }
+.ProseMirror [data-indent="5"] { padding-inline-start: calc(var(--indent-step) * 5); }
+.ProseMirror [data-indent="6"] { padding-inline-start: calc(var(--indent-step) * 6); }
+.ProseMirror [data-indent="7"] { padding-inline-start: calc(var(--indent-step) * 7); }
+.ProseMirror [data-indent="8"] { padding-inline-start: calc(var(--indent-step) * 8); }
+.ProseMirror [data-indent="9"] { padding-inline-start: calc(var(--indent-step) * 9); }
+.ProseMirror [data-indent="10"] { padding-inline-start: calc(var(--indent-step) * 10); }

apps/client/src/features/editor/styles/index.css

@@ -13,5 +13,6 @@
 @import "./mention.css";
 @import "./ordered-list.css";
 @import "./highlight.css";
+@import "./indent.css";
 @import "./columns.css";
 @import "./status.css";

apps/client/src/features/home/components/home-ai-prompt.module.css

@@ -16,7 +16,7 @@
 
 .subtitle {
   font-size: var(--mantine-font-size-sm);
-  color: light-dark(var(--mantine-color-gray-6), var(--mantine-color-dark-2));
+  color: var(--mantine-color-dimmed);
   text-align: center;
   margin-top: 6px;
   margin-bottom: var(--mantine-spacing-lg);

apps/client/src/features/page-details/components/backlinks-list.tsx

@@ -0,0 +1,113 @@
+import {
+  Button,
+  Center,
+  Group,
+  Loader,
+  Stack,
+  Text,
+  UnstyledButton,
+} from "@mantine/core";
+import { Link } from "react-router-dom";
+import { useTranslation } from "react-i18next";
+import { useBacklinksQuery } from "@/features/page-details/queries/backlinks-query.ts";
+import {
+  BacklinkDirection,
+  IBacklinkPageItem,
+} from "@/features/page-details/types/backlink.types.ts";
+import { buildPageUrl } from "@/features/page/page.utils.ts";
+import { getPageIcon } from "@/lib";
+
+interface BacklinksListProps {
+  pageId: string;
+  direction: BacklinkDirection;
+  enabled: boolean;
+  onItemClick: () => void;
+}
+
+export function BacklinksList({
+  pageId,
+  direction,
+  enabled,
+  onItemClick,
+}: BacklinksListProps) {
+  const { t } = useTranslation();
+  const { data, isLoading, fetchNextPage, hasNextPage, isFetchingNextPage } =
+    useBacklinksQuery(pageId, direction, enabled);
+
+  if (!enabled) return null;
+
+  if (isLoading) {
+    return (
+      <Center py="sm">
+        <Loader size="sm" />
+      </Center>
+    );
+  }
+
+  const items: IBacklinkPageItem[] =
+    data?.pages.flatMap((page) => page.items) ?? [];
+
+  if (items.length === 0) {
+    return (
+      <Text c="dimmed" size="sm" py="md">
+        {direction === "incoming"
+          ? t("No pages link here yet.")
+          : t("This page doesn't link to other pages yet.")}
+      </Text>
+    );
+  }
+
+  const handleClick = (e: React.MouseEvent) => {
+    if (e.metaKey || e.ctrlKey || e.shiftKey || e.button === 1) {
+      return;
+    }
+    onItemClick();
+  };
+
+  return (
+    <Stack gap={4}>
+      {items.map((item) => (
+        <UnstyledButton
+          key={item.id}
+          component={Link}
+          to={
+            item.space?.slug
+              ? buildPageUrl(
+                  item.space.slug,
+                  item.slugId,
+                  item.title ?? undefined,
+                )
+              : "#"
+          }
+          onClick={handleClick}
+          style={{ padding: "8px 4px", borderRadius: 4, userSelect: "none" }}
+        >
+          <Group gap="xs" wrap="nowrap">
+            {getPageIcon(item.icon ?? "")}
+            <Stack gap={0} style={{ flex: 1, minWidth: 0 }}>
+              <Text size="sm" fw={500} lineClamp={1}>
+                {item.title || t("Untitled")}
+              </Text>
+              {item.space?.name && (
+                <Text size="xs" c="dimmed" lineClamp={1}>
+                  {item.space.name}
+                </Text>
+              )}
+            </Stack>
+          </Group>
+        </UnstyledButton>
+      ))}
+      {hasNextPage && (
+        <Button
+          variant="subtle"
+          size="xs"
+          loading={isFetchingNextPage}
+          onClick={() => fetchNextPage()}
+          mt="xs"
+        >
+          {t("Load more")}
+        </Button>
+      )}
+    </Stack>
+  );
+}

apps/client/src/features/page-details/components/backlinks-modal.tsx

@@ -0,0 +1,62 @@
+import { Modal, Stack, Text } from "@mantine/core";
+import { useTranslation } from "react-i18next";
+import { useBacklinksCountQuery } from "@/features/page-details/queries/backlinks-query.ts";
+import { BacklinksList } from "./backlinks-list";
+
+interface BacklinksModalProps {
+  pageId: string;
+  opened: boolean;
+  onClose: () => void;
+}
+
+export function BacklinksModal({
+  pageId,
+  opened,
+  onClose,
+}: BacklinksModalProps) {
+  const { t } = useTranslation();
+  const { data: counts } = useBacklinksCountQuery(pageId);
+
+  return (
+    <Modal.Root opened={opened} onClose={onClose} size={640} yOffset="10vh">
+      <Modal.Overlay />
+      <Modal.Content>
+        <Modal.Header>
+          <Modal.Title fw={500}>{t("Backlinks")}</Modal.Title>
+          <Modal.CloseButton />
+        </Modal.Header>
+        <Modal.Body>
+          <Stack gap="lg">
+            <Stack gap="xs">
+              <Text size="sm" fw={500} c="dimmed">
+                {t("Incoming links ({{count}})", {
+                  count: counts?.incoming ?? 0,
+                })}
+              </Text>
+              <BacklinksList
+                pageId={pageId}
+                direction="incoming"
+                enabled={opened}
+                onItemClick={onClose}
+              />
+            </Stack>
+
+            <Stack gap="xs">
+              <Text size="sm" fw={500} c="dimmed">
+                {t("Outgoing links ({{count}})", {
+                  count: counts?.outgoing ?? 0,
+                })}
+              </Text>
+              <BacklinksList
+                pageId={pageId}
+                direction="outgoing"
+                enabled={opened}
+                onItemClick={onClose}
+              />
+            </Stack>
+          </Stack>
+        </Modal.Body>
+      </Modal.Content>
+    </Modal.Root>
+  );
+}

apps/client/src/features/page-details/components/page-details-aside.tsx

@@ -0,0 +1,233 @@
+import {
+  Divider,
+  Group,
+  Skeleton,
+  Stack,
+  Text,
+  UnstyledButton,
+} from "@mantine/core";
+import { IconChevronRight } from "@tabler/icons-react";
+import { useDisclosure } from "@mantine/hooks";
+import { useAtomValue } from "jotai";
+import { useParams } from "react-router-dom";
+import { useTranslation } from "react-i18next";
+import { extractPageSlugId } from "@/lib";
+import { usePageQuery } from "@/features/page/queries/page-query.ts";
+import { pageEditorAtom } from "@/features/editor/atoms/editor-atoms.ts";
+import { useBacklinksCountQuery } from "@/features/page-details/queries/backlinks-query.ts";
+import { BacklinksModal } from "./backlinks-modal";
+import { formattedDate, timeAgo } from "@/lib/time.ts";
+import { CustomAvatar } from "@/components/ui/custom-avatar.tsx";
+
+export function PageDetailsAside() {
+  const { pageSlug } = useParams();
+  const { data: page } = usePageQuery({
+    pageId: extractPageSlugId(pageSlug),
+  });
+  const pageEditor = useAtomValue(pageEditorAtom);
+  const { data: counts, isLoading: countsLoading } = useBacklinksCountQuery(page?.id);
+  const [modalOpened, { open: openModal, close: closeModal }] =
+    useDisclosure(false);
+
+  if (!page) return null;
+
+  const wordCount: number =
+    pageEditor?.storage?.characterCount?.words?.() ?? 0;
+  const characterCount: number =
+    pageEditor?.storage?.characterCount?.characters?.() ?? 0;
+
+  return (
+    <>
+      <Stack gap="md">
+        <PeopleSection
+          creator={page.creator}
+          lastUpdatedBy={page.lastUpdatedBy}
+        />
+
+        <Divider />
+
+        <StatsSection
+          wordCount={wordCount}
+          characterCount={characterCount}
+          createdAt={page.createdAt}
+          updatedAt={page.updatedAt}
+        />
+
+        <Divider />
+
+        <BacklinksSection
+          incomingCount={counts?.incoming ?? 0}
+          outgoingCount={counts?.outgoing ?? 0}
+          isLoading={countsLoading}
+          onClick={openModal}
+        />
+      </Stack>
+
+      <BacklinksModal
+        pageId={page.id}
+        opened={modalOpened}
+        onClose={closeModal}
+      />
+    </>
+  );
+}
+
+function PeopleSection({
+  creator,
+  lastUpdatedBy,
+}: {
+  creator: { id: string; name: string; avatarUrl: string } | null;
+  lastUpdatedBy: { id: string; name: string; avatarUrl: string } | null;
+}) {
+  const { t } = useTranslation();
+  return (
+    <Stack gap="xs">
+      <PersonRow label={t("Created by")} person={creator} />
+      <PersonRow label={t("Last updated by")} person={lastUpdatedBy} />
+    </Stack>
+  );
+}
+
+function PersonRow({
+  label,
+  person,
+}: {
+  label: string;
+  person: { id: string; name: string; avatarUrl: string } | null;
+}) {
+  return (
+    <Group justify="space-between" wrap="nowrap">
+      <Text size="sm" c="dimmed">
+        {label}
+      </Text>
+      {person ? (
+        <Group gap={6} wrap="nowrap">
+          <CustomAvatar
+            avatarUrl={person.avatarUrl}
+            name={person.name}
+            size={20}
+            radius="xl"
+          />
+          <Text size="sm" lineClamp={1}>
+            {person.name}
+          </Text>
+        </Group>
+      ) : (
+        <Text size="sm" c="dimmed">
+          —
+        </Text>
+      )}
+    </Group>
+  );
+}
+
+function StatsSection({
+  wordCount,
+  characterCount,
+  createdAt,
+  updatedAt,
+}: {
+  wordCount: number;
+  characterCount: number;
+  createdAt: Date | string;
+  updatedAt: Date | string;
+}) {
+  const { t } = useTranslation();
+  return (
+    <Stack gap="xs">
+      <Text size="xs" fw={500} c="dimmed">
+        {t("Stats")}
+      </Text>
+      <StatRow label={t("Word count")} value={String(wordCount)} />
+      <StatRow label={t("Characters")} value={String(characterCount)} />
+      <StatRow
+        label={t("Created")}
+        value={formattedDate(new Date(createdAt))}
+      />
+      <StatRow
+        label={t("Last updated")}
+        value={timeAgo(new Date(updatedAt))}
+      />
+    </Stack>
+  );
+}
+
+function StatRow({ label, value }: { label: string; value: string }) {
+  return (
+    <Group justify="space-between" wrap="nowrap">
+      <Text size="sm" c="dimmed">
+        {label}
+      </Text>
+      <Text size="sm">{value}</Text>
+    </Group>
+  );
+}
+
+function BacklinksSection({
+  incomingCount,
+  outgoingCount,
+  isLoading,
+  onClick,
+}: {
+  incomingCount: number;
+  outgoingCount: number;
+  isLoading: boolean;
+  onClick: () => void;
+}) {
+  const { t } = useTranslation();
+  return (
+    <Stack gap="xs">
+      <Text size="xs" fw={500} c="dimmed">
+        {t("Backlinks")}
+      </Text>
+      <BacklinksRow
+        label={t("Incoming links")}
+        count={incomingCount}
+        isLoading={isLoading}
+        onClick={onClick}
+      />
+      <BacklinksRow
+        label={t("Outgoing links")}
+        count={outgoingCount}
+        isLoading={isLoading}
+        onClick={onClick}
+      />
+    </Stack>
+  );
+}
+
+function BacklinksRow({
+  label,
+  count,
+  isLoading,
+  onClick,
+}: {
+  label: string;
+  count: number;
+  isLoading: boolean;
+  onClick: () => void;
+}) {
+  return (
+    <UnstyledButton
+      onClick={onClick}
+      style={{
+        padding: "4px 4px",
+        borderRadius: 4,
+      }}
+    >
+      <Group justify="space-between" wrap="nowrap">
+        <Text size="sm" c="dimmed">
+          {label}
+        </Text>
+        <Group gap={6} wrap="nowrap">
+          {isLoading ? (
+            <Skeleton height={18} width={20} />
+          ) : (
+            <Text size="sm">{count}</Text>
+          )}
+          <IconChevronRight size={16} stroke={2} color="var(--mantine-color-dimmed)" />
+        </Group>
+      </Group>
+    </UnstyledButton>
+  );
+}

apps/client/src/features/page-details/queries/backlinks-query.ts

@@ -0,0 +1,45 @@
+import { useInfiniteQuery, useQuery } from "@tanstack/react-query";
+import {
+  getBacklinks,
+  getBacklinksCount,
+} from "@/features/page-details/services/backlinks-service.ts";
+import {
+  BacklinkDirection,
+  IBacklinkCount,
+} from "@/features/page-details/types/backlink.types.ts";
+
+const BACKLINKS_STALE_TIME = 30 * 1000;
+const BACKLINKS_PAGE_LIMIT = 100;
+
+export function useBacklinksCountQuery(pageId: string | undefined) {
+  return useQuery<IBacklinkCount>({
+    queryKey: ["backlinks-count", pageId],
+    queryFn: () => getBacklinksCount(pageId as string),
+    enabled: !!pageId,
+    staleTime: BACKLINKS_STALE_TIME,
+  });
+}
+
+export function useBacklinksQuery(
+  pageId: string | undefined,
+  direction: BacklinkDirection,
+  enabled: boolean,
+) {
+  return useInfiniteQuery({
+    queryKey: ["backlinks", pageId, direction],
+    queryFn: ({ pageParam }) =>
+      getBacklinks({
+        pageId: pageId as string,
+        direction,
+        cursor: pageParam,
+        limit: BACKLINKS_PAGE_LIMIT,
+      }),
+    enabled: enabled && !!pageId,
+    initialPageParam: undefined as string | undefined,
+    getNextPageParam: (lastPage) =>
+      lastPage.meta.hasNextPage
+        ? (lastPage.meta.nextCursor ?? undefined)
+        : undefined,
+    staleTime: BACKLINKS_STALE_TIME,
+  });
+}

apps/client/src/features/page-details/services/backlinks-service.ts

@@ -0,0 +1,26 @@
+import api from "@/lib/api-client";
+import { IPagination } from "@/lib/types.ts";
+import {
+  IBacklinkCount,
+  IBacklinkPageItem,
+  IBacklinksListParams,
+} from "@/features/page-details/types/backlink.types.ts";
+
+export async function getBacklinksCount(
+  pageId: string,
+): Promise<IBacklinkCount> {
+  const req = await api.post<IBacklinkCount>("/pages/backlinks-count", {
+    pageId,
+  });
+  return req.data;
+}
+
+export async function getBacklinks(
+  params: IBacklinksListParams,
+): Promise<IPagination<IBacklinkPageItem>> {
+  const req = await api.post<IPagination<IBacklinkPageItem>>(
+    "/pages/backlinks",
+    params,
+  );
+  return req.data;
+}

apps/client/src/features/page-details/types/backlink.types.ts

@@ -0,0 +1,23 @@
+export type BacklinkDirection = "incoming" | "outgoing";
+
+export interface IBacklinkCount {
+  incoming: number;
+  outgoing: number;
+}
+
+export interface IBacklinkPageItem {
+  id: string;
+  slugId: string;
+  title: string | null;
+  icon: string | null;
+  spaceId: string;
+  space: { id: string; slug: string; name: string } | null;
+  updatedAt: string;
+}
+
+export interface IBacklinksListParams {
+  pageId: string;
+  direction: BacklinkDirection;
+  cursor?: string;
+  limit?: number;
+}

apps/client/src/features/transclusion/components/sync-block-references-dropdown.module.css

@@ -0,0 +1,205 @@
+.trigger {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 3px 6px 3px 6px;
+  border-radius: 999px;
+  background: transparent;
+  border: 0;
+  cursor: pointer;
+  font: inherit;
+  font-size: var(--mantine-font-size-xs);
+  color: light-dark(
+    var(--mantine-color-gray-7),
+    var(--mantine-color-dark-1)
+  );
+  transition: background 120ms ease;
+  user-select: none;
+}
+
+.trigger:hover {
+  background: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-dark-5)
+  );
+}
+
+.triggerIcon {
+  color: light-dark(
+    var(--mantine-color-gray-5),
+    var(--mantine-color-dark-2)
+  );
+  display: inline-flex;
+}
+
+.triggerChev {
+  color: light-dark(
+    var(--mantine-color-gray-5),
+    var(--mantine-color-dark-2)
+  );
+  display: inline-flex;
+  margin-left: 2px;
+}
+
+.dropdown {
+  padding: 0;
+}
+
+.banner {
+  display: flex;
+  gap: 10px;
+  padding: 10px 14px;
+  background: light-dark(
+    var(--mantine-color-gray-0),
+    var(--mantine-color-dark-6)
+  );
+  border-bottom: 1px solid
+    light-dark(var(--mantine-color-gray-2), var(--mantine-color-dark-4));
+  color: light-dark(
+    var(--mantine-color-gray-7),
+    var(--mantine-color-dark-1)
+  );
+  font-size: var(--mantine-font-size-xs);
+  line-height: 1.5;
+}
+
+.bannerIcon {
+  color: light-dark(
+    var(--mantine-color-gray-6),
+    var(--mantine-color-dark-2)
+  );
+  flex: none;
+  display: inline-flex;
+  margin-top: 1px;
+}
+
+.bannerLink {
+  color: light-dark(
+    var(--mantine-color-gray-9),
+    var(--mantine-color-dark-0)
+  );
+  text-decoration: underline;
+  text-underline-offset: 2px;
+  text-decoration-thickness: 1px;
+  font-weight: 500;
+}
+
+.bannerLink:hover {
+  text-decoration-thickness: 2px;
+}
+
+.section {
+  padding: 12px;
+}
+
+.sectionLabel {
+  font-size: var(--mantine-font-size-xs);
+  font-weight: 500;
+  color: light-dark(
+    var(--mantine-color-gray-6),
+    var(--mantine-color-dark-2)
+  );
+  margin: 0 0 6px;
+  padding: 0 4px;
+}
+
+.list {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+
+.row {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 6px 8px;
+  border-radius: 6px;
+  cursor: pointer;
+  color: light-dark(
+    var(--mantine-color-gray-9),
+    var(--mantine-color-dark-0)
+  );
+  font-size: var(--mantine-font-size-sm);
+  text-decoration: none;
+  transition: background 100ms ease;
+}
+
+.row:hover {
+  background: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-dark-5)
+  );
+}
+
+.rowIcon {
+  color: light-dark(
+    var(--mantine-color-gray-5),
+    var(--mantine-color-dark-2)
+  );
+  flex: none;
+  display: inline-flex;
+}
+
+.rowEmoji {
+  font-size: 14px;
+  line-height: 1;
+  flex: none;
+  display: inline-flex;
+  width: 18px;
+  justify-content: center;
+}
+
+.rowTitle {
+  font-weight: 500;
+  flex: 1;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.badge {
+  font-size: 10px;
+  font-weight: 600;
+  letter-spacing: 0.05em;
+  padding: 2px 7px;
+  border-radius: 999px;
+  background: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-dark-5)
+  );
+  color: light-dark(
+    var(--mantine-color-gray-7),
+    var(--mantine-color-dark-1)
+  );
+  text-transform: uppercase;
+  flex: none;
+}
+
+.badgeAccent {
+  background: light-dark(
+    var(--mantine-color-blue-0),
+    var(--mantine-color-blue-9)
+  );
+  color: light-dark(
+    var(--mantine-color-blue-7),
+    var(--mantine-color-blue-2)
+  );
+}
+
+.empty {
+  padding: 18px 14px;
+  text-align: center;
+  color: light-dark(
+    var(--mantine-color-gray-6),
+    var(--mantine-color-dark-2)
+  );
+  font-size: var(--mantine-font-size-xs);
+}
+
+.loading {
+  display: flex;
+  justify-content: center;
+  padding: 18px;
+}

apps/client/src/features/transclusion/components/sync-block-references-dropdown.tsx

@@ -0,0 +1,184 @@
+import { useState } from "react";
+import { Loader, Popover } from "@mantine/core";
+import {
+  IconChevronDown,
+  IconCornerDownLeft,
+  IconFile,
+  IconInfoCircle,
+} from "@tabler/icons-react";
+import { Link } from "react-router-dom";
+import { Trans, useTranslation } from "react-i18next";
+import { useReferencesQuery } from "@/features/transclusion/queries/transclusion-query";
+import type { ReferencingPage } from "@/features/transclusion/types/transclusion.types";
+import { buildPageUrl } from "@/features/page/page.utils";
+import classes from "./sync-block-references-dropdown.module.css";
+
+type Props = {
+  sourcePageId: string | null;
+  transclusionId: string | null;
+  /** The page currently being viewed - used to mark the "THIS PAGE" badge. */
+  currentPageId: string;
+  /**
+   * Source: trigger reads "Editing original".
+   * Reference: trigger reads "Synced to N other pages".
+   */
+  mode: "source" | "reference";
+  /** Notified whenever the dropdown opens/closes (for keep-chrome-visible). */
+  onOpenChange?: (open: boolean) => void;
+};
+
+export default function SyncBlockReferencesDropdown({
+  sourcePageId,
+  transclusionId,
+  currentPageId,
+  mode,
+  onOpenChange,
+}: Props) {
+  const { t } = useTranslation();
+  const [opened, setOpened] = useState(false);
+
+  const handleOpenChange = (next: boolean) => {
+    setOpened(next);
+    onOpenChange?.(next);
+  };
+
+  // Fetch eagerly so the "Synced to N other pages" count is correct even
+  // before the dropdown is opened. The cache is keyed on (sourcePageId,
+  // transclusionId), so two views (source + reference) share one fetch.
+  const enabled = !!sourcePageId && !!transclusionId;
+  const { data, isLoading } = useReferencesQuery(
+    sourcePageId,
+    transclusionId,
+    enabled,
+  );
+
+  const allPages: Array<{ page: ReferencingPage; isOriginal: boolean }> = [];
+  if (data?.source) {
+    allPages.push({ page: data.source, isOriginal: true });
+  }
+  for (const ref of data?.references ?? []) {
+    allPages.push({ page: ref, isOriginal: false });
+  }
+
+  const otherCount = allPages.filter((p) => p.page.id !== currentPageId).length;
+  const label =
+    mode === "source"
+      ? t("Editing original")
+      : t("Synced to {{count}} other page", {
+          count: otherCount,
+          defaultValue_one: "Synced to {{count}} other page",
+          defaultValue_other: "Synced to {{count}} other pages",
+        });
+
+  return (
+    <Popover
+      position="bottom-start"
+      shadow="lg"
+      opened={opened}
+      onChange={handleOpenChange}
+      width={340}
+      withinPortal
+    >
+      <Popover.Target>
+        <button
+          type="button"
+          className={classes.trigger}
+          onClick={() => handleOpenChange(!opened)}
+          aria-expanded={opened}
+          aria-haspopup="dialog"
+        >
+          <span className={classes.triggerIcon}>
+            <IconCornerDownLeft size={14} stroke={1.8} />
+          </span>
+          <span>{label}</span>
+          <span className={classes.triggerChev}>
+            <IconChevronDown size={12} stroke={2} />
+          </span>
+        </button>
+      </Popover.Target>
+
+      <Popover.Dropdown className={classes.dropdown}>
+        {mode === "reference" && data?.source && (
+          <div className={classes.banner}>
+            <span className={classes.bannerIcon}>
+              <IconInfoCircle size={16} stroke={1.6} />
+            </span>
+            <div>
+              <Trans
+                i18nKey="sourceReadOnlyHint"
+                defaults="This section is read-only here. Edit it on the <link>original source page</link>."
+                components={{
+                  link: (
+                    <Link
+                      to={
+                        data.source.spaceSlug
+                          ? buildPageUrl(
+                              data.source.spaceSlug,
+                              data.source.slugId,
+                              data.source.title,
+                            )
+                          : `/p/${data.source.id}`
+                      }
+                      className={classes.bannerLink}
+                      onClick={() => handleOpenChange(false)}
+                    />
+                  ),
+                }}
+              />
+            </div>
+          </div>
+        )}
+
+        {isLoading ? (
+          <div className={classes.loading}>
+            <Loader size="xs" />
+          </div>
+        ) : allPages.length === 0 ? (
+          <div className={classes.empty}>{t("No pages")}</div>
+        ) : (
+          <div className={classes.section}>
+            <div className={classes.sectionLabel}>{t("Synced to")}</div>
+            <ul className={classes.list}>
+              {allPages.map(({ page, isOriginal }) => {
+                const isCurrent = page.id === currentPageId;
+                const href = page.spaceSlug
+                  ? buildPageUrl(page.spaceSlug, page.slugId, page.title)
+                  : `/p/${page.id}`;
+                const title = page.title?.length ? page.title : t("Untitled");
+                return (
+                  <li key={page.id}>
+                    <Link
+                      to={href}
+                      className={classes.row}
+                      onClick={() => handleOpenChange(false)}
+                    >
+                      {page.icon ? (
+                        <span className={classes.rowEmoji}>{page.icon}</span>
+                      ) : (
+                        <span className={classes.rowIcon}>
+                          <IconFile size={16} stroke={1.6} />
+                        </span>
+                      )}
+                      <span className={classes.rowTitle} title={title}>
+                        {title}
+                      </span>
+                      {isCurrent ? (
+                        <span
+                          className={`${classes.badge} ${classes.badgeAccent}`}
+                        >
+                          {t("THIS PAGE")}
+                        </span>
+                      ) : isOriginal ? (
+                        <span className={classes.badge}>{t("ORIGINAL")}</span>
+                      ) : null}
+                    </Link>
+                  </li>
+                );
+              })}
+            </ul>
+          </div>
+        )}
+      </Popover.Dropdown>
+    </Popover>
+  );
+}

apps/client/src/features/transclusion/queries/transclusion-query.ts

@@ -0,0 +1,32 @@
+import { useMutation, useQuery } from "@tanstack/react-query";
+import {
+  listReferences,
+  unsyncReference,
+} from "../services/transclusion-api";
+
+export function useReferencesQuery(
+  sourcePageId: string | null,
+  transclusionId: string | null,
+  enabled: boolean,
+) {
+  return useQuery({
+    queryKey: ["transclusion-references", sourcePageId, transclusionId],
+    queryFn: () =>
+      listReferences({
+        sourcePageId: sourcePageId!,
+        transclusionId: transclusionId!,
+      }),
+    enabled: enabled && !!sourcePageId && !!transclusionId,
+    staleTime: 10 * 1000,
+  });
+}
+
+export function useUnsyncReferenceMutation() {
+  return useMutation({
+    mutationFn: (params: {
+      referencePageId: string;
+      sourcePageId: string;
+      transclusionId: string;
+    }) => unsyncReference(params),
+  });
+}

apps/client/src/features/transclusion/services/transclusion-api.ts

@@ -0,0 +1,37 @@
+import api from "@/lib/api-client";
+import type {
+  ReferencingPagesResponse,
+  TransclusionLookup,
+} from "../types/transclusion.types";
+
+export async function lookupTransclusion(params: {
+  references: Array<{ sourcePageId: string; transclusionId: string }>;
+}): Promise<{ items: TransclusionLookup[] }> {
+  const r = await api.post("/pages/transclusion/lookup", params);
+  return r.data;
+}
+
+export async function lookupTransclusionForShare(params: {
+  shareId: string;
+  references: Array<{ sourcePageId: string; transclusionId: string }>;
+}): Promise<{ items: TransclusionLookup[] }> {
+  const r = await api.post("/shares/transclusion/lookup", params);
+  return r.data;
+}
+
+export async function listReferences(params: {
+  sourcePageId: string;
+  transclusionId: string;
+}): Promise<ReferencingPagesResponse> {
+  const r = await api.post("/pages/transclusion/references", params);
+  return r.data;
+}
+
+export async function unsyncReference(params: {
+  referencePageId: string;
+  sourcePageId: string;
+  transclusionId: string;
+}): Promise<{ content: unknown }> {
+  const r = await api.post("/pages/transclusion/unsync-reference", params);
+  return r.data;
+}

apps/client/src/features/transclusion/types/transclusion.types.ts

@@ -0,0 +1,23 @@
+export type TransclusionLookup =
+  | {
+      sourcePageId: string;
+      transclusionId: string;
+      content: unknown;
+      sourceUpdatedAt: string;
+    }
+  | { sourcePageId: string; transclusionId: string; status: "not_found" }
+  | { sourcePageId: string; transclusionId: string; status: "no_access" };
+
+export type ReferencingPage = {
+  id: string;
+  slugId: string;
+  title: string | null;
+  icon: string | null;
+  spaceId: string;
+  spaceSlug: string | null;
+};
+
+export type ReferencingPagesResponse = {
+  source: ReferencingPage | null;
+  references: ReferencingPage[];
+};

apps/client/src/features/user/components/fixed-toolbar-pref.tsx

@@ -0,0 +1,57 @@
+import { userAtom } from "@/features/user/atoms/current-user-atom";
+import { updateUser } from "@/features/user/services/user-service";
+import { Badge, Group, Switch, Text } from "@mantine/core";
+import { useAtom } from "jotai";
+import React, { useState } from "react";
+import { useTranslation } from "react-i18next";
+import {
+  ResponsiveSettingsRow,
+  ResponsiveSettingsContent,
+  ResponsiveSettingsControl,
+} from "@/components/ui/responsive-settings-row";
+
+export default function FixedToolbarPref() {
+  const { t } = useTranslation();
+  const [user, setUser] = useAtom(userAtom);
+  const [checked, setChecked] = useState(
+    user.settings?.preferences?.editorToolbar ?? false,
+  );
+
+  const handleChange = async (event: React.ChangeEvent<HTMLInputElement>) => {
+    const value = event.currentTarget.checked;
+    setChecked(value);
+    try {
+      const updatedUser = await updateUser({ editorToolbar: value });
+      setUser(updatedUser);
+    } catch {
+      setChecked(!value);
+    }
+  };
+
+  return (
+    <ResponsiveSettingsRow>
+      <ResponsiveSettingsContent>
+        <Group gap="xs">
+          <Text size="md">{t("Fixed editor toolbar")}</Text>
+          <Badge size="xs" color="gray" variant="light">
+            {t("Experimental")}
+          </Badge>
+        </Group>
+        <Text size="sm" c="dimmed">
+          {t(
+            "Show a formatting toolbar above the editor with quick access to common actions.",
+          )}
+        </Text>
+      </ResponsiveSettingsContent>
+
+      <ResponsiveSettingsControl>
+        <Switch
+          labelPosition="left"
+          defaultChecked={checked}
+          onChange={handleChange}
+          aria-label={t("Toggle fixed editor toolbar")}
+        />
+      </ResponsiveSettingsControl>
+    </ResponsiveSettingsRow>
+  );
+}

apps/client/src/features/user/types/user.types.ts

@@ -20,6 +20,7 @@ export interface IUser {
   deletedAt: Date;
   fullPageWidth: boolean; // used for update
   pageEditMode: string; // used for update
+  editorToolbar: boolean; // used for update
   notificationPageUpdates: boolean; // used for update
   notificationPageUserMention: boolean; // used for update
   notificationCommentUserMention: boolean; // used for update
@@ -37,6 +38,7 @@ export interface IUserSettings {
   preferences: {
     fullPageWidth: boolean;
     pageEditMode: string;
+    editorToolbar: boolean;
   };
   notifications?: {
     "page.updated"?: boolean;

apps/client/src/features/user/user-provider.tsx

@@ -60,6 +60,10 @@ export function UserProvider({ children }: React.PropsWithChildren) {
     }
   }, [data, isLoading]);
 
+  useEffect(() => {
+    document.documentElement.lang = i18n.resolvedLanguage || i18n.language || "en-US";
+  }, [i18n.language, i18n.resolvedLanguage]);
+
   useEffect(() => {
     if (entitlements) {
       setEntitlements(entitlements);

apps/client/src/pages/settings/account/account-preferences.tsx

@@ -3,6 +3,7 @@ import AccountLanguage from "@/features/user/components/account-language.tsx";
 import AccountTheme from "@/features/user/components/account-theme.tsx";
 import PageWidthPref from "@/features/user/components/page-width-pref.tsx";
 import PageEditPref from "@/features/user/components/page-state-pref";
+import FixedToolbarPref from "@/features/user/components/fixed-toolbar-pref";
 import NotificationPref from "@/features/user/components/notification-pref";
 import { getAppName } from "@/lib/config.ts";
 import { Divider } from "@mantine/core";
@@ -37,6 +38,10 @@ export default function AccountPreferences() {
 
       <Divider my={"md"} />
 
+      <FixedToolbarPref />
+
+      <Divider my={"md"} />
+
       <NotificationPref />
     </>
   );

apps/client/src/pages/share/shared-page.tsx

@@ -65,6 +65,7 @@ export default function SharedPage() {
           title={data.page.title}
           content={data.page.content}
           pageId={data.page.id}
+          shareId={data.share.id}
         />
       </Container>
 

apps/server/package.json

@@ -163,10 +163,11 @@
     "rootDir": "src",
     "testRegex": ".*\\.spec\\.ts$",
     "transform": {
+      "happy-dom.+\\.js$": ["babel-jest", { "presets": [["@babel/preset-env", { "targets": { "node": "current" } }]] }],
       "^.+\\.(t|j)s$": "ts-jest"
     },
     "transformIgnorePatterns": [
-      "/node_modules/(?!(\\.pnpm/)?(nanoid|uuid|image-dimensions|marked)(@|/))"
+      "/node_modules/(?!(\\.pnpm/)?(nanoid|uuid|image-dimensions|marked|happy-dom)(@|/))"
     ],
     "collectCoverageFrom": [
       "**/*.(t|j)s"

apps/server/src/collaboration/collaboration.module.ts

@@ -1,10 +1,4 @@
-import {
+import { Logger, Module, OnModuleDestroy, OnModuleInit } from '@nestjs/common';
-  Global,
-  Logger,
-  Module,
-  OnModuleDestroy,
-  OnModuleInit,
-} from '@nestjs/common';
 import { AuthenticationExtension } from './extensions/authentication.extension';
 import { PersistenceExtension } from './extensions/persistence.extension';
 import { CollaborationGateway } from './collaboration.gateway';
@@ -18,6 +12,10 @@ import { LoggerExtension } from './extensions/logger.extension';
 import { CollaborationHandler } from './collaboration.handler';
 import { CollabHistoryService } from './services/collab-history.service';
 import { WatcherModule } from '../core/watcher/watcher.module';
+import { TransclusionService } from '../core/page/transclusion/transclusion.service';
+import { TransclusionModule } from '../core/page/transclusion/transclusion.module';
+import { StorageModule } from '../integrations/storage/storage.module';
+import { EnvironmentModule } from '../integrations/environment/environment.module';
 
 @Module({
   providers: [
@@ -28,9 +26,17 @@ import { WatcherModule } from '../core/watcher/watcher.module';
     HistoryProcessor,
     CollabHistoryService,
     CollaborationHandler,
+    TransclusionService,
   ],
   exports: [CollaborationGateway],
-  imports: [TokenModule, WatcherModule],
+  imports: [
+    TokenModule,
+    WatcherModule,
+    StorageModule.forRootAsync({
+      imports: [EnvironmentModule],
+    }),
+    TransclusionModule,
+  ],
 })
 export class CollaborationModule implements OnModuleInit, OnModuleDestroy {
   private readonly logger = new Logger(CollaborationModule.name);

apps/server/src/collaboration/collaboration.util.ts

@@ -34,12 +34,15 @@ import {
   Mention,
   Subpages,
   Highlight,
+  Indent,
   UniqueID,
   Columns,
   Column,
   Status,
   addUniqueIdsToDoc,
   htmlToMarkdown,
+  TransclusionSource,
+  TransclusionReference,
 } from '@docmost/editor-ext';
 import { generateText, getSchema, JSONContent } from '@tiptap/core';
 import { generateHTML, generateJSON } from '../common/helpers/prosemirror/html';
@@ -60,10 +63,11 @@ export const tiptapExtensions = [
   }),
   Heading,
   UniqueID.configure({
-    types: ['heading', 'paragraph'],
+    types: ['heading', 'paragraph', 'transclusionSource'],
   }),
   Comment,
   TextAlign.configure({ types: ['heading', 'paragraph'] }),
+  Indent,
   TaskList,
   TaskItem.configure({
     nested: true,
@@ -101,6 +105,8 @@ export const tiptapExtensions = [
   Columns,
   Column,
   Status,
+  TransclusionSource,
+  TransclusionReference,
 ] as any;
 
 export function jsonToHtml(tiptapJson: any) {

apps/server/src/collaboration/extensions/persistence.extension.ts

@@ -32,6 +32,7 @@ import {
   HISTORY_FAST_THRESHOLD,
   HISTORY_INTERVAL,
 } from '../constants';
+import { TransclusionService } from '../../core/page/transclusion/transclusion.service';
 
 @Injectable()
 export class PersistenceExtension implements Extension {
@@ -45,6 +46,7 @@ export class PersistenceExtension implements Extension {
     @InjectQueue(QueueName.HISTORY_QUEUE) private historyQueue: Queue,
     @InjectQueue(QueueName.NOTIFICATION_QUEUE) private notificationQueue: Queue,
     private readonly collabHistory: CollabHistoryService,
+    private readonly transclusionService: TransclusionService,
   ) {}
 
   async onLoadDocument(data: onLoadDocumentPayload) {
@@ -134,7 +136,11 @@ export class PersistenceExtension implements Extension {
         try {
           const existingContributors = page.contributorIds || [];
           contributorIds = Array.from(
-            new Set([...existingContributors, ...editingUserIds, page.creatorId]),
+            new Set([
+              ...existingContributors,
+              ...editingUserIds,
+              page.creatorId,
+            ]),
           );
         } catch (err) {
           //this.logger.debug('Contributors error:' + err?.['message']);
@@ -158,6 +164,10 @@ export class PersistenceExtension implements Extension {
       this.logger.error(`Failed to update page ${pageId}`, err);
     }
 
+    if (page) {
+      await this.syncTransclusion(pageId, page.workspaceId, tiptapJson);
+    }
+
     if (page) {
       await this.collabHistory.addContributors(pageId, editingUserIds);
 
@@ -165,7 +175,9 @@ export class PersistenceExtension implements Extension {
 
       const userMentions = extractUserMentions(mentions);
       const oldMentions = page.content ? extractMentions(page.content) : [];
-      const oldMentionedUserIds = extractUserMentions(oldMentions).map((m) => m.entityId);
+      const oldMentionedUserIds = extractUserMentions(oldMentions).map(
+        (m) => m.entityId,
+      );
 
       if (userMentions.length > 0) {
         await this.notificationQueue.add(QueueJob.PAGE_MENTION_NOTIFICATION, {
@@ -229,4 +241,41 @@ export class PersistenceExtension implements Extension {
       { jobId: page.id, delay },
     );
   }
+
+  /**
+   * Refresh `page_transclusions` and `page_transclusion_references` to match
+   * the page's current content. Runs outside the page-write transaction and
+   * isolates each call so a failure here cannot affect the page save itself.
+   * The diff is idempotent — the next save converges if a round drops anything.
+   */
+  private async syncTransclusion(
+    pageId: string,
+    workspaceId: string,
+    tiptapJson: unknown,
+  ): Promise<void> {
+    try {
+      await this.transclusionService.syncPageTransclusions(
+        pageId,
+        workspaceId,
+        tiptapJson,
+      );
+    } catch (err) {
+      this.logger.error(
+        { err, pageId },
+        'Failed to sync transclusions for page',
+      );
+    }
+    try {
+      await this.transclusionService.syncPageReferences(
+        pageId,
+        workspaceId,
+        tiptapJson,
+      );
+    } catch (err) {
+      this.logger.error(
+        { err, pageId },
+        'Failed to sync transclusion references for page',
+      );
+    }
+  }
 }

apps/server/src/common/helpers/prosemirror/attachment-node-types.ts

@@ -0,0 +1,13 @@
+const ATTACHMENT_NODE_TYPES = [
+  'attachment',
+  'image',
+  'video',
+  'audio',
+  'pdf',
+  'excalidraw',
+  'drawio',
+];
+
+export function isAttachmentNode(nodeType: string): boolean {
+  return ATTACHMENT_NODE_TYPES.includes(nodeType);
+}

apps/server/src/common/helpers/prosemirror/html/index.ts

@@ -1,2 +1,2 @@
-export * from './generateHTML.js';
+export * from './generateHTML';
-export * from './generateJSON.js';
+export * from './generateJSON';

apps/server/src/common/helpers/prosemirror/indent-schema.spec.ts

@@ -0,0 +1,63 @@
+import { htmlToJson, jsonToHtml } from '../../../collaboration/collaboration.util';
+
+const findFirstChild = (
+  json: any,
+  type: string,
+): any | undefined => {
+  if (!json || typeof json !== 'object') return undefined;
+  if (json.type === type) return json;
+  if (Array.isArray(json.content)) {
+    for (const child of json.content) {
+      const found = findFirstChild(child, type);
+      if (found) return found;
+    }
+  }
+  return undefined;
+};
+
+describe('indent attribute round-trip', () => {
+  it('parses data-indent on a paragraph into the indent attribute', () => {
+    const html = '<p data-indent="3">Hello</p>';
+    const json = htmlToJson(html);
+    const paragraph = findFirstChild(json, 'paragraph');
+    expect(paragraph).toBeDefined();
+    expect(paragraph.attrs.indent).toBe(3);
+  });
+
+  it('parses data-indent on a heading into the indent attribute', () => {
+    const html = '<h2 data-indent="2">Heading</h2>';
+    const json = htmlToJson(html);
+    const heading = findFirstChild(json, 'heading');
+    expect(heading).toBeDefined();
+    expect(heading.attrs.indent).toBe(2);
+    expect(heading.attrs.level).toBe(2);
+  });
+
+  it('clamps out-of-range data-indent values', () => {
+    const html = '<p data-indent="42">Too deep</p>';
+    const json = htmlToJson(html);
+    const paragraph = findFirstChild(json, 'paragraph');
+    expect(paragraph.attrs.indent).toBe(8);
+  });
+
+  it('renders nonzero indent back to data-indent on HTML serialization', () => {
+    const html = '<p data-indent="4">Round-trip</p>';
+    const json = htmlToJson(html);
+    const out = jsonToHtml(json);
+    expect(out).toContain('data-indent="4"');
+  });
+
+  it('omits data-indent for indent zero', () => {
+    const html = '<p>No indent</p>';
+    const json = htmlToJson(html);
+    const out = jsonToHtml(json);
+    expect(out).not.toContain('data-indent');
+  });
+
+  it('preserves indent through HTML → JSON → HTML', () => {
+    const original = '<p data-indent="5">Five deep</p>';
+    const json = htmlToJson(original);
+    const final = jsonToHtml(json);
+    expect(final).toContain('data-indent="5"');
+  });
+});

apps/server/src/common/helpers/prosemirror/utils.ts

@@ -11,6 +11,7 @@ import {
   INTERNAL_LINK_REGEX,
   extractPageSlugId,
 } from '../../../integrations/export/utils';
+import { isAttachmentNode } from './attachment-node-types';
 
 export interface MentionNode {
   id: string;
@@ -122,18 +123,7 @@ export function getProsemirrorContent(content: any) {
   );
 }
 
-export function isAttachmentNode(nodeType: string) {
+export { isAttachmentNode };
-  const attachmentNodeTypes = [
-    'attachment',
-    'image',
-    'video',
-    'audio',
-    'pdf',
-    'excalidraw',
-    'drawio',
-  ];
-  return attachmentNodeTypes.includes(nodeType);
-}
 
 export function getAttachmentIds(prosemirrorJson: any) {
   const doc = jsonToNode(prosemirrorJson);

apps/server/src/core/page/dto/backlink.dto.ts

@@ -0,0 +1,11 @@
+import { IsIn, IsNotEmpty, IsString } from 'class-validator';
+import { PageIdDto } from './page.dto';
+
+export type BacklinkDirection = 'incoming' | 'outgoing';
+
+export class BacklinksListDto extends PageIdDto {
+  @IsString()
+  @IsNotEmpty()
+  @IsIn(['incoming', 'outgoing'])
+  direction: BacklinkDirection;
+}

apps/server/src/core/page/page.controller.ts

@@ -11,6 +11,7 @@ import {
   UseGuards,
 } from '@nestjs/common';
 import { PageService } from './services/page.service';
+import { BacklinkService } from './services/backlink.service';
 import { PageAccessService } from './page-access/page-access.service';
 import { CreatePageDto } from './dto/create-page.dto';
 import { UpdatePageDto } from './dto/update-page.dto';
@@ -38,6 +39,7 @@ import { RecentPageDto } from './dto/recent-page.dto';
 import { CreatedByUserDto } from './dto/created-by-user.dto';
 import { DuplicatePageDto } from './dto/duplicate-page.dto';
 import { DeletedPageDto } from './dto/deleted-page.dto';
+import { BacklinksListDto } from './dto/backlink.dto';
 import {
   jsonToHtml,
   jsonToMarkdown,
@@ -58,6 +60,7 @@ export class PageController {
     private readonly pageHistoryService: PageHistoryService,
     private readonly spaceAbility: SpaceAbilityFactory,
     private readonly pageAccessService: PageAccessService,
+    private readonly backlinkService: BacklinkService,
     @Inject(AUDIT_SERVICE) private readonly auditService: IAuditService,
   ) {}
 
@@ -96,6 +99,42 @@ export class PageController {
     return { ...page, permissions };
   }
 
+  @HttpCode(HttpStatus.OK)
+  @Post('backlinks-count')
+  async getBacklinksCount(
+    @Body() dto: PageIdDto,
+    @AuthUser() user: User,
+  ): Promise<{ incoming: number; outgoing: number }> {
+    const page = await this.pageRepo.findById(dto.pageId);
+    if (!page) {
+      throw new NotFoundException('Page not found');
+    }
+    await this.pageAccessService.validateCanView(page, user);
+
+    return this.backlinkService.countByPageId(page.id, user.id);
+  }
+
+  @HttpCode(HttpStatus.OK)
+  @Post('backlinks')
+  async getBacklinks(
+    @Body() dto: BacklinksListDto,
+    @Body() pagination: PaginationOptions,
+    @AuthUser() user: User,
+  ) {
+    const page = await this.pageRepo.findById(dto.pageId);
+    if (!page) {
+      throw new NotFoundException('Page not found');
+    }
+    await this.pageAccessService.validateCanView(page, user);
+
+    return this.backlinkService.findByPageId(
+      page.id,
+      dto.direction,
+      user.id,
+      pagination,
+    );
+  }
+
   @HttpCode(HttpStatus.OK)
   @Post('create')
   async create(

apps/server/src/core/page/page.module.ts

@@ -3,14 +3,26 @@ import { PageService } from './services/page.service';
 import { PageController } from './page.controller';
 import { PageHistoryService } from './services/page-history.service';
 import { TrashCleanupService } from './services/trash-cleanup.service';
+import { BacklinkService } from './services/backlink.service';
 import { StorageModule } from '../../integrations/storage/storage.module';
 import { CollaborationModule } from '../../collaboration/collaboration.module';
 import { WatcherModule } from '../watcher/watcher.module';
+import { TransclusionModule } from './transclusion/transclusion.module';
 
 @Module({
   controllers: [PageController],
-  providers: [PageService, PageHistoryService, TrashCleanupService],
+  providers: [
+    PageService,
+    PageHistoryService,
+    TrashCleanupService,
+    BacklinkService,
+  ],
   exports: [PageService, PageHistoryService],
-  imports: [StorageModule, CollaborationModule, WatcherModule],
+  imports: [
+    StorageModule,
+    CollaborationModule,
+    WatcherModule,
+    TransclusionModule,
+  ],
 })
 export class PageModule {}

apps/server/src/core/page/services/backlink.service.spec.ts

@@ -0,0 +1,163 @@
+import { Test } from '@nestjs/testing';
+import { BacklinkService } from './backlink.service';
+import { BacklinkRepo } from '@docmost/db/repos/backlink/backlink.repo';
+import { PagePermissionRepo } from '@docmost/db/repos/page/page-permission.repo';
+
+describe('BacklinkService.countByPageId', () => {
+  let service: BacklinkService;
+  let backlinkRepo: jest.Mocked<BacklinkRepo>;
+  let permissionRepo: jest.Mocked<PagePermissionRepo>;
+
+  const pageId = '00000000-0000-0000-0000-000000000001';
+  const userId = '00000000-0000-0000-0000-000000000099';
+
+  beforeEach(async () => {
+    const backlinkRepoMock: jest.Mocked<Partial<BacklinkRepo>> = {
+      findRelatedPageIds: jest.fn(),
+      findPagesByIdsPaginated: jest.fn(),
+    };
+    const permissionRepoMock: jest.Mocked<Partial<PagePermissionRepo>> = {
+      filterAccessiblePageIds: jest.fn(),
+    };
+
+    const module = await Test.createTestingModule({
+      providers: [
+        BacklinkService,
+        { provide: BacklinkRepo, useValue: backlinkRepoMock },
+        { provide: PagePermissionRepo, useValue: permissionRepoMock },
+      ],
+    }).compile();
+
+    service = module.get(BacklinkService);
+    backlinkRepo = module.get(BacklinkRepo) as jest.Mocked<BacklinkRepo>;
+    permissionRepo = module.get(
+      PagePermissionRepo,
+    ) as jest.Mocked<PagePermissionRepo>;
+  });
+
+  it('returns post-filter counts for both directions', async () => {
+    backlinkRepo.findRelatedPageIds.mockImplementation(async (_id, dir) =>
+      dir === 'incoming' ? ['a', 'b', 'c'] : ['x', 'y'],
+    );
+    permissionRepo.filterAccessiblePageIds.mockImplementation(
+      async ({ pageIds }) =>
+        pageIds.filter((id) => id !== 'b' && id !== 'y'),
+    );
+
+    const result = await service.countByPageId(pageId, userId);
+
+    expect(result).toEqual({ incoming: 2, outgoing: 1 });
+    expect(permissionRepo.filterAccessiblePageIds).toHaveBeenCalledWith({
+      pageIds: ['a', 'b', 'c'],
+      userId,
+    });
+    expect(permissionRepo.filterAccessiblePageIds).toHaveBeenCalledWith({
+      pageIds: ['x', 'y'],
+      userId,
+    });
+  });
+
+  it('skips the permission filter when there are no candidates', async () => {
+    backlinkRepo.findRelatedPageIds.mockResolvedValue([]);
+    permissionRepo.filterAccessiblePageIds.mockResolvedValue([]);
+
+    const result = await service.countByPageId(pageId, userId);
+
+    expect(result).toEqual({ incoming: 0, outgoing: 0 });
+    expect(permissionRepo.filterAccessiblePageIds).not.toHaveBeenCalled();
+  });
+
+  it('passes the userId to findRelatedPageIds so the repo can apply space membership filtering', async () => {
+    backlinkRepo.findRelatedPageIds.mockResolvedValue([]);
+
+    await service.countByPageId(pageId, userId);
+
+    expect(backlinkRepo.findRelatedPageIds).toHaveBeenCalledWith(
+      pageId,
+      'incoming',
+      userId,
+    );
+    expect(backlinkRepo.findRelatedPageIds).toHaveBeenCalledWith(
+      pageId,
+      'outgoing',
+      userId,
+    );
+  });
+});
+
+describe('BacklinkService.findByPageId', () => {
+  let service: BacklinkService;
+  let backlinkRepo: jest.Mocked<BacklinkRepo>;
+  let permissionRepo: jest.Mocked<PagePermissionRepo>;
+
+  const pageId = '00000000-0000-0000-0000-000000000001';
+  const userId = '00000000-0000-0000-0000-000000000099';
+
+  beforeEach(async () => {
+    const backlinkRepoMock: jest.Mocked<Partial<BacklinkRepo>> = {
+      findRelatedPageIds: jest.fn(),
+      findPagesByIdsPaginated: jest.fn(),
+    };
+    const permissionRepoMock: jest.Mocked<Partial<PagePermissionRepo>> = {
+      filterAccessiblePageIds: jest.fn(),
+    };
+
+    const module = await Test.createTestingModule({
+      providers: [
+        BacklinkService,
+        { provide: BacklinkRepo, useValue: backlinkRepoMock },
+        { provide: PagePermissionRepo, useValue: permissionRepoMock },
+      ],
+    }).compile();
+
+    service = module.get(BacklinkService);
+    backlinkRepo = module.get(BacklinkRepo) as jest.Mocked<BacklinkRepo>;
+    permissionRepo = module.get(
+      PagePermissionRepo,
+    ) as jest.Mocked<PagePermissionRepo>;
+  });
+
+  it('passes filtered ids through to the paginated repo call', async () => {
+    backlinkRepo.findRelatedPageIds.mockResolvedValue(['a', 'b']);
+    permissionRepo.filterAccessiblePageIds.mockResolvedValue(['a']);
+    backlinkRepo.findPagesByIdsPaginated.mockResolvedValue({
+      items: [],
+      meta: {
+        limit: 20,
+        hasNextPage: false,
+        hasPrevPage: false,
+        nextCursor: null,
+        prevCursor: null,
+      },
+    } as any);
+
+    await service.findByPageId(pageId, 'incoming', userId, { limit: 20 } as any);
+
+    expect(backlinkRepo.findPagesByIdsPaginated).toHaveBeenCalledWith(
+      ['a'],
+      expect.objectContaining({ limit: 20 }),
+    );
+  });
+
+  it('hands an empty list to the repo when there are no accessible ids', async () => {
+    backlinkRepo.findRelatedPageIds.mockResolvedValue([]);
+    backlinkRepo.findPagesByIdsPaginated.mockResolvedValue({
+      items: [],
+      meta: {
+        limit: 20,
+        hasNextPage: false,
+        hasPrevPage: false,
+        nextCursor: null,
+        prevCursor: null,
+      },
+    } as any);
+
+    await service.findByPageId(pageId, 'incoming', userId, { limit: 20 } as any);
+
+    expect(backlinkRepo.findPagesByIdsPaginated).toHaveBeenCalledWith(
+      [],
+      expect.objectContaining({ limit: 20 }),
+    );
+    expect(permissionRepo.filterAccessiblePageIds).not.toHaveBeenCalled();
+  });
+});

apps/server/src/core/page/services/backlink.service.ts

@@ -0,0 +1,56 @@
+import { Injectable } from '@nestjs/common';
+import { BacklinkRepo } from '@docmost/db/repos/backlink/backlink.repo';
+import { PagePermissionRepo } from '@docmost/db/repos/page/page-permission.repo';
+import { PaginationOptions } from '@docmost/db/pagination/pagination-options';
+
+export type BacklinkDirection = 'incoming' | 'outgoing';
+
+@Injectable()
+export class BacklinkService {
+  constructor(
+    private readonly backlinkRepo: BacklinkRepo,
+    private readonly pagePermissionRepo: PagePermissionRepo,
+  ) {}
+
+  async countByPageId(
+    pageId: string,
+    userId: string,
+  ): Promise<{ incoming: number; outgoing: number }> {
+    const [incomingIds, outgoingIds] = await Promise.all([
+      this.accessibleRelatedIds(pageId, 'incoming', userId),
+      this.accessibleRelatedIds(pageId, 'outgoing', userId),
+    ]);
+    return { incoming: incomingIds.length, outgoing: outgoingIds.length };
+  }
+
+  async findByPageId(
+    pageId: string,
+    direction: BacklinkDirection,
+    userId: string,
+    pagination: PaginationOptions,
+  ) {
+    const accessibleIds = await this.accessibleRelatedIds(
+      pageId,
+      direction,
+      userId,
+    );
+    return this.backlinkRepo.findPagesByIdsPaginated(accessibleIds, pagination);
+  }
+
+  private async accessibleRelatedIds(
+    pageId: string,
+    direction: BacklinkDirection,
+    userId: string,
+  ): Promise<string[]> {
+    const candidateIds = await this.backlinkRepo.findRelatedPageIds(
+      pageId,
+      direction,
+      userId,
+    );
+    if (candidateIds.length === 0) return [];
+    return this.pagePermissionRepo.filterAccessiblePageIds({
+      pageIds: candidateIds,
+      userId,
+    });
+  }
+}

apps/server/src/core/page/services/page.service.ts

@@ -54,6 +54,7 @@ import {
 import { markdownToHtml } from '@docmost/editor-ext';
 import { WatcherService } from '../../watcher/watcher.service';
 import { sql } from 'kysely';
+import { TransclusionService } from '../transclusion/transclusion.service';
 
 @Injectable()
 export class PageService {
@@ -71,6 +72,7 @@ export class PageService {
     private eventEmitter: EventEmitter2,
     private collaborationGateway: CollaborationGateway,
     private readonly watcherService: WatcherService,
+    private readonly transclusionService: TransclusionService,
   ) {}
 
   async findById(
@@ -600,6 +602,17 @@ export class PageService {
             }
           }
 
+          // Remap transclusion-reference source pages to their copies when
+          // the source page is also being duplicated in the same operation.
+          if (node.type.name === 'transclusionReference') {
+            const sourcePageId = node.attrs.sourcePageId;
+            if (sourcePageId && pageMap.has(sourcePageId)) {
+              const mappedPage = pageMap.get(sourcePageId);
+              //@ts-ignore
+              node.attrs.sourcePageId = mappedPage.newPageId;
+            }
+          }
+
           // Update internal page links in link marks
           for (const mark of node.marks) {
             if (
@@ -659,6 +672,39 @@ export class PageService {
 
     await this.db.insertInto('pages').values(insertablePages).execute();
 
+    // Extract transclusions from every duplicated page and persist them in
+    // one statement. Duplication bypasses Yjs onStoreDocument; brand-new
+    // pages never have prior rows so we can skip the diff and just bulk-insert.
+    try {
+      await this.transclusionService.insertTransclusionsForPages(
+        insertablePages.map((p) => ({
+          id: p.id,
+          workspaceId: p.workspaceId,
+          content: p.content,
+        })),
+      );
+    } catch (err) {
+      this.logger.error(
+        'Failed to insert transclusions for duplicated pages',
+        err,
+      );
+    }
+
+    try {
+      await this.transclusionService.insertReferencesForPages(
+        insertablePages.map((p) => ({
+          id: p.id,
+          workspaceId: p.workspaceId,
+          content: p.content,
+        })),
+      );
+    } catch (err) {
+      this.logger.error(
+        'Failed to insert transclusion references for duplicated pages',
+        err,
+      );
+    }
+
     const insertedPageIds = insertablePages.map((page) => page.id);
     this.eventEmitter.emit(EventName.PAGE_CREATED, {
       pageIds: insertedPageIds,

apps/server/src/core/page/transclusion/dto/lookup.dto.ts

@@ -0,0 +1,26 @@
+import { Type } from 'class-transformer';
+import {
+  ArrayMaxSize,
+  IsArray,
+  IsString,
+  IsUUID,
+  MaxLength,
+  ValidateNested,
+} from 'class-validator';
+
+export class LookupReferenceDto {
+  @IsUUID()
+  sourcePageId!: string;
+
+  @IsString()
+  @MaxLength(36)
+  transclusionId!: string;
+}
+
+export class LookupDto {
+  @IsArray()
+  @ArrayMaxSize(50)
+  @ValidateNested({ each: true })
+  @Type(() => LookupReferenceDto)
+  references!: LookupReferenceDto[];
+}

apps/server/src/core/page/transclusion/dto/references.dto.ts

@@ -0,0 +1,9 @@
+import { IsString, IsUUID } from 'class-validator';
+
+export class ReferencesDto {
+  @IsUUID()
+  sourcePageId!: string;
+
+  @IsString()
+  transclusionId!: string;
+}

apps/server/src/core/page/transclusion/dto/unsync-reference.dto.ts

@@ -0,0 +1,12 @@
+import { IsString, IsUUID } from 'class-validator';
+
+export class UnsyncReferenceDto {
+  @IsUUID()
+  referencePageId!: string;
+
+  @IsUUID()
+  sourcePageId!: string;
+
+  @IsString()
+  transclusionId!: string;
+}

apps/server/src/core/page/transclusion/spec/transclusion-prosemirror.util.spec.ts

@@ -0,0 +1,240 @@
+import {
+  collectReferencesFromPmJson,
+  collectTransclusionsFromPmJson,
+} from '../utils/transclusion-prosemirror.util';
+
+describe('collectTransclusionsFromPmJson', () => {
+  it('returns [] for null/undefined doc', () => {
+    expect(collectTransclusionsFromPmJson(null)).toEqual([]);
+    expect(collectTransclusionsFromPmJson(undefined)).toEqual([]);
+  });
+
+  it('returns [] for a doc with no transclusion nodes', () => {
+    const doc = {
+      type: 'doc',
+      content: [{ type: 'paragraph', content: [{ type: 'text', text: 'hi' }] }],
+    };
+    expect(collectTransclusionsFromPmJson(doc)).toEqual([]);
+  });
+
+  it('extracts a top-level transclusion with id and content', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'abc123' },
+          content: [{ type: 'paragraph', content: [{ type: 'text', text: 'Body' }] }],
+        },
+      ],
+    };
+    const got = collectTransclusionsFromPmJson(doc);
+    expect(got).toHaveLength(1);
+    expect(got[0].transclusionId).toBe('abc123');
+    expect(got[0].content).toEqual({
+      type: 'doc',
+      content: [{ type: 'paragraph', content: [{ type: 'text', text: 'Body' }] }],
+    });
+  });
+
+  it('skips transclusion nodes with no id (transient before UniqueID assigns one)', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        { type: 'transclusionSource', attrs: {}, content: [{ type: 'paragraph' }] },
+      ],
+    };
+    expect(collectTransclusionsFromPmJson(doc)).toEqual([]);
+  });
+
+  it('returns multiple top-level transclusions', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        { type: 'transclusionSource', attrs: { id: 'a' }, content: [{ type: 'paragraph' }] },
+        { type: 'transclusionSource', attrs: { id: 'b' }, content: [{ type: 'paragraph' }] },
+      ],
+    };
+    const got = collectTransclusionsFromPmJson(doc);
+    expect(got.map((e) => e.transclusionId)).toEqual(['a', 'b']);
+  });
+
+  it('does not recurse into a nested transclusion (transclusion cannot contain transclusion per schema, but be defensive)', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'outer' },
+          content: [
+            {
+              type: 'transclusionSource',
+              attrs: { id: 'inner' },
+              content: [{ type: 'paragraph' }],
+            },
+          ],
+        },
+      ],
+    };
+    const got = collectTransclusionsFromPmJson(doc);
+    expect(got.map((e) => e.transclusionId)).toEqual(['outer']);
+  });
+
+  it('finds transclusions nested inside other block containers (e.g. column)', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'column',
+          content: [
+            { type: 'transclusionSource', attrs: { id: 'inCol' }, content: [{ type: 'paragraph' }] },
+          ],
+        },
+      ],
+    };
+    expect(collectTransclusionsFromPmJson(doc).map((e) => e.transclusionId)).toEqual([
+      'inCol',
+    ]);
+  });
+
+  it('uses the last id when duplicate ids appear (later wins, deterministic)', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'dup' },
+          content: [{ type: 'paragraph', content: [{ type: 'text', text: 'first' }] }],
+        },
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'dup' },
+          content: [{ type: 'paragraph', content: [{ type: 'text', text: 'second' }] }],
+        },
+      ],
+    };
+    const got = collectTransclusionsFromPmJson(doc);
+    expect(got).toHaveLength(1);
+    expect(got[0].content).toEqual({
+      type: 'doc',
+      content: [{ type: 'paragraph', content: [{ type: 'text', text: 'second' }] }],
+    });
+  });
+});
+
+describe('collectReferencesFromPmJson', () => {
+  it('returns [] for null/undefined doc', () => {
+    expect(collectReferencesFromPmJson(null)).toEqual([]);
+    expect(collectReferencesFromPmJson(undefined)).toEqual([]);
+  });
+
+  it('returns [] for a doc with no transclusionReference nodes', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        { type: 'paragraph', content: [{ type: 'text', text: 'hi' }] },
+      ],
+    };
+    expect(collectReferencesFromPmJson(doc)).toEqual([]);
+  });
+
+  it('extracts a top-level reference', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionReference',
+          attrs: { sourcePageId: 'p1', transclusionId: 'e1' },
+        },
+      ],
+    };
+    expect(collectReferencesFromPmJson(doc)).toEqual([
+      { sourcePageId: 'p1', transclusionId: 'e1' },
+    ]);
+  });
+
+  it('skips references missing sourcePageId or transclusionId', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        { type: 'transclusionReference', attrs: { transclusionId: 'e1' } },
+        { type: 'transclusionReference', attrs: { sourcePageId: 'p1' } },
+        { type: 'transclusionReference', attrs: {} },
+      ],
+    };
+    expect(collectReferencesFromPmJson(doc)).toEqual([]);
+  });
+
+  it('finds references nested in other block containers (column, callout, etc.)', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'column',
+          content: [
+            {
+              type: 'transclusionReference',
+              attrs: { sourcePageId: 'p1', transclusionId: 'e1' },
+            },
+          ],
+        },
+        {
+          type: 'callout',
+          content: [
+            {
+              type: 'transclusionReference',
+              attrs: { sourcePageId: 'p2', transclusionId: 'e2' },
+            },
+          ],
+        },
+      ],
+    };
+    expect(collectReferencesFromPmJson(doc)).toEqual([
+      { sourcePageId: 'p1', transclusionId: 'e1' },
+      { sourcePageId: 'p2', transclusionId: 'e2' },
+    ]);
+  });
+
+  it('does not recurse into a transclusion source (schema forbids references inside)', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'src1' },
+          content: [
+            {
+              type: 'transclusionReference',
+              attrs: { sourcePageId: 'p1', transclusionId: 'e1' },
+            },
+          ],
+        },
+      ],
+    };
+    expect(collectReferencesFromPmJson(doc)).toEqual([]);
+  });
+
+  it('dedupes identical (sourcePageId, transclusionId) pairs', () => {
+    const doc = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionReference',
+          attrs: { sourcePageId: 'p1', transclusionId: 'e1' },
+        },
+        {
+          type: 'transclusionReference',
+          attrs: { sourcePageId: 'p1', transclusionId: 'e1' },
+        },
+        {
+          type: 'transclusionReference',
+          attrs: { sourcePageId: 'p2', transclusionId: 'e2' },
+        },
+      ],
+    };
+    expect(collectReferencesFromPmJson(doc)).toEqual([
+      { sourcePageId: 'p1', transclusionId: 'e1' },
+      { sourcePageId: 'p2', transclusionId: 'e2' },
+    ]);
+  });
+});

apps/server/src/core/page/transclusion/spec/transclusion-unsync.util.spec.ts

@@ -0,0 +1,161 @@
+import {
+  rewriteAttachmentsForUnsync,
+  type AttachmentRewritePlan,
+} from '../utils/transclusion-unsync.util';
+
+describe('rewriteAttachmentsForUnsync', () => {
+  const fixedIds = (() => {
+    let i = 0;
+    return () => `new-${++i}`;
+  });
+
+  it('returns content unchanged when no attachment nodes are present', () => {
+    const content = {
+      type: 'doc',
+      content: [
+        { type: 'paragraph', content: [{ type: 'text', text: 'hello' }] },
+      ],
+    };
+    const r = rewriteAttachmentsForUnsync(content, fixedIds());
+    expect(r.content).toEqual(content);
+    expect(r.copies).toEqual([]);
+  });
+
+  it('rewrites attachmentId and src on a single image node', () => {
+    const oldId = '11111111-1111-1111-1111-111111111111';
+    const content = {
+      type: 'doc',
+      content: [
+        {
+          type: 'image',
+          attrs: {
+            attachmentId: oldId,
+            src: `/api/files/${oldId}/cat.png`,
+          },
+        },
+      ],
+    };
+    const gen = fixedIds();
+    const r = rewriteAttachmentsForUnsync(content, gen);
+
+    expect(r.copies).toHaveLength(1);
+    const plan: AttachmentRewritePlan = r.copies[0];
+    expect(plan.oldAttachmentId).toBe(oldId);
+    expect(plan.newAttachmentId).toBe('new-1');
+
+    const img = (r.content as any).content[0];
+    expect(img.attrs.attachmentId).toBe('new-1');
+    expect(img.attrs.src).toBe('/api/files/new-1/cat.png');
+  });
+
+  it('rewrites every attachment node type (image, video, audio, attachment, drawio, excalidraw, pdf)', () => {
+    const types = [
+      'image',
+      'video',
+      'audio',
+      'attachment',
+      'drawio',
+      'excalidraw',
+      'pdf',
+    ] as const;
+    const content = {
+      type: 'doc',
+      content: types.map((t, i) => ({
+        type: t,
+        attrs: {
+          attachmentId: `old-${i}`,
+          src: `/api/files/old-${i}/file`,
+        },
+      })),
+    };
+    const r = rewriteAttachmentsForUnsync(content, fixedIds());
+    expect(r.copies).toHaveLength(types.length);
+    expect((r.content as any).content.map((n: any) => n.attrs.attachmentId)).toEqual(
+      Array.from({ length: types.length }, (_, i) => `new-${i + 1}`),
+    );
+  });
+
+  it('reuses one new id per old attachmentId across nodes (dedupe)', () => {
+    const shared = 'shared-old';
+    const content = {
+      type: 'doc',
+      content: [
+        {
+          type: 'image',
+          attrs: {
+            attachmentId: shared,
+            src: `/api/files/${shared}/a.png`,
+          },
+        },
+        {
+          type: 'image',
+          attrs: {
+            attachmentId: shared,
+            src: `/api/files/${shared}/a.png`,
+          },
+        },
+      ],
+    };
+    const r = rewriteAttachmentsForUnsync(content, fixedIds());
+    expect(r.copies).toHaveLength(1);
+    expect(r.copies[0].oldAttachmentId).toBe(shared);
+    const newId = r.copies[0].newAttachmentId;
+    expect((r.content as any).content[0].attrs.attachmentId).toBe(newId);
+    expect((r.content as any).content[1].attrs.attachmentId).toBe(newId);
+  });
+
+  it('does not mutate the input content object', () => {
+    const content = {
+      type: 'doc',
+      content: [
+        {
+          type: 'image',
+          attrs: { attachmentId: 'old-x', src: '/api/files/old-x/x.png' },
+        },
+      ],
+    };
+    const snapshot = JSON.parse(JSON.stringify(content));
+    rewriteAttachmentsForUnsync(content, fixedIds());
+    expect(content).toEqual(snapshot);
+  });
+
+  it('skips nodes whose attachmentId is missing or not a uuid-shaped string', () => {
+    const content = {
+      type: 'doc',
+      content: [
+        { type: 'image', attrs: {} },
+        { type: 'image', attrs: { attachmentId: '' } },
+      ],
+    };
+    const r = rewriteAttachmentsForUnsync(content, fixedIds());
+    expect(r.copies).toEqual([]);
+    expect(r.content).toEqual(content);
+  });
+
+  it('recurses into nested containers (column, callout)', () => {
+    const oldId = 'old-nested';
+    const content = {
+      type: 'doc',
+      content: [
+        {
+          type: 'callout',
+          content: [
+            {
+              type: 'image',
+              attrs: {
+                attachmentId: oldId,
+                src: `/api/files/${oldId}/x.png`,
+              },
+            },
+          ],
+        },
+      ],
+    };
+    const r = rewriteAttachmentsForUnsync(content, fixedIds());
+    expect(r.copies).toHaveLength(1);
+    const newId = r.copies[0].newAttachmentId;
+    const inner = (r.content as any).content[0].content[0];
+    expect(inner.attrs.attachmentId).toBe(newId);
+    expect(inner.attrs.src).toBe(`/api/files/${newId}/x.png`);
+  });
+});

apps/server/src/core/page/transclusion/spec/transclusion.controller.spec.ts

@@ -0,0 +1,48 @@
+import { Test } from '@nestjs/testing';
+import { TransclusionController } from '../transclusion.controller';
+import { TransclusionService } from '../transclusion.service';
+import { JwtAuthGuard } from '../../../../common/guards/jwt-auth.guard';
+
+describe('TransclusionController.lookup', () => {
+  let controller: TransclusionController;
+  let service: jest.Mocked<TransclusionService>;
+
+  beforeEach(async () => {
+    service = {
+      lookup: jest.fn(),
+      listReferences: jest.fn(),
+      unsyncReference: jest.fn(),
+    } as any;
+
+    const module = await Test.createTestingModule({
+      controllers: [TransclusionController],
+      providers: [{ provide: TransclusionService, useValue: service }],
+    })
+      .overrideGuard(JwtAuthGuard)
+      .useValue({ canActivate: () => true })
+      .compile();
+
+    controller = module.get(TransclusionController);
+  });
+
+  const user = { id: 'u1', workspaceId: 'w1' } as any;
+  const ref = { sourcePageId: 'p1', transclusionId: 'e1' };
+
+  it('passes the references, viewer id and workspace id through to the service and returns its result', async () => {
+    service.lookup.mockResolvedValue({
+      items: [
+        {
+          sourcePageId: 'p1',
+          transclusionId: 'e1',
+          content: { type: 'doc' },
+          sourceUpdatedAt: new Date(),
+        },
+      ],
+    } as any);
+
+    const out = await controller.lookup({ references: [ref] } as any, user);
+    expect(out.items[0]).not.toHaveProperty('status');
+    expect((out.items[0] as any).content).toEqual({ type: 'doc' });
+    expect(service.lookup).toHaveBeenCalledWith([ref], 'u1', 'w1');
+  });
+});

apps/server/src/core/page/transclusion/spec/transclusion.service.spec.ts

@@ -0,0 +1,320 @@
+import { Test } from '@nestjs/testing';
+import { TransclusionService } from '../transclusion.service';
+import { PageTransclusionsRepo } from '@docmost/db/repos/page-transclusions/page-transclusions.repo';
+import { PageTransclusionReferencesRepo } from '@docmost/db/repos/page-transclusions/page-transclusion-references.repo';
+import { PageRepo } from '@docmost/db/repos/page/page.repo';
+import { PagePermissionRepo } from '@docmost/db/repos/page/page-permission.repo';
+import { AttachmentRepo } from '@docmost/db/repos/attachment/attachment.repo';
+import { StorageService } from '../../../../integrations/storage/storage.service';
+import { PageAccessService } from '../../page-access/page-access.service';
+
+describe('TransclusionService.syncPageTransclusions', () => {
+  let service: TransclusionService;
+  let repo: jest.Mocked<PageTransclusionsRepo>;
+
+  beforeEach(async () => {
+    const mockRepo: jest.Mocked<Partial<PageTransclusionsRepo>> = {
+      findByPageId: jest.fn(),
+      insert: jest.fn(),
+      update: jest.fn(),
+      deleteByPageAndTransclusionIds: jest.fn(),
+    };
+    const module = await Test.createTestingModule({
+      providers: [
+        TransclusionService,
+        { provide: PageTransclusionsRepo, useValue: mockRepo },
+        { provide: PageTransclusionReferencesRepo, useValue: {} },
+        { provide: PageRepo, useValue: {} },
+        { provide: PagePermissionRepo, useValue: {} },
+        { provide: AttachmentRepo, useValue: {} },
+        { provide: StorageService, useValue: {} },
+        { provide: PageAccessService, useValue: {} },
+      ],
+    }).compile();
+    service = module.get(TransclusionService);
+    repo = module.get(PageTransclusionsRepo);
+  });
+
+  const pageId = '00000000-0000-0000-0000-000000000001';
+  const workspaceId = '00000000-0000-0000-0000-000000000099';
+
+  it('inserts new transclusions that did not exist before', async () => {
+    repo.findByPageId.mockResolvedValue([]);
+    const pm = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'a' },
+          content: [{ type: 'paragraph' }],
+        },
+      ],
+    };
+
+    const result = await service.syncPageTransclusions(pageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 1, updated: 0, deleted: 0 });
+    expect(repo.insert).toHaveBeenCalledTimes(1);
+    expect(repo.insert).toHaveBeenCalledWith(
+      expect.objectContaining({
+        pageId,
+        transclusionId: 'a',
+      }),
+      undefined,
+    );
+    expect(repo.update).not.toHaveBeenCalled();
+    expect(repo.deleteByPageAndTransclusionIds).not.toHaveBeenCalled();
+  });
+
+  it('updates transclusions whose content changed', async () => {
+    repo.findByPageId.mockResolvedValue([
+      {
+        id: 'row1',
+        pageId,
+        transclusionId: 'a',
+        content: { type: 'doc', content: [{ type: 'paragraph' }] },
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      } as any,
+    ]);
+    const newContent = {
+      type: 'doc',
+      content: [
+        { type: 'paragraph', content: [{ type: 'text', text: 'X' }] },
+      ],
+    };
+    const pm = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'a' },
+          content: newContent.content,
+        },
+      ],
+    };
+
+    const result = await service.syncPageTransclusions(pageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 0, updated: 1, deleted: 0 });
+    expect(repo.update).toHaveBeenCalledWith(
+      pageId,
+      'a',
+      expect.objectContaining({ content: newContent }),
+      undefined,
+    );
+  });
+
+  it('skips update when content is unchanged', async () => {
+    const sameContent = {
+      type: 'doc',
+      content: [{ type: 'paragraph' }],
+    };
+    repo.findByPageId.mockResolvedValue([
+      {
+        id: 'row1',
+        pageId,
+        transclusionId: 'a',
+        content: sameContent,
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      } as any,
+    ]);
+    const pm = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 'a' },
+          content: sameContent.content,
+        },
+      ],
+    };
+
+    const result = await service.syncPageTransclusions(pageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 0, updated: 0, deleted: 0 });
+    expect(repo.update).not.toHaveBeenCalled();
+  });
+
+  it('deletes transclusions that no longer appear in the doc', async () => {
+    repo.findByPageId.mockResolvedValue([
+      {
+        id: 'r',
+        pageId,
+        transclusionId: 'gone',
+        content: { type: 'doc', content: [] },
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      } as any,
+    ]);
+    const pm = { type: 'doc', content: [{ type: 'paragraph' }] };
+
+    const result = await service.syncPageTransclusions(pageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 0, updated: 0, deleted: 1 });
+    expect(repo.deleteByPageAndTransclusionIds).toHaveBeenCalledWith(
+      pageId,
+      ['gone'],
+      undefined,
+    );
+  });
+
+  it('handles empty doc → noop', async () => {
+    repo.findByPageId.mockResolvedValue([]);
+    const result = await service.syncPageTransclusions(pageId, workspaceId, null);
+    expect(result).toEqual({ inserted: 0, updated: 0, deleted: 0 });
+    expect(repo.insert).not.toHaveBeenCalled();
+    expect(repo.update).not.toHaveBeenCalled();
+    expect(repo.deleteByPageAndTransclusionIds).not.toHaveBeenCalled();
+  });
+});
+
+describe('TransclusionService.syncPageReferences', () => {
+  let service: TransclusionService;
+  let refRepo: jest.Mocked<PageTransclusionReferencesRepo>;
+
+  beforeEach(async () => {
+    const mockTransclusionsRepo: Partial<PageTransclusionsRepo> = {};
+    const mockRefRepo: jest.Mocked<Partial<PageTransclusionReferencesRepo>> = {
+      findByReferencePageId: jest.fn(),
+      insertMany: jest.fn(),
+      deleteByReferenceAndKeys: jest.fn(),
+    };
+    const module = await Test.createTestingModule({
+      providers: [
+        TransclusionService,
+        { provide: PageTransclusionsRepo, useValue: mockTransclusionsRepo },
+        { provide: PageTransclusionReferencesRepo, useValue: mockRefRepo },
+        { provide: PageRepo, useValue: {} },
+        { provide: PagePermissionRepo, useValue: {} },
+        { provide: AttachmentRepo, useValue: {} },
+        { provide: StorageService, useValue: {} },
+        { provide: PageAccessService, useValue: {} },
+      ],
+    }).compile();
+    service = module.get(TransclusionService);
+    refRepo = module.get(PageTransclusionReferencesRepo);
+  });
+
+  const referencePageId = '00000000-0000-0000-0000-000000000001';
+  const workspaceId = '00000000-0000-0000-0000-000000000099';
+
+  it('inserts new loose references, no deletes when none existed', async () => {
+    refRepo.findByReferencePageId.mockResolvedValue([]);
+    const pm = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionReference',
+          attrs: { sourcePageId: 'p1', transclusionId: 'e1' },
+        },
+        {
+          type: 'transclusionReference',
+          attrs: { sourcePageId: 'p2', transclusionId: 'e2' },
+        },
+      ],
+    };
+
+    const result = await service.syncPageReferences(referencePageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 2, deleted: 0 });
+    expect(refRepo.insertMany).toHaveBeenCalledWith(
+      [
+        {
+          workspaceId,
+          referencePageId,
+          sourcePageId: 'p1',
+          transclusionId: 'e1',
+        },
+        {
+          workspaceId,
+          referencePageId,
+          sourcePageId: 'p2',
+          transclusionId: 'e2',
+        },
+      ],
+      undefined,
+    );
+    expect(refRepo.deleteByReferenceAndKeys).not.toHaveBeenCalled();
+  });
+
+  it('ignores references nested inside a source (schema-forbidden)', async () => {
+    refRepo.findByReferencePageId.mockResolvedValue([]);
+    const pm = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionSource',
+          attrs: { id: 's1' },
+          content: [
+            {
+              type: 'transclusionReference',
+              attrs: { sourcePageId: 'p2', transclusionId: 'e2' },
+            },
+          ],
+        },
+      ],
+    };
+
+    const result = await service.syncPageReferences(referencePageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 0, deleted: 0 });
+    expect(refRepo.insertMany).not.toHaveBeenCalled();
+  });
+
+  it('deletes references that no longer appear', async () => {
+    refRepo.findByReferencePageId.mockResolvedValue([
+      {
+        id: 'r1',
+        referencePageId,
+        sourcePageId: 'p1',
+        transclusionId: 'e1',
+        createdAt: new Date(),
+      } as any,
+    ]);
+    const pm = { type: 'doc', content: [{ type: 'paragraph' }] };
+
+    const result = await service.syncPageReferences(referencePageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 0, deleted: 1 });
+    expect(refRepo.deleteByReferenceAndKeys).toHaveBeenCalledWith(
+      referencePageId,
+      [
+        {
+          sourcePageId: 'p1',
+          transclusionId: 'e1',
+        },
+      ],
+      undefined,
+    );
+    expect(refRepo.insertMany).not.toHaveBeenCalled();
+  });
+
+  it('is a no-op when desired matches existing exactly', async () => {
+    refRepo.findByReferencePageId.mockResolvedValue([
+      {
+        id: 'r',
+        referencePageId,
+        sourcePageId: 'p1',
+        transclusionId: 'e1',
+        createdAt: new Date(),
+      } as any,
+    ]);
+    const pm = {
+      type: 'doc',
+      content: [
+        {
+          type: 'transclusionReference',
+          attrs: { sourcePageId: 'p1', transclusionId: 'e1' },
+        },
+      ],
+    };
+
+    const result = await service.syncPageReferences(referencePageId, workspaceId, pm);
+
+    expect(result).toEqual({ inserted: 0, deleted: 0 });
+    expect(refRepo.insertMany).not.toHaveBeenCalled();
+    expect(refRepo.deleteByReferenceAndKeys).not.toHaveBeenCalled();
+  });
+});

apps/server/src/core/page/transclusion/transclusion.controller.ts

@@ -0,0 +1,59 @@
+import {
+  Body,
+  Controller,
+  HttpCode,
+  HttpStatus,
+  Post,
+  UseGuards,
+} from '@nestjs/common';
+import { JwtAuthGuard } from '../../../common/guards/jwt-auth.guard';
+import { AuthUser } from '../../../common/decorators/auth-user.decorator';
+import { User } from '@docmost/db/types/entity.types';
+import { TransclusionService } from './transclusion.service';
+import { LookupDto } from './dto/lookup.dto';
+import { ReferencesDto } from './dto/references.dto';
+import { UnsyncReferenceDto } from './dto/unsync-reference.dto';
+
+@UseGuards(JwtAuthGuard)
+@Controller('pages/transclusion')
+export class TransclusionController {
+  constructor(private readonly transclusionService: TransclusionService) {}
+
+  @HttpCode(HttpStatus.OK)
+  @Post('lookup')
+  async lookup(@Body() dto: LookupDto, @AuthUser() user: User) {
+    return this.transclusionService.lookup(
+      dto.references,
+      user.id,
+      user.workspaceId,
+    );
+  }
+
+  @HttpCode(HttpStatus.OK)
+  @Post('references')
+  async references(
+    @Body() dto: ReferencesDto,
+    @AuthUser() user: User,
+  ) {
+    return this.transclusionService.listReferences({
+      sourcePageId: dto.sourcePageId,
+      transclusionId: dto.transclusionId,
+      viewerUserId: user.id,
+      workspaceId: user.workspaceId,
+    });
+  }
+
+  @HttpCode(HttpStatus.OK)
+  @Post('unsync-reference')
+  async unsyncReference(
+    @Body() dto: UnsyncReferenceDto,
+    @AuthUser() user: User,
+  ) {
+    return this.transclusionService.unsyncReference(
+      dto.referencePageId,
+      dto.sourcePageId,
+      dto.transclusionId,
+      user,
+    );
+  }
+}

apps/server/src/core/page/transclusion/transclusion.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { TransclusionController } from './transclusion.controller';
+import { TransclusionService } from './transclusion.service';
+
+@Module({
+  controllers: [TransclusionController],
+  providers: [TransclusionService],
+  exports: [TransclusionService],
+})
+export class TransclusionModule {}

apps/server/src/core/page/transclusion/transclusion.service.ts

@@ -0,0 +1,478 @@
+import {
+  Injectable,
+  Logger,
+  ForbiddenException,
+  NotFoundException,
+} from '@nestjs/common';
+import { isDeepStrictEqual } from 'node:util';
+import { v7 as uuid7 } from 'uuid';
+import { KyselyTransaction } from '@docmost/db/types/kysely.types';
+import { PageTransclusionsRepo } from '@docmost/db/repos/page-transclusions/page-transclusions.repo';
+import { PageTransclusionReferencesRepo } from '@docmost/db/repos/page-transclusions/page-transclusion-references.repo';
+import { PageRepo } from '@docmost/db/repos/page/page.repo';
+import { PagePermissionRepo } from '@docmost/db/repos/page/page-permission.repo';
+import { AttachmentRepo } from '@docmost/db/repos/attachment/attachment.repo';
+import { StorageService } from '../../../integrations/storage/storage.service';
+import {
+  collectReferencesFromPmJson,
+  collectTransclusionsFromPmJson,
+} from './utils/transclusion-prosemirror.util';
+import { rewriteAttachmentsForUnsync } from './utils/transclusion-unsync.util';
+import { TransclusionLookup } from './transclusion.types';
+import { Page, User } from '@docmost/db/types/entity.types';
+import { PageAccessService } from '../page-access/page-access.service';
+
+type ReferencingPageInfo = {
+  id: string;
+  slugId: string;
+  title: string | null;
+  icon: string | null;
+  spaceId: string;
+  spaceSlug: string | null;
+};
+
+@Injectable()
+export class TransclusionService {
+  private readonly logger = new Logger(TransclusionService.name);
+
+  constructor(
+    private readonly pageTransclusionsRepo: PageTransclusionsRepo,
+    private readonly pageTransclusionReferencesRepo: PageTransclusionReferencesRepo,
+    private readonly pageRepo: PageRepo,
+    private readonly pagePermissionRepo: PagePermissionRepo,
+    private readonly attachmentRepo: AttachmentRepo,
+    private readonly storageService: StorageService,
+    private readonly pageAccessService: PageAccessService,
+  ) {}
+
+  async syncPageTransclusions(
+    pageId: string,
+    workspaceId: string,
+    pmJson: unknown,
+    trx?: KyselyTransaction,
+  ): Promise<{ inserted: number; updated: number; deleted: number }> {
+    const desired = collectTransclusionsFromPmJson(pmJson);
+    const desiredById = new Map(desired.map((d) => [d.transclusionId, d]));
+
+    const existing = await this.pageTransclusionsRepo.findByPageId(pageId, trx);
+    const existingById = new Map(existing.map((e) => [e.transclusionId, e]));
+
+    let inserted = 0;
+    let updated = 0;
+    let deleted = 0;
+
+    for (const d of desired) {
+      const prev = existingById.get(d.transclusionId);
+      if (!prev) {
+        await this.pageTransclusionsRepo.insert(
+          {
+            workspaceId,
+            pageId,
+            transclusionId: d.transclusionId,
+            content: d.content as any,
+          },
+          trx,
+        );
+        inserted += 1;
+        continue;
+      }
+
+      const contentChanged = !isDeepStrictEqual(prev.content, d.content);
+      if (contentChanged) {
+        await this.pageTransclusionsRepo.update(
+          pageId,
+          d.transclusionId,
+          { content: d.content as any },
+          trx,
+        );
+        updated += 1;
+      }
+    }
+
+    const removedIds = existing
+      .filter((e) => !desiredById.has(e.transclusionId))
+      .map((e) => e.transclusionId);
+    if (removedIds.length > 0) {
+      await this.pageTransclusionsRepo.deleteByPageAndTransclusionIds(
+        pageId,
+        removedIds,
+        trx,
+      );
+      deleted = removedIds.length;
+    }
+
+    return { inserted, updated, deleted };
+  }
+
+  async syncPageReferences(
+    referencePageId: string,
+    workspaceId: string,
+    pmJson: unknown,
+    trx?: KyselyTransaction,
+  ): Promise<{ inserted: number; deleted: number }> {
+    const desired = collectReferencesFromPmJson(pmJson);
+    const keyOf = (s: {
+      sourcePageId: string;
+      transclusionId: string;
+    }) => `${s.sourcePageId}::${s.transclusionId}`;
+    const desiredKeys = new Set(desired.map(keyOf));
+
+    const existing = await this.pageTransclusionReferencesRepo.findByReferencePageId(
+      referencePageId,
+      trx,
+    );
+    const existingKeys = new Set(existing.map(keyOf));
+
+    const toInsert = desired
+      .filter((d) => !existingKeys.has(keyOf(d)))
+      .map((d) => ({
+        workspaceId,
+        referencePageId,
+        sourcePageId: d.sourcePageId,
+        transclusionId: d.transclusionId,
+      }));
+
+    const toDelete = existing
+      .filter((e) => !desiredKeys.has(keyOf(e)))
+      .map((e) => ({
+        sourcePageId: e.sourcePageId,
+        transclusionId: e.transclusionId,
+      }));
+
+    if (toInsert.length > 0) {
+      await this.pageTransclusionReferencesRepo.insertMany(toInsert, trx);
+    }
+    if (toDelete.length > 0) {
+      await this.pageTransclusionReferencesRepo.deleteByReferenceAndKeys(
+        referencePageId,
+        toDelete,
+        trx,
+      );
+    }
+
+    return {
+      inserted: toInsert.length,
+      deleted: toDelete.length,
+    };
+  }
+
+  /**
+   * Extract transclusions from each page's PM JSON and bulk-insert into
+   * `page_transclusions` in a single statement. Intended for brand-new pages
+   * (e.g. duplication, import) where there is nothing to diff against.
+   */
+  async insertTransclusionsForPages(
+    pages: Array<{ id: string; workspaceId: string; content: unknown }>,
+    trx?: KyselyTransaction,
+  ): Promise<{ inserted: number }> {
+    const rows: Parameters<PageTransclusionsRepo['insertMany']>[0] = [];
+    for (const page of pages) {
+      const snapshots = collectTransclusionsFromPmJson(page.content);
+      for (const s of snapshots) {
+        rows.push({
+          workspaceId: page.workspaceId,
+          pageId: page.id,
+          transclusionId: s.transclusionId,
+          content: s.content as any,
+        });
+      }
+    }
+    if (rows.length === 0) return { inserted: 0 };
+    await this.pageTransclusionsRepo.insertMany(rows, trx);
+    return { inserted: rows.length };
+  }
+
+  /**
+   * Walk each page's PM JSON for `transclusionReference` nodes and bulk-insert
+   * one row per `(referencePage, source, target)`. For brand-new pages
+   * (duplication, import) where there is nothing to diff against.
+   */
+  async insertReferencesForPages(
+    pages: Array<{ id: string; workspaceId: string; content: unknown }>,
+    trx?: KyselyTransaction,
+  ): Promise<{ inserted: number }> {
+    const rows: Array<{
+      workspaceId: string;
+      referencePageId: string;
+      sourcePageId: string;
+      transclusionId: string;
+    }> = [];
+    for (const page of pages) {
+      const refs = collectReferencesFromPmJson(page.content);
+      for (const r of refs) {
+        rows.push({
+          workspaceId: page.workspaceId,
+          referencePageId: page.id,
+          sourcePageId: r.sourcePageId,
+          transclusionId: r.transclusionId,
+        });
+      }
+    }
+    if (rows.length === 0) return { inserted: 0 };
+    await this.pageTransclusionReferencesRepo.insertMany(rows, trx);
+    return { inserted: rows.length };
+  }
+
+  async lookup(
+    references: Array<{ sourcePageId: string; transclusionId: string }>,
+    viewerUserId: string,
+    workspaceId: string,
+  ): Promise<{ items: TransclusionLookup[] }> {
+    if (references.length === 0) return { items: [] };
+
+    const candidatePageIds = Array.from(
+      new Set(references.map((r) => r.sourcePageId)),
+    );
+    const accessibleSet = new Set(
+      await this.pagePermissionRepo.filterAccessiblePageIds({
+        pageIds: candidatePageIds,
+        userId: viewerUserId,
+      }),
+    );
+
+    return this.lookupWithAccessSet(references, accessibleSet, workspaceId);
+  }
+
+  /**
+   * Resolve transclusion content for the given references using a caller-supplied
+   * `accessibleSet` of source page ids. Source pages absent from the set return
+   * `no_access`. Used by the share-scoped lookup path, where access is gated by
+   * the share graph rather than the viewer's personal permissions.
+   */
+  async lookupWithAccessSet(
+    references: Array<{ sourcePageId: string; transclusionId: string }>,
+    accessibleSet: Set<string>,
+    workspaceId: string,
+  ): Promise<{ items: TransclusionLookup[] }> {
+    if (references.length === 0) return { items: [] };
+
+    const items: TransclusionLookup[] = new Array(references.length).fill(null);
+    const pendingIdx = references.map((_, i) => i);
+
+    const accessiblePending = pendingIdx.filter((i) =>
+      accessibleSet.has(references[i].sourcePageId),
+    );
+    const rows = await this.pageTransclusionsRepo.findManyByPageAndTransclusion(
+      accessiblePending.map((i) => ({
+        pageId: references[i].sourcePageId,
+        transclusionId: references[i].transclusionId,
+      })),
+      workspaceId,
+    );
+    const rowKey = (r: { pageId: string; transclusionId: string }) =>
+      `${r.pageId}::${r.transclusionId}`;
+    const rowMap = new Map(rows.map((r) => [rowKey(r), r]));
+
+    const accessiblePageIds = Array.from(
+      new Set(accessiblePending.map((i) => references[i].sourcePageId)),
+    );
+    const pages = await this.pageRepo.findManyByIds(accessiblePageIds, {
+      workspaceId,
+    });
+    const pageMeta = new Map<string, Date>();
+    for (const p of pages) {
+      pageMeta.set(p.id, p.updatedAt);
+    }
+
+    for (const i of pendingIdx) {
+      const ref = references[i];
+      if (!accessibleSet.has(ref.sourcePageId)) {
+        items[i] = {
+          sourcePageId: ref.sourcePageId,
+          transclusionId: ref.transclusionId,
+          status: 'no_access',
+        };
+        continue;
+      }
+      const updatedAt = pageMeta.get(ref.sourcePageId);
+      if (!updatedAt) {
+        items[i] = {
+          sourcePageId: ref.sourcePageId,
+          transclusionId: ref.transclusionId,
+          status: 'not_found',
+        };
+        continue;
+      }
+
+      const row = rowMap.get(`${ref.sourcePageId}::${ref.transclusionId}`);
+      if (!row) {
+        items[i] = {
+          sourcePageId: ref.sourcePageId,
+          transclusionId: ref.transclusionId,
+          status: 'not_found',
+        };
+        continue;
+      }
+      items[i] = {
+        sourcePageId: ref.sourcePageId,
+        transclusionId: ref.transclusionId,
+        content: row.content,
+        sourceUpdatedAt: updatedAt,
+      };
+    }
+
+    return { items };
+  }
+
+  async listReferences(opts: {
+    sourcePageId: string;
+    transclusionId: string;
+    viewerUserId: string;
+    workspaceId: string;
+  }): Promise<{
+    source: ReferencingPageInfo | null;
+    references: ReferencingPageInfo[];
+  }> {
+    const { sourcePageId, transclusionId, viewerUserId, workspaceId } = opts;
+
+    const referencePageIds =
+      await this.pageTransclusionReferencesRepo.findReferencePageIdsByTransclusion(
+        sourcePageId,
+        transclusionId,
+        workspaceId,
+      );
+
+    const candidatePageIds = Array.from(
+      new Set([sourcePageId, ...referencePageIds]),
+    );
+    const accessibleSet = new Set(
+      await this.pagePermissionRepo.filterAccessiblePageIds({
+        pageIds: candidatePageIds,
+        userId: viewerUserId,
+      }),
+    );
+
+    const accessibleIds = candidatePageIds.filter((id) =>
+      accessibleSet.has(id),
+    );
+    if (accessibleIds.length === 0) {
+      return { source: null, references: [] };
+    }
+
+    const rows = await Promise.all(
+      accessibleIds.map((id) =>
+        this.pageRepo.findById(id, { includeSpace: true }),
+      ),
+    );
+    const byId = new Map<string, ReferencingPageInfo>();
+    for (const p of rows) {
+      if (!p || p.deletedAt || p.workspaceId !== workspaceId) continue;
+      const space = (p as Page & { space?: { slug?: string } }).space;
+      byId.set(p.id, {
+        id: p.id,
+        slugId: p.slugId,
+        title: p.title ?? null,
+        icon: p.icon ?? null,
+        spaceId: p.spaceId,
+        spaceSlug: space?.slug ?? null,
+      });
+    }
+
+    const source = byId.get(sourcePageId) ?? null;
+    const references = referencePageIds
+      .map((id) => byId.get(id))
+      .filter((p): p is ReferencingPageInfo => Boolean(p));
+
+    return { source, references };
+  }
+
+  /**
+   * Convert a `transclusionReference` into a self-contained copy on the
+   * reference page: load source content, generate fresh attachment ids, copy storage
+   * files, insert new attachment rows, return rewritten content. The caller
+   * (controller) returns the content blob to the client which then performs
+   * `editor.commands.insertContentAt(range, content)` to replace the
+   * reference node. The next Yjs save naturally cleans up the
+   * page_transclusion_references row, but we also delete it eagerly here so a
+   * crash between server response and client save doesn't leave a stale row.
+   */
+  async unsyncReference(
+    referencePageId: string,
+    sourcePageId: string,
+    transclusionId: string,
+    user: User,
+  ): Promise<{ content: unknown }> {
+    const referencePage = await this.pageRepo.findById(referencePageId);
+    if (!referencePage || referencePage.deletedAt) {
+      throw new NotFoundException('Reference page not found');
+    }
+
+    const sourcePage = await this.pageRepo.findById(sourcePageId);
+    if (!sourcePage || sourcePage.deletedAt) {
+      throw new NotFoundException('Source page not found');
+    }
+
+    if (
+      referencePage.workspaceId !== user.workspaceId ||
+      sourcePage.workspaceId !== user.workspaceId
+    ) {
+      throw new ForbiddenException();
+    }
+
+    await this.pageAccessService.validateCanEdit(referencePage, user);
+    await this.pageAccessService.validateCanView(sourcePage, user);
+
+    const transclusion =
+      await this.pageTransclusionsRepo.findByPageAndTransclusion(
+        sourcePageId,
+        transclusionId,
+      );
+    if (!transclusion) {
+      throw new NotFoundException('Sync block not found');
+    }
+
+    const { content, copies } = rewriteAttachmentsForUnsync(
+      transclusion.content,
+      () => uuid7(),
+    );
+
+    if (copies.length > 0) {
+      const oldIds = copies.map((c) => c.oldAttachmentId);
+      const oldRows = await this.attachmentRepo.findByIds(oldIds);
+      const byOldId = new Map(
+        oldRows
+          .filter((a) => a.pageId === sourcePageId)
+          .map((a) => [a.id, a]),
+      );
+
+      for (const plan of copies) {
+        const old = byOldId.get(plan.oldAttachmentId);
+        if (!old) continue;
+
+        const newFilePath = old.filePath
+          .split(plan.oldAttachmentId)
+          .join(plan.newAttachmentId);
+        try {
+          await this.storageService.copy(old.filePath, newFilePath);
+        } catch (err) {
+          this.logger.error(
+            `unsync: failed to copy attachment ${old.id}`,
+            err as Error,
+          );
+          continue;
+        }
+        await this.attachmentRepo.insertAttachment({
+          id: plan.newAttachmentId,
+          type: old.type,
+          filePath: newFilePath,
+          fileName: old.fileName,
+          fileSize: old.fileSize,
+          mimeType: old.mimeType,
+          fileExt: old.fileExt,
+          creatorId: user.id,
+          workspaceId: referencePage.workspaceId,
+          pageId: referencePageId,
+          spaceId: referencePage.spaceId,
+        });
+      }
+    }
+
+    await this.pageTransclusionReferencesRepo.deleteOne(
+      referencePageId,
+      sourcePageId,
+      transclusionId,
+    );
+
+    return { content };
+  }
+}