diff --git a/apps/web/app/api/openeditor/emoji-data/[locale]/[file]/route.ts b/apps/web/app/api/openeditor/emoji-data/[locale]/[file]/route.ts
deleted file mode 100644
index 03f10509..00000000
--- a/apps/web/app/api/openeditor/emoji-data/[locale]/[file]/route.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import { createOpenEditorEmojiDataResponse } from "@openeditor/document/emoji";
-
-export const dynamic = "force-static";
-
-export function generateStaticParams() {
-  return [
-    { locale: "en", file: "data.json" },
-    { locale: "en", file: "messages.json" },
-  ];
-}
-
-export async function GET(
-  _request: Request,
-  { params }: { params: Promise<{ locale: string; file: string }> },
-) {
-  const { locale, file } = await params;
-  return createOpenEditorEmojiDataResponse(locale, file);
-}
diff --git a/apps/web/features/marketing/openeditor-demo.tsx b/apps/web/features/marketing/openeditor-demo.tsx
index ae36f911..779c2ec1 100644
--- a/apps/web/features/marketing/openeditor-demo.tsx
+++ b/apps/web/features/marketing/openeditor-demo.tsx
@@ -9,12 +9,13 @@ import {
 import { OpenEditorContent, useOpenEditorController } from "@openeditor/react";
 import {
   OpenEditorBlockMenu,
+  OpenEditorEmojiPickerProvider,
   OpenEditorSelectionBubble,
   OpenEditorSlashMenu,
   OpenEditorTableMenu,
   OpenEditorThemeProvider,
-} from "@openeditor/ui";
-import "@openeditor/ui/styles.css";
+} from "@openeditor/react";
+import "@openeditor/react/styles.css";
 import { useRef } from "react";
 import { EditorParticleField } from "./editor-particle-field";
 
@@ -291,28 +292,30 @@ export function OpenEditorDemo() {
   });
 
   return (
-    <OpenEditorThemeProvider theme={baseBlocksOpenEditorTheme}>
-      <div className="landing-editor-demo">
-        <div
-          aria-hidden="true"
-          className="landing-editor-contour-target"
-          ref={contourRef}
-        />
-        <EditorParticleField contourRef={contourRef} shape="masses" />
-        <div className="landing-editor-paper">
-          <div className="landing-editor-paper-inner">
-            <OpenEditorContent
-              className="oe-canvas landing-editor-canvas"
-              controller={controller}
-            />
+    <OpenEditorEmojiPickerProvider>
+      <OpenEditorThemeProvider theme={baseBlocksOpenEditorTheme}>
+        <div className="landing-editor-demo">
+          <div
+            aria-hidden="true"
+            className="landing-editor-contour-target"
+            ref={contourRef}
+          />
+          <EditorParticleField contourRef={contourRef} shape="masses" />
+          <div className="landing-editor-paper">
+            <div className="landing-editor-paper-inner">
+              <OpenEditorContent
+                className="oe-canvas landing-editor-canvas"
+                controller={controller}
+              />
+            </div>
           </div>
-        </div>
 
-        <OpenEditorBlockMenu controller={controller} />
-        <OpenEditorSelectionBubble controller={controller} />
-        <OpenEditorTableMenu controller={controller} />
-        <OpenEditorSlashMenu controller={controller} />
-      </div>
-    </OpenEditorThemeProvider>
+          <OpenEditorBlockMenu controller={controller} />
+          <OpenEditorSelectionBubble controller={controller} />
+          <OpenEditorTableMenu controller={controller} />
+          <OpenEditorSlashMenu controller={controller} />
+        </div>
+      </OpenEditorThemeProvider>
+    </OpenEditorEmojiPickerProvider>
   );
 }
diff --git a/apps/web/features/openeditor/extensions/library.tsx b/apps/web/features/openeditor/extensions/library.tsx
index c8b82def..45431df4 100644
--- a/apps/web/features/openeditor/extensions/library.tsx
+++ b/apps/web/features/openeditor/extensions/library.tsx
@@ -23,8 +23,8 @@ import {
   SelectValue,
 } from "@baseblocks/ui/select";
 import { Switch } from "@baseblocks/ui/switch";
-import { defineOpenEditorCustomBlockEditor } from "@openeditor/custom-block/editor";
-import { defineOpenEditorCustomBlockViewer } from "@openeditor/custom-block/viewer";
+import { defineOpenEditorCustomBlockEditor } from "@openeditor/react/extensions/editor";
+import { defineOpenEditorCustomBlockViewer } from "@openeditor/react/extensions/viewer";
 import { useMutation, useQuery } from "convex/react";
 import { useId, useState } from "react";
 
diff --git a/apps/web/features/openeditor/extensions/search.tsx b/apps/web/features/openeditor/extensions/search.tsx
index 96984c2b..0c967103 100644
--- a/apps/web/features/openeditor/extensions/search.tsx
+++ b/apps/web/features/openeditor/extensions/search.tsx
@@ -11,8 +11,8 @@ import { searchBlock } from "@baseblocks/openeditor-contracts/core-blocks";
 import { Input } from "@baseblocks/ui/input";
 import { Label } from "@baseblocks/ui/label";
 import { Switch } from "@baseblocks/ui/switch";
-import { defineOpenEditorCustomBlockEditor } from "@openeditor/custom-block/editor";
-import { defineOpenEditorCustomBlockViewer } from "@openeditor/custom-block/viewer";
+import { defineOpenEditorCustomBlockEditor } from "@openeditor/react/extensions/editor";
+import { defineOpenEditorCustomBlockViewer } from "@openeditor/react/extensions/viewer";
 import { useId } from "react";
 
 function SearchPreview({ value }: { value: Required<SearchContent> }) {
diff --git a/apps/web/features/openeditor/openeditor-page-editor.tsx b/apps/web/features/openeditor/openeditor-page-editor.tsx
index 5098d3a6..2fc56b50 100644
--- a/apps/web/features/openeditor/openeditor-page-editor.tsx
+++ b/apps/web/features/openeditor/openeditor-page-editor.tsx
@@ -20,6 +20,7 @@ import type {
 } from "@openeditor/document";
 import {
   OpenEditorContent,
+  OpenEditorEmojiPickerProvider,
   OpenEditorPageHeader,
   type OpenEditorSlashMenuItem,
   OpenEditorViewer,
@@ -31,8 +32,8 @@ import {
   OpenEditorSlashMenu,
   OpenEditorTableMenu,
   OpenEditorThemeProvider,
-} from "@openeditor/ui";
-import "@openeditor/ui/styles.css";
+} from "@openeditor/react";
+import "@openeditor/react/styles.css";
 import { useMutation } from "convex/react";
 import { useEffect, useRef, useState, type ReactNode } from "react";
 import { useTranslations } from "next-intl";
@@ -184,33 +185,35 @@ export function OpenEditorPageEditor({
     : undefined;
 
   return (
-    <SiteRenderActionsProvider actions={{ siteId }}>
-      {readOpenEditorPageTabs(document) ? (
-        <OpenEditorTabbedPageEditor
-          attachmentRuntime={attachmentRuntime}
-          canEdit={canEdit}
-          fullWidthStyle={fullWidthStyle}
-          imageRuntime={imageRuntime}
-          document={document}
-          onChange={onChange}
-          pageHeading={pageHeading}
-          pageRuntime={pageRuntime}
-          preview={preview}
-        />
-      ) : (
-        <OpenEditorDocumentEditor
-          attachmentRuntime={attachmentRuntime}
-          canEdit={canEdit}
-          fullWidthStyle={fullWidthStyle}
-          imageRuntime={imageRuntime}
-          document={document}
-          onChange={onChange}
-          pageHeading={pageHeading}
-          pageRuntime={pageRuntime}
-          preview={preview}
-        />
-      )}
-    </SiteRenderActionsProvider>
+    <OpenEditorEmojiPickerProvider>
+      <SiteRenderActionsProvider actions={{ siteId }}>
+        {readOpenEditorPageTabs(document) ? (
+          <OpenEditorTabbedPageEditor
+            attachmentRuntime={attachmentRuntime}
+            canEdit={canEdit}
+            fullWidthStyle={fullWidthStyle}
+            imageRuntime={imageRuntime}
+            document={document}
+            onChange={onChange}
+            pageHeading={pageHeading}
+            pageRuntime={pageRuntime}
+            preview={preview}
+          />
+        ) : (
+          <OpenEditorDocumentEditor
+            attachmentRuntime={attachmentRuntime}
+            canEdit={canEdit}
+            fullWidthStyle={fullWidthStyle}
+            imageRuntime={imageRuntime}
+            document={document}
+            onChange={onChange}
+            pageHeading={pageHeading}
+            pageRuntime={pageRuntime}
+            preview={preview}
+          />
+        )}
+      </SiteRenderActionsProvider>
+    </OpenEditorEmojiPickerProvider>
   );
 }
 
diff --git a/apps/web/features/openeditor/openeditor-theme.ts b/apps/web/features/openeditor/openeditor-theme.ts
index 335b87cc..8cf1ec5c 100644
--- a/apps/web/features/openeditor/openeditor-theme.ts
+++ b/apps/web/features/openeditor/openeditor-theme.ts
@@ -1,4 +1,4 @@
-import type { OpenEditorTheme } from "@openeditor/ui";
+import type { OpenEditorTheme } from "@openeditor/react";
 
 export const baseBlocksOpenEditorTheme = {
   surface: "var(--background)",
diff --git a/apps/web/features/openeditor/page-tabs.tsx b/apps/web/features/openeditor/page-tabs.tsx
index 16e4e3ab..66542070 100644
--- a/apps/web/features/openeditor/page-tabs.tsx
+++ b/apps/web/features/openeditor/page-tabs.tsx
@@ -29,7 +29,7 @@ import {
   OpenEditorSelectionBubble,
   OpenEditorSlashMenu,
   OpenEditorTableMenu,
-} from "@openeditor/ui";
+} from "@openeditor/react";
 import {
   useCallback,
   useEffect,
diff --git a/apps/web/features/published-sites/page-content.tsx b/apps/web/features/published-sites/page-content.tsx
index 8918824d..ec9236a5 100644
--- a/apps/web/features/published-sites/page-content.tsx
+++ b/apps/web/features/published-sites/page-content.tsx
@@ -15,8 +15,8 @@ import type {
   OpenEditorPageRuntime,
 } from "@openeditor/document";
 import { OpenEditorViewer } from "@openeditor/react";
-import { OpenEditorThemeProvider } from "@openeditor/ui";
-import "@openeditor/ui/styles.css";
+import { OpenEditorThemeProvider } from "@openeditor/react";
+import "@openeditor/react/styles.css";
 import type { PublishedPageTarget } from "./page-targets";
 
 const EMPTY_PAGE_TARGETS = new Map<string, PublishedPageTarget>();
diff --git a/apps/web/package.json b/apps/web/package.json
index dd627b10..8ddc8917 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -30,12 +30,9 @@
     "@flags-sdk/vercel": "^1.4.6",
     "@hugeicons/core-free-icons": "^4.2.3",
     "@hugeicons/react": "^1.1.9",
-    "@openeditor/custom-block": "0.0.55",
-    "@openeditor/document": "0.0.55",
-    "@openeditor/export": "0.0.55",
-    "@openeditor/mutations": "0.0.55",
-    "@openeditor/react": "0.0.55",
-    "@openeditor/ui": "0.0.55",
+    "@openeditor/document": "1.0.0",
+    "@openeditor/export": "1.0.0",
+    "@openeditor/react": "1.0.0",
     "@vercel/analytics": "^2.0.1",
     "@vercel/sdk": "^1.28.8",
     "ai": "7.0.49",
diff --git a/bun.lock b/bun.lock
index 94fb4930..15375d70 100644
--- a/bun.lock
+++ b/bun.lock
@@ -34,12 +34,9 @@
         "@flags-sdk/vercel": "^1.4.6",
         "@hugeicons/core-free-icons": "^4.2.3",
         "@hugeicons/react": "^1.1.9",
-        "@openeditor/custom-block": "0.0.55",
-        "@openeditor/document": "0.0.55",
-        "@openeditor/export": "0.0.55",
-        "@openeditor/mutations": "0.0.55",
-        "@openeditor/react": "0.0.55",
-        "@openeditor/ui": "0.0.55",
+        "@openeditor/document": "1.0.0",
+        "@openeditor/export": "1.0.0",
+        "@openeditor/react": "1.0.0",
         "@vercel/analytics": "^2.0.1",
         "@vercel/sdk": "^1.28.8",
         "ai": "7.0.49",
@@ -91,9 +88,7 @@
         "@convex-dev/workpool": "^0.4.9",
         "@firecrawl/anydoc": "0.1.9",
         "@noble/hashes": "2.0.1",
-        "@openeditor/custom-block": "0.0.55",
-        "@openeditor/document": "0.0.55",
-        "@openeditor/mutations": "0.0.55",
+        "@openeditor/document": "1.0.0",
         "@polar-sh/sdk": "0.49.0",
         "ai": "7.0.49",
         "better-auth": "^1.6.23",
@@ -121,8 +116,8 @@
         "@dnd-kit/react": "^0.5.0",
         "@hugeicons/core-free-icons": "^4.2.3",
         "@hugeicons/react": "^1.1.9",
-        "@openeditor/custom-block": "0.0.55",
-        "@openeditor/document": "0.0.55",
+        "@openeditor/document": "1.0.0",
+        "@openeditor/react": "1.0.0",
         "react": "19.2.7",
       },
       "devDependencies": {
@@ -154,8 +149,9 @@
       "version": "0.0.0",
       "dependencies": {
         "@baseblocks/custom-blocks": "workspace:*",
-        "@openeditor/document": "0.0.55",
-        "@openeditor/engine": "0.0.55",
+        "@openeditor/document": "1.0.0",
+        "@openeditor/engine": "1.0.0",
+        "valibot": "^1.4.2",
       },
       "devDependencies": {
         "@baseblocks/tsconfig": "workspace:*",
@@ -213,42 +209,6 @@
     },
   },
   "overrides": {
-    "@tiptap/core": "3.29.2",
-    "@tiptap/extension-blockquote": "3.29.2",
-    "@tiptap/extension-bold": "3.29.2",
-    "@tiptap/extension-bubble-menu": "3.29.2",
-    "@tiptap/extension-bullet-list": "3.29.2",
-    "@tiptap/extension-code": "3.29.2",
-    "@tiptap/extension-code-block": "3.29.2",
-    "@tiptap/extension-document": "3.29.2",
-    "@tiptap/extension-dropcursor": "3.29.2",
-    "@tiptap/extension-floating-menu": "3.29.2",
-    "@tiptap/extension-gapcursor": "3.29.2",
-    "@tiptap/extension-hard-break": "3.29.2",
-    "@tiptap/extension-heading": "3.29.2",
-    "@tiptap/extension-horizontal-rule": "3.29.2",
-    "@tiptap/extension-image": "3.29.2",
-    "@tiptap/extension-italic": "3.29.2",
-    "@tiptap/extension-link": "3.29.2",
-    "@tiptap/extension-list": "3.29.2",
-    "@tiptap/extension-list-item": "3.29.2",
-    "@tiptap/extension-list-keymap": "3.29.2",
-    "@tiptap/extension-ordered-list": "3.29.2",
-    "@tiptap/extension-paragraph": "3.29.2",
-    "@tiptap/extension-placeholder": "3.29.2",
-    "@tiptap/extension-strike": "3.29.2",
-    "@tiptap/extension-table": "3.29.2",
-    "@tiptap/extension-task-item": "3.29.2",
-    "@tiptap/extension-task-list": "3.29.2",
-    "@tiptap/extension-text": "3.29.2",
-    "@tiptap/extension-text-align": "3.29.2",
-    "@tiptap/extension-underline": "3.29.2",
-    "@tiptap/extension-unique-id": "3.29.2",
-    "@tiptap/extensions": "3.29.2",
-    "@tiptap/pm": "3.29.2",
-    "@tiptap/react": "3.29.2",
-    "@tiptap/starter-kit": "3.29.2",
-    "@tiptap/suggestion": "3.29.2",
     "convex": "1.43.0",
     "react": "19.2.8",
     "react-dom": "19.2.8",
@@ -668,21 +628,13 @@
 
     "@nodelib/fs.walk": ["@nodelib/fs.walk@1.2.8", "", { "dependencies": { "@nodelib/fs.scandir": "2.1.5", "fastq": "^1.6.0" } }, "sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg=="],
 
-    "@openeditor/custom-block": ["@openeditor/custom-block@0.0.55", "", { "dependencies": { "@openeditor/document": "0.0.55" }, "peerDependencies": { "@tiptap/core": ">=3.29.2", "@tiptap/react": ">=3.29.2", "react": ">=19" }, "optionalPeers": ["@tiptap/core", "@tiptap/react"] }, "sha512-tdocUZULPEGjTnI8zYYwQLOhdoBYxnmqhllxrZ51zYEhbKFgSElfiB42gFOWWo+7+ykUh6Bmcouynh5VZAxKyQ=="],
+    "@openeditor/document": ["@openeditor/document@1.0.0", "", { "dependencies": { "@standard-schema/spec": "^1.1.0", "valibot": "^1.4.2" } }, "sha512-UxPnEW7xju/iIZFYp0ryPUf5oCWAvLaLMVnIvQaTHn5Tg+8paucb+s/NzSbgvpLIkUvu69K4Yqu5/gr0PC5CiA=="],
 
-    "@openeditor/document": ["@openeditor/document@0.0.55", "", { "dependencies": { "emojibase-data": "16.0.2" } }, "sha512-kQ4DIvdffAgnpVrMGUCdn2Kf+i7N8E9jMbf5GzW5hatxnp+JOXpzfh/KIDQCyLlIc2qB83jaBBHOuJJ5B+Ojcg=="],
+    "@openeditor/engine": ["@openeditor/engine@1.0.0", "", { "dependencies": { "@openeditor/document": "1.0.0", "@tiptap/core": "3.31.3", "@tiptap/extension-image": "3.31.3", "@tiptap/extension-link": "3.31.3", "@tiptap/extension-table": "3.31.3", "@tiptap/extension-task-item": "3.31.3", "@tiptap/extension-task-list": "3.31.3", "@tiptap/extension-text-align": "3.31.3", "@tiptap/extension-underline": "3.31.3", "@tiptap/extension-unique-id": "3.31.3", "@tiptap/pm": "3.31.3", "@tiptap/starter-kit": "3.31.3", "valibot": "^1.4.2" } }, "sha512-0l1v26YZgp8oz+6FwkmQKzEe5DxkiKSRFu5jlq+3vaQQN73pGTBBQql5WQlqtTj1QO/O+gRwO4zkgrhZUxZLRQ=="],
 
-    "@openeditor/engine": ["@openeditor/engine@0.0.55", "", { "dependencies": { "@openeditor/document": "0.0.55", "@tiptap/core": "3.29.2", "@tiptap/extension-blockquote": "3.29.2", "@tiptap/extension-bold": "3.29.2", "@tiptap/extension-bullet-list": "3.29.2", "@tiptap/extension-code": "3.29.2", "@tiptap/extension-code-block": "3.29.2", "@tiptap/extension-document": "3.29.2", "@tiptap/extension-dropcursor": "3.29.2", "@tiptap/extension-gapcursor": "3.29.2", "@tiptap/extension-hard-break": "3.29.2", "@tiptap/extension-heading": "3.29.2", "@tiptap/extension-horizontal-rule": "3.29.2", "@tiptap/extension-image": "3.29.2", "@tiptap/extension-italic": "3.29.2", "@tiptap/extension-link": "3.29.2", "@tiptap/extension-list": "3.29.2", "@tiptap/extension-list-item": "3.29.2", "@tiptap/extension-list-keymap": "3.29.2", "@tiptap/extension-ordered-list": "3.29.2", "@tiptap/extension-paragraph": "3.29.2", "@tiptap/extension-strike": "3.29.2", "@tiptap/extension-table": "3.29.2", "@tiptap/extension-task-item": "3.29.2", "@tiptap/extension-task-list": "3.29.2", "@tiptap/extension-text": "3.29.2", "@tiptap/extension-text-align": "3.29.2", "@tiptap/extension-underline": "3.29.2", "@tiptap/extension-unique-id": "3.29.2", "@tiptap/extensions": "3.29.2", "@tiptap/pm": "3.29.2", "@tiptap/starter-kit": "3.29.2" } }, "sha512-pFZa843KdgGL5RndVvnDlGq8vfDZoppGDk2S1TVeIumLVua/1rvyuX3O/7cMwYt8dHGnpFLS2wRRD57f7hV72A=="],
+    "@openeditor/export": ["@openeditor/export@1.0.0", "", { "dependencies": { "@openeditor/document": "1.0.0", "docx": "^9.7.1", "jszip": "^3.10.1", "parse5": "^7.3.0" } }, "sha512-ZwY6qjSX4hw4Rau79Fh+lXN6wrnz/QXK1aM5oLwRRcwTDNx0gdpN6G2NFvouHnoN4kJHSuCLWZyevmZmPXQ+Sw=="],
 
-    "@openeditor/export": ["@openeditor/export@0.0.55", "", { "dependencies": { "@openeditor/document": "0.0.55", "docx": "^9.7.1", "jszip": "^3.10.1", "parse5": "^7.3.0" } }, "sha512-C8IJ/Q1+m3VWDA3rFq3WDm1XpVbAGaum7jX0X3oavYmlxkRE/7GyEIazRL1VBteGKag0pqcIo253PNx9Q9K3Eg=="],
-
-    "@openeditor/icons": ["@openeditor/icons@0.0.55", "", { "dependencies": { "@hugeicons/core-free-icons": "^4.2.3" } }, "sha512-HovuSDJbN/j7kGT7cSH0fuFia+YSZHzTZp88hqzfMObtIuDRtbSdFbwpMsEcLePIU4oYfO6VT9h6+UqGSyugHA=="],
-
-    "@openeditor/mutations": ["@openeditor/mutations@0.0.55", "", { "dependencies": { "@openeditor/document": "0.0.55" } }, "sha512-WFrx2gt+NJMaUioDfFhRsoSJGwFuXbLMDmj+ZQUjXfa4UjiSwok7CeEy0RSEyeXolhfjpaCKIHthn8bipzLpQA=="],
-
-    "@openeditor/react": ["@openeditor/react@0.0.55", "", { "dependencies": { "@floating-ui/dom": "^1.7.4", "@hugeicons/react": "^1.1.9", "@openeditor/custom-block": "0.0.55", "@openeditor/document": "0.0.55", "@openeditor/engine": "0.0.55", "@openeditor/icons": "0.0.55", "@tiptap/core": "3.29.2", "@tiptap/extension-link": "3.29.2", "@tiptap/extension-placeholder": "3.29.2", "@tiptap/extension-table": "3.29.2", "@tiptap/extension-task-item": "3.29.2", "@tiptap/extension-task-list": "3.29.2", "@tiptap/extension-underline": "3.29.2", "@tiptap/pm": "3.29.2", "@tiptap/react": "3.29.2", "@tiptap/suggestion": "3.29.2", "beautiful-mermaid": "1.1.3", "use-sync-external-store": "1.6.0" }, "peerDependencies": { "react": ">=19", "react-dom": ">=19" } }, "sha512-C+jFFKMeuYV26GgEH8/82G+8uKx6Msb64FeICywwjAZKI80/ACT2aT7IGxJAqaoAXJcKkMIShq/CdBxRbocX6A=="],
-
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@@ -1064,77 +1016,77 @@
 
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-    "@tiptap/extension-text-align": ["@tiptap/extension-text-align@3.29.2", "", { "peerDependencies": { "@tiptap/core": "3.29.2" } }, "sha512-205FF87zjUEh79n6dgVy9SMj1P+rNserHMqPd8lF7YS2TOWikXPG4PFuQHWXXCYzaCvQXAiATSAyPXXmUWUvaQ=="],
+    "@tiptap/extension-text-align": ["@tiptap/extension-text-align@3.31.3", "", { "peerDependencies": { "@tiptap/core": "3.31.3" } }, "sha512-26BJ7c28EyvHzJovNpuenKiIgfRI4KsT/OjBB00y58MyZ0kRXc6dwZVclw8y66clupKTLTWYCDUsy0P/xHj+cA=="],
 
-    "@tiptap/extension-underline": ["@tiptap/extension-underline@3.29.2", "", { "peerDependencies": { "@tiptap/core": "3.29.2" } }, "sha512-K7XwH/xS/5AIREWQ00VTEf/W5U0olp7j6wwit7cdd/8nHv6h6AGr1+iEApHKoLXWQZLfGQKzJlT9W61LAl+fHA=="],
+    "@tiptap/extension-underline": ["@tiptap/extension-underline@3.31.3", "", { "peerDependencies": { "@tiptap/core": "3.31.3" } }, "sha512-HghdJaOwRqYzsAxqSyNyb+IWyOMcdCl8IoiBETA9BZCJAqdXzFLcuWp7CqCqJPam9dgkWosSoHqTCAO4nTBfpw=="],
 
-    "@tiptap/extension-unique-id": ["@tiptap/extension-unique-id@3.29.2", "", { "dependencies": { "uuid": "^14.0.0" }, "peerDependencies": { "@tiptap/core": "3.29.2", "@tiptap/pm": "3.29.2" } }, "sha512-PboSI7+dxqcAJiWQatPOy70Qzju7eIBqQb+m4Bre9jLpH9KYbEXx+oAWSj3MVCPh0qk0GiHQ8nCQhOPqdEs1Dg=="],
+    "@tiptap/extension-unique-id": ["@tiptap/extension-unique-id@3.31.3", "", { "dependencies": { "uuid": "^14.0.0" }, "peerDependencies": { "@tiptap/core": "3.31.3", "@tiptap/pm": "3.31.3" } }, "sha512-ztX6wWurh8PLseQ+CfaX+QNKM6ARUSMxkGXUmQPWBiOwwRLGctGc4rhaFIaTsCyQlDl3tXA8Po8H2PQZ9AsqDQ=="],
 
-    "@tiptap/extensions": ["@tiptap/extensions@3.29.2", "", { "peerDependencies": { "@tiptap/core": "3.29.2", "@tiptap/pm": "3.29.2" } }, "sha512-BCz+FCAChSYtUe4BFj97HEO+nSK+J7GxbJgZG4Hg7DT/gI+hRyeNndU8efiQAx3WGdzsFi3UxRpcF1tTQM7iMQ=="],
+    "@tiptap/extensions": ["@tiptap/extensions@3.31.3", "", { "peerDependencies": { "@tiptap/core": "3.31.3", "@tiptap/pm": "3.31.3" } }, "sha512-8sJNPGGUe8f3aDojcOW5cfVL7I5NrBbE0UWxG08qoi9Tea6qWbvQJsCR9tsrOapr/DaLr3kpbGZ9s1gEEfcNcA=="],
 
-    "@tiptap/pm": ["@tiptap/pm@3.29.2", "", { "dependencies": { "prosemirror-changeset": "^2.4.1", "prosemirror-commands": "^1.7.1", "prosemirror-dropcursor": "^1.8.2", "prosemirror-gapcursor": "^1.4.1", "prosemirror-history": "^1.5.0", "prosemirror-inputrules": "^1.5.1", "prosemirror-keymap": "^1.2.3", "prosemirror-model": "^1.25.11", "prosemirror-schema-list": "^1.5.1", "prosemirror-state": "^1.4.4", "prosemirror-tables": "^1.8.5", "prosemirror-transform": "^1.12.0", "prosemirror-view": "^1.41.9" } }, "sha512-GCOme7xHaS+DSoaA4CDcAD3l6JyBlvZhvCyfsy2Vp6j8tEoBkZWio7soYVosmlyn7zq8/64VeFZP5s47yfG7fQ=="],
+    "@tiptap/pm": ["@tiptap/pm@3.31.3", "", { "dependencies": { "prosemirror-changeset": "^2.4.1", "prosemirror-commands": "^1.7.1", "prosemirror-dropcursor": "^1.8.2", "prosemirror-gapcursor": "^1.4.1", "prosemirror-history": "^1.5.0", "prosemirror-inputrules": "^1.5.1", "prosemirror-keymap": "^1.2.3", "prosemirror-model": "^1.25.11", "prosemirror-schema-list": "^1.5.1", "prosemirror-state": "^1.4.4", "prosemirror-tables": "^1.8.5", "prosemirror-transform": "^1.12.0", "prosemirror-view": "^1.42.3" } }, "sha512-sZime0SWsz/k62W2WvHx5Ig7G2h7kVhrrmnqy+wEgIHfDwEfOlelRjaWCiBCFlF7dxGUntJusCh9FxlLhni0Ag=="],
 
-    "@tiptap/react": ["@tiptap/react@3.29.2", "", { "dependencies": { "@types/use-sync-external-store": "^0.0.6", "fast-equals": "^5.3.3", "use-sync-external-store": "^1.4.0" }, "optionalDependencies": { "@tiptap/extension-bubble-menu": "^3.29.2", "@tiptap/extension-floating-menu": "^3.29.2" }, "peerDependencies": { "@tiptap/core": "3.29.2", "@tiptap/pm": "3.29.2", "@types/react": "^17.0.0 || ^18.0.0 || ^19.0.0", "@types/react-dom": "^17.0.0 || ^18.0.0 || ^19.0.0", "react": "^17.0.0 || ^18.0.0 || ^19.0.0", "react-dom": "^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-ZMKgteYmZXnq7C22U9fbCTC6jAF8XlQM5n2K2FLWCdYAlP4FNV3XeQ9hY2a13KSQ0Q3yltWXZlcWBpt5ClxScg=="],
+    "@tiptap/react": ["@tiptap/react@3.31.3", "", { "dependencies": { "@types/use-sync-external-store": "^0.0.6", "fast-equals": "^5.3.3", "use-sync-external-store": "^1.4.0" }, "optionalDependencies": { "@tiptap/extension-bubble-menu": "^3.31.3", "@tiptap/extension-floating-menu": "^3.31.3" }, "peerDependencies": { "@tiptap/core": "3.31.3", "@tiptap/pm": "3.31.3", "@types/react": "^17.0.0 || ^18.0.0 || ^19.0.0", "@types/react-dom": "^17.0.0 || ^18.0.0 || ^19.0.0", "react": "^17.0.0 || ^18.0.0 || ^19.0.0", "react-dom": "^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-QiwQqvaLFLm5EMFu5tg7nAgXJxCUiUTLD8EsK+TqVV5P4bqOoMOCM39khbhXTJyahCuYpiFWx5YOSDtC/JiPtg=="],
 
-    "@tiptap/starter-kit": ["@tiptap/starter-kit@3.29.2", "", { "dependencies": { "@tiptap/core": "^3.29.2", "@tiptap/extension-blockquote": "^3.29.2", "@tiptap/extension-bold": "^3.29.2", "@tiptap/extension-bullet-list": "^3.29.2", "@tiptap/extension-code": "^3.29.2", "@tiptap/extension-code-block": "^3.29.2", "@tiptap/extension-document": "^3.29.2", "@tiptap/extension-dropcursor": "^3.29.2", "@tiptap/extension-gapcursor": "^3.29.2", "@tiptap/extension-hard-break": "^3.29.2", "@tiptap/extension-heading": "^3.29.2", "@tiptap/extension-horizontal-rule": "^3.29.2", "@tiptap/extension-italic": "^3.29.2", "@tiptap/extension-link": "^3.29.2", "@tiptap/extension-list": "^3.29.2", "@tiptap/extension-list-item": "^3.29.2", "@tiptap/extension-list-keymap": "^3.29.2", "@tiptap/extension-ordered-list": "^3.29.2", "@tiptap/extension-paragraph": "^3.29.2", "@tiptap/extension-strike": "^3.29.2", "@tiptap/extension-text": "^3.29.2", "@tiptap/extension-underline": "^3.29.2", "@tiptap/extensions": "^3.29.2", "@tiptap/pm": "^3.29.2" } }, "sha512-oTu0tysiqk4zgjEtxRHjAQgxUKaAevZwueOWwSWubHdokqp7SpcbE5n9USJv89HKuTUDm3GjnQH6q8HNn/2DsA=="],
+    "@tiptap/starter-kit": ["@tiptap/starter-kit@3.31.3", "", { "dependencies": { "@tiptap/core": "3.31.3", "@tiptap/extension-blockquote": "3.31.3", "@tiptap/extension-bold": "3.31.3", "@tiptap/extension-bullet-list": "3.31.3", "@tiptap/extension-code": "3.31.3", "@tiptap/extension-code-block": "3.31.3", "@tiptap/extension-document": "3.31.3", "@tiptap/extension-dropcursor": "3.31.3", "@tiptap/extension-gapcursor": "3.31.3", "@tiptap/extension-hard-break": "3.31.3", "@tiptap/extension-heading": "3.31.3", "@tiptap/extension-horizontal-rule": "3.31.3", "@tiptap/extension-italic": "3.31.3", "@tiptap/extension-link": "3.31.3", "@tiptap/extension-list": "3.31.3", "@tiptap/extension-list-item": "3.31.3", "@tiptap/extension-list-keymap": "3.31.3", "@tiptap/extension-ordered-list": "3.31.3", "@tiptap/extension-paragraph": "3.31.3", "@tiptap/extension-strike": "3.31.3", "@tiptap/extension-text": "3.31.3", "@tiptap/extension-underline": "3.31.3", "@tiptap/extensions": "3.31.3", "@tiptap/pm": "3.31.3" } }, "sha512-WKof9RewdmGHvWJ1wn0/HVNG2mV+HOgVRyJkKekuM9fgr6BZAAH/xZsWE1eon+94JnQ+KtK2ThydXQM/qc6b2A=="],
 
-    "@tiptap/suggestion": ["@tiptap/suggestion@3.29.2", "", { "peerDependencies": { "@floating-ui/dom": "^1.0.0", "@tiptap/core": "3.29.2", "@tiptap/pm": "3.29.2" } }, "sha512-ZEhRm0gnRCwCScR9IrnIBhm9sr6U8vpR9oeznYk3hiedZ48zsgohqvgoIYpWcwYWrT2Pb0NrfhCT8IuSzdJHzQ=="],
+    "@tiptap/suggestion": ["@tiptap/suggestion@3.31.3", "", { "peerDependencies": { "@floating-ui/dom": "^1.0.0", "@tiptap/core": "3.31.3", "@tiptap/pm": "3.31.3" } }, "sha512-z1OQ/Yx6seMZehi1AcmNkyJ8qkHQzybArmCyRdmreS4YL9C4bPMBe5lbMfFsArYs+KD5JyHwps5j7J/YE5BIuw=="],
 
     "@tootallnate/once": ["@tootallnate/once@2.0.0", "", {}, "sha512-XCuKFP5PS55gnMVu3dty8KPatLqUoy/ZYzDzAGCQ8JNFCkLXzmI7vNHCR+XpbZaMWQK/vQubr7PkYq8g470J/A=="],
 
@@ -1566,7 +1518,7 @@
 
     "enquirer": ["enquirer@2.4.1", "", { "dependencies": { "ansi-colors": "^4.1.1", "strip-ansi": "^6.0.1" } }, "sha512-rRqJg/6gd538VHvR3PSrdRBb/1Vy2YfzHqzvbhGIQpDRKIa4FgV/54b5Q1xYSxOOwKvjXweS26E0Q+nAMwp2pQ=="],
 
-    "entities": ["entities@6.0.1", "", {}, "sha512-aN97NXWF6AWBTahfVOIrB/NShkzi5H7F9r1s9mD3cDj4Ko5f2qhhVoYMibXF7GlLveb/D2ioWay8lxI97Ven3g=="],
+    "entities": ["entities@7.0.1", "", {}, "sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA=="],
 
     "es-define-property": ["es-define-property@1.0.1", "", {}, "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g=="],
 
@@ -2194,7 +2146,7 @@
 
     "prosemirror-transform": ["prosemirror-transform@1.12.0", "", { "dependencies": { "prosemirror-model": "^1.21.0" } }, "sha512-GxboyN4AMIsoHNtz5uf2r2Ru551i5hWeCMD6E2Ib4Eogqoub0NflniaBPVQ4MrGE5yZ8JV9tUHg9qcZTTrcN4w=="],
 
-    "prosemirror-view": ["prosemirror-view@1.42.2", "", { "dependencies": { "prosemirror-model": "^1.25.8", "prosemirror-state": "^1.0.0", "prosemirror-transform": "^1.1.0" } }, "sha512-Pdg0l5kXm8aLDquFAnQFTCITg0q44sLqBlHlpsVLD9segdOao8TOfQdAhCrCXyVgPSRr6UDDROOIWA3bIrN9YQ=="],
+    "prosemirror-view": ["prosemirror-view@1.42.3", "", { "dependencies": { "prosemirror-model": "^1.25.8", "prosemirror-state": "^1.0.0", "prosemirror-transform": "^1.1.0" } }, "sha512-oTN7EtH+CpwxU9NrwEYWd0UZ4JUx7l048l5A2Xppm4p/60isZYLnth9QVQmC3VRIvdrIWCxwZSd+Uz791G31/w=="],
 
     "proxy-addr": ["proxy-addr@2.0.7", "", { "dependencies": { "forwarded": "0.2.0", "ipaddr.js": "1.9.1" } }, "sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg=="],
 
@@ -2514,6 +2466,8 @@
 
     "uuid": ["uuid@14.0.1", "", { "bin": { "uuid": "dist-node/bin/uuid" } }, "sha512-6ZxzVpzDXDa3bJWaHilVayA+BH/1zmxCJoVgvmqJnid/gPoKHxUrS/aC/T6LGQtNHT+XHG9fXPJB4d+IrU30Ew=="],
 
+    "valibot": ["valibot@1.4.2", "", { "peerDependencies": { "typescript": ">=5" }, "optionalPeers": ["typescript"] }, "sha512-gjdCvJ6d3RyHAneqxMYMW9QMCwYMb3jpOO0IyHZV1bnRHFBHrX3VkIILt5XYR0WhwHiH7Mty8ovuPZ/O3gamrg=="],
+
     "vary": ["vary@1.1.2", "", {}, "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="],
 
     "vaul": ["vaul@1.1.2", "", { "dependencies": { "@radix-ui/react-dialog": "^1.1.1" }, "peerDependencies": { "react": "^16.8 || ^17.0 || ^18.0 || ^19.0.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0.0 || ^19.0.0-rc" } }, "sha512-ZFkClGpWyI2WUQjdLJ/BaGuV6AVQiJ3uELGk3OYtP+B6yCO7Cmn9vPFXVJkRaGkOJu3m8bQMgtyzNHixULceQA=="],
@@ -2694,8 +2648,6 @@
 
     "accepts/mime-types": ["mime-types@3.0.2", "", { "dependencies": { "mime-db": "^1.54.0" } }, "sha512-Lbgzdk0h4juoQ9fCKXW4by0UJqj+nOOrI9MJ1sSj4nI8aI2eo1qmvQEie4VD1glsS250n15LsWsYtCugiStS5A=="],
 
-    "beautiful-mermaid/entities": ["entities@7.0.1", "", {}, "sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA=="],
-
     "better-auth/jose": ["jose@6.2.8", "", {}, "sha512-Bsdjwm3Qsd/P0jR+BHDe3LytDfY7WBq2HmCCLIwuVRHMuEC9ae7/R474GIUdF1NgCyZjzVo/A9DOiOBtXq8ZoQ=="],
 
     "body-parser/content-type": ["content-type@2.0.0", "", {}, "sha512-j/O/d7GcZCyNl7/hwZAb606rzqkyvaDctLmckbxLzHvFBzTJHuGEdodATcP3yIRoDrLHkIATJuvzbFlp/ki2cQ=="],
@@ -2748,8 +2700,20 @@
 
     "parse-entities/@types/unist": ["@types/unist@2.0.11", "", {}, "sha512-CmBKiL6NNo/OqgmMn95Fk9Whlp2mtvIv+KNpQKN2F4SjvrEesubTRWGYSg+BnWZOnlCaSTU1sMpsBOzgbYhnsA=="],
 
+    "parse5/entities": ["entities@6.0.1", "", {}, "sha512-aN97NXWF6AWBTahfVOIrB/NShkzi5H7F9r1s9mD3cDj4Ko5f2qhhVoYMibXF7GlLveb/D2ioWay8lxI97Ven3g=="],
+
     "path-scurry/lru-cache": ["lru-cache@11.5.2", "", {}, "sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g=="],
 
+    "prosemirror-dropcursor/prosemirror-view": ["prosemirror-view@1.42.2", "", { "dependencies": { "prosemirror-model": "^1.25.8", "prosemirror-state": "^1.0.0", "prosemirror-transform": "^1.1.0" } }, "sha512-Pdg0l5kXm8aLDquFAnQFTCITg0q44sLqBlHlpsVLD9segdOao8TOfQdAhCrCXyVgPSRr6UDDROOIWA3bIrN9YQ=="],
+
+    "prosemirror-gapcursor/prosemirror-view": ["prosemirror-view@1.42.2", "", { "dependencies": { "prosemirror-model": "^1.25.8", "prosemirror-state": "^1.0.0", "prosemirror-transform": "^1.1.0" } }, "sha512-Pdg0l5kXm8aLDquFAnQFTCITg0q44sLqBlHlpsVLD9segdOao8TOfQdAhCrCXyVgPSRr6UDDROOIWA3bIrN9YQ=="],
+
+    "prosemirror-history/prosemirror-view": ["prosemirror-view@1.42.2", "", { "dependencies": { "prosemirror-model": "^1.25.8", "prosemirror-state": "^1.0.0", "prosemirror-transform": "^1.1.0" } }, "sha512-Pdg0l5kXm8aLDquFAnQFTCITg0q44sLqBlHlpsVLD9segdOao8TOfQdAhCrCXyVgPSRr6UDDROOIWA3bIrN9YQ=="],
+
+    "prosemirror-state/prosemirror-view": ["prosemirror-view@1.42.2", "", { "dependencies": { "prosemirror-model": "^1.25.8", "prosemirror-state": "^1.0.0", "prosemirror-transform": "^1.1.0" } }, "sha512-Pdg0l5kXm8aLDquFAnQFTCITg0q44sLqBlHlpsVLD9segdOao8TOfQdAhCrCXyVgPSRr6UDDROOIWA3bIrN9YQ=="],
+
+    "prosemirror-tables/prosemirror-view": ["prosemirror-view@1.42.2", "", { "dependencies": { "prosemirror-model": "^1.25.8", "prosemirror-state": "^1.0.0", "prosemirror-transform": "^1.1.0" } }, "sha512-Pdg0l5kXm8aLDquFAnQFTCITg0q44sLqBlHlpsVLD9segdOao8TOfQdAhCrCXyVgPSRr6UDDROOIWA3bIrN9YQ=="],
+
     "proxy-agent/lru-cache": ["lru-cache@7.18.3", "", {}, "sha512-jumlc0BIUrS3qJGgIkWZsyfAM7NCWiBcCDhnd+3NNM5KbBmLTgHVfWBcg6W+rLUsIpzpERPsvwUP7CckAQSOoA=="],
 
     "puppeteer-core/devtools-protocol": ["devtools-protocol@0.0.1608973", "", {}, "sha512-Tpm17fxYzt+J7VrGdc1k8YdRqS3YV7se/M6KeemEqvUbq/n7At1rWVuXMxQgpWkdwSdIEKYbU//Bve+Shm4YNQ=="],
diff --git a/bunfig.toml b/bunfig.toml
index 6da7343b..9164fdd6 100644
--- a/bunfig.toml
+++ b/bunfig.toml
@@ -18,14 +18,11 @@ minimumReleaseAgeExcludes = [
   "@firecrawl/anydoc-linux-x64-musl",
   "@firecrawl/anydoc-wasm",
   "@firecrawl/anydoc-win32-x64-msvc",
-  "@openeditor/custom-block",
   "@openeditor/document",
   "@openeditor/engine",
   "@openeditor/export",
-  "@openeditor/icons",
-  "@openeditor/mutations",
   "@openeditor/react",
-  "@openeditor/ui",
+  "@openeditor/native",
   "@ai-sdk/*",
   "@ai-sdk/gateway",
   "ai",
diff --git a/package.json b/package.json
index 37b4c529..91912ca4 100644
--- a/package.json
+++ b/package.json
@@ -45,42 +45,6 @@
   "overrides": {
     "convex": "1.43.0",
     "react": "19.2.8",
-    "react-dom": "19.2.8",
-    "@tiptap/core": "3.29.2",
-    "@tiptap/extension-blockquote": "3.29.2",
-    "@tiptap/extension-bold": "3.29.2",
-    "@tiptap/extension-bubble-menu": "3.29.2",
-    "@tiptap/extension-bullet-list": "3.29.2",
-    "@tiptap/extension-code": "3.29.2",
-    "@tiptap/extension-code-block": "3.29.2",
-    "@tiptap/extension-document": "3.29.2",
-    "@tiptap/extension-dropcursor": "3.29.2",
-    "@tiptap/extension-floating-menu": "3.29.2",
-    "@tiptap/extension-gapcursor": "3.29.2",
-    "@tiptap/extension-hard-break": "3.29.2",
-    "@tiptap/extension-heading": "3.29.2",
-    "@tiptap/extension-horizontal-rule": "3.29.2",
-    "@tiptap/extension-image": "3.29.2",
-    "@tiptap/extension-italic": "3.29.2",
-    "@tiptap/extension-link": "3.29.2",
-    "@tiptap/extension-list": "3.29.2",
-    "@tiptap/extension-list-item": "3.29.2",
-    "@tiptap/extension-list-keymap": "3.29.2",
-    "@tiptap/extension-ordered-list": "3.29.2",
-    "@tiptap/extension-paragraph": "3.29.2",
-    "@tiptap/extension-placeholder": "3.29.2",
-    "@tiptap/extension-strike": "3.29.2",
-    "@tiptap/extension-table": "3.29.2",
-    "@tiptap/extension-task-item": "3.29.2",
-    "@tiptap/extension-task-list": "3.29.2",
-    "@tiptap/extension-text": "3.29.2",
-    "@tiptap/extension-text-align": "3.29.2",
-    "@tiptap/extension-underline": "3.29.2",
-    "@tiptap/extension-unique-id": "3.29.2",
-    "@tiptap/extensions": "3.29.2",
-    "@tiptap/pm": "3.29.2",
-    "@tiptap/react": "3.29.2",
-    "@tiptap/starter-kit": "3.29.2",
-    "@tiptap/suggestion": "3.29.2"
+    "react-dom": "19.2.8"
   }
 }
diff --git a/packages/backend/convex/_generated/api.d.ts b/packages/backend/convex/_generated/api.d.ts
index 0d5f3dcf..164c296e 100644
--- a/packages/backend/convex/_generated/api.d.ts
+++ b/packages/backend/convex/_generated/api.d.ts
@@ -18,6 +18,7 @@ import type * as billingModel from "../billingModel.js";
 import type * as billingRetention from "../billingRetention.js";
 import type * as billing_webhook_model from "../billing_webhook_model.js";
 import type * as billing_webhooks from "../billing_webhooks.js";
+import type * as contentMigrations from "../contentMigrations.js";
 import type * as crons from "../crons.js";
 import type * as deploymentPreflight from "../deploymentPreflight.js";
 import type * as draftRestore from "../draftRestore.js";
@@ -107,6 +108,7 @@ declare const fullApi: ApiFromModules<{
   billingRetention: typeof billingRetention;
   billing_webhook_model: typeof billing_webhook_model;
   billing_webhooks: typeof billing_webhooks;
+  contentMigrations: typeof contentMigrations;
   crons: typeof crons;
   deploymentPreflight: typeof deploymentPreflight;
   draftRestore: typeof draftRestore;
diff --git a/packages/backend/convex/aiWorkspaces.ts b/packages/backend/convex/aiWorkspaces.ts
index b5d6ff4f..4f6deaac 100644
--- a/packages/backend/convex/aiWorkspaces.ts
+++ b/packages/backend/convex/aiWorkspaces.ts
@@ -1,5 +1,8 @@
 import { v } from "convex/values";
-import { fingerprintSnapshotPage, type Snapshot } from "@openeditor/mutations";
+import {
+  fingerprintSnapshotPage,
+  type Snapshot,
+} from "@baseblocks/openeditor-contracts/snapshots";
 import type { JsonObject } from "@openeditor/document";
 import { query } from "./_generated/server";
 import {
diff --git a/packages/backend/convex/contentMigrations.test.ts b/packages/backend/convex/contentMigrations.test.ts
new file mode 100644
index 00000000..519ccdc9
--- /dev/null
+++ b/packages/backend/convex/contentMigrations.test.ts
@@ -0,0 +1,158 @@
+import { expect, test } from "bun:test";
+import { convexTest } from "convex-test";
+import { makeFunctionReference } from "convex/server";
+import { getConvexSize } from "convex/values";
+import schema from "./schema";
+import {
+  hashOpenEditorContent,
+  parseOpenEditorDocument,
+} from "./pageContentFormat";
+
+const modules = {
+  "./_generated/api.ts": async () => ({}),
+  "./contentMigrations.ts": () => import("./contentMigrations"),
+};
+const migration = makeFunctionReference<"mutation">(
+  "contentMigrations:quickLinksV2",
+);
+
+test("content migration preserves revision identity, updates every hash, and is idempotent", async () => {
+  const t = convexTest(schema, modules);
+  const content = JSON.stringify({
+    type: "doc",
+    version: 1,
+    content: [
+      {
+        type: "customBlock",
+        attrs: {
+          "openeditor-id": "quick-links-1",
+          blockId: "baseblocks.quick-links",
+          version: 1,
+          data: {
+            links: [
+              {
+                id: "link-1",
+                title: "Example",
+                url: "https://example.com",
+                linkType: "website",
+              },
+            ],
+          },
+        },
+      },
+    ],
+  });
+  const contentHash = hashOpenEditorContent(content);
+  const ids = await t.run(async (ctx) => {
+    const siteId = await ctx.db.insert("sites", {
+      organizationId: "org",
+      name: "Site",
+      slug: "site",
+      createdBy: "user",
+      createdAt: 1,
+      updatedAt: 1,
+      visibility: "private",
+      settings: {},
+      draftRevision: 1,
+      nextReleaseNumber: 2,
+    });
+    const pageId = await ctx.db.insert("pages", {
+      siteId,
+      title: "Page",
+      slug: "page",
+      order: 0,
+      createdBy: "user",
+      createdAt: 1,
+      updatedAt: 1,
+    });
+    const payloadId = await ctx.db.insert("contentPayloads", {
+      siteId,
+      content,
+      contentHash,
+      contentSize: getConvexSize(content),
+      createdAt: 1,
+    });
+    const revisionId = await ctx.db.insert("contentRevisions", {
+      siteId,
+      payloadId,
+      contentHash,
+      contentSize: getConvexSize(content),
+      searchText: "Example",
+      libraryIds: [],
+      fileIds: [],
+      pageIds: [],
+      createdAt: 1,
+    });
+    const draftId = await ctx.db.insert("pageDocuments", {
+      siteId,
+      pageId,
+      revisionId,
+      contentHash,
+      contentSize: getConvexSize(content),
+      updatedAt: 1,
+    });
+    const releaseId = await ctx.db.insert("siteReleases", {
+      siteId,
+      number: 1,
+      name: "Release",
+      settings: {},
+      sourceDraftRevision: 1,
+      createdBy: "user",
+      createdAt: 1,
+      pageCount: 1,
+      changeCount: 1,
+    });
+    const releasePageId = await ctx.db.insert("releasePages", {
+      siteId,
+      releaseId,
+      pageId,
+      title: "Page",
+      slug: "page",
+      order: 0,
+      contentRevisionId: revisionId,
+      contentHash,
+      description: "Example",
+      updatedAt: 1,
+    });
+    return { payloadId, revisionId, draftId, releasePageId };
+  });
+  const args = {
+    payloadId: ids.payloadId,
+    expectedHash: contentHash,
+    apply: false,
+  };
+  expect((await t.mutation(migration, args)).changed).toBe(true);
+  expect((await t.run((ctx) => ctx.db.get(ids.payloadId)))?.content).toBe(
+    content,
+  );
+  await expect(
+    t.mutation(migration, { ...args, expectedHash: "stale", apply: true }),
+  ).rejects.toThrow("changed after");
+  expect((await t.mutation(migration, { ...args, apply: true })).changed).toBe(
+    true,
+  );
+  await t.run(async (ctx) => {
+    const payload = (await ctx.db.get(ids.payloadId))!;
+    expect(payload.contentHash).toBe(hashOpenEditorContent(payload.content));
+    expect(payload.contentSize).toBe(getConvexSize(payload.content));
+    expect(
+      parseOpenEditorDocument(payload.content).content[0]?.attrs?.version,
+    ).toBe(2);
+    expect((await ctx.db.get(ids.revisionId))?.contentHash).toBe(
+      payload.contentHash,
+    );
+    expect((await ctx.db.get(ids.draftId))?.revisionId).toBe(ids.revisionId);
+    expect((await ctx.db.get(ids.draftId))?.contentHash).toBe(
+      payload.contentHash,
+    );
+    expect((await ctx.db.get(ids.releasePageId))?.contentRevisionId).toBe(
+      ids.revisionId,
+    );
+    expect((await ctx.db.get(ids.releasePageId))?.contentHash).toBe(
+      payload.contentHash,
+    );
+  });
+  expect((await t.mutation(migration, { ...args, apply: true })).changed).toBe(
+    false,
+  );
+});
diff --git a/packages/backend/convex/contentMigrations.ts b/packages/backend/convex/contentMigrations.ts
new file mode 100644
index 00000000..517bb50c
--- /dev/null
+++ b/packages/backend/convex/contentMigrations.ts
@@ -0,0 +1,85 @@
+import { migrateQuickLinksDocuments } from "@baseblocks/custom-blocks/migrations";
+import { getConvexSize, v } from "convex/values";
+import { internalMutation } from "./_generated/server";
+import {
+  extractOpenEditorReferences,
+  extractOpenEditorText,
+  hashOpenEditorContent,
+  parseOpenEditorDocument,
+} from "./pageContentFormat";
+
+/** Explicit, idempotent storage migration; never called by document reads. */
+export const quickLinksV2 = internalMutation({
+  args: {
+    payloadId: v.id("contentPayloads"),
+    expectedHash: v.string(),
+    apply: v.boolean(),
+  },
+  handler: async (ctx, { payloadId, expectedHash, apply }) => {
+    const payload = await ctx.db.get(payloadId);
+    if (!payload) throw new Error("Content payload does not exist.");
+    const migrated = migrateQuickLinksDocuments(JSON.parse(payload.content));
+    if (!migrated.changed) return { changed: false };
+    if (payload.contentHash !== expectedHash)
+      throw new Error("Content changed after the migration audit.");
+    const document = parseOpenEditorDocument(migrated.document);
+    const content = JSON.stringify(document);
+    const contentHash = hashOpenEditorContent(content);
+    const contentSize = getConvexSize(content);
+    const revisions = await ctx.db
+      .query("contentRevisions")
+      .withIndex("by_payload", (q) => q.eq("payloadId", payloadId))
+      .collect();
+    if (!apply)
+      return {
+        changed: true,
+        revisions: revisions.length,
+        contentHash,
+        contentSize,
+      };
+    const references = extractOpenEditorReferences(document);
+    const libraryIds = [...references.libraryIds]
+      .flatMap((id) => ctx.db.normalizeId("documentLibraries", id) ?? [])
+      .sort();
+    const fileIds = [...references.fileIds]
+      .flatMap((id) => ctx.db.normalizeId("files", id) ?? [])
+      .sort();
+    const pageIds = [...references.pageIds]
+      .flatMap((id) => ctx.db.normalizeId("pages", id) ?? [])
+      .sort();
+    const searchText = extractOpenEditorText(document);
+    await ctx.db.patch(payloadId, { content, contentHash, contentSize });
+    // Preserve revision identities, including released history. Update every denormalized hash.
+    for (const revision of revisions) {
+      await ctx.db.patch(revision._id, {
+        contentHash,
+        contentSize,
+        searchText,
+        libraryIds,
+        fileIds,
+        pageIds,
+      });
+      const drafts = await ctx.db
+        .query("pageDocuments")
+        .withIndex("by_revision", (q) => q.eq("revisionId", revision._id))
+        .collect();
+      for (const draft of drafts)
+        await ctx.db.patch(draft._id, { contentHash, contentSize });
+      const releases = await ctx.db
+        .query("releasePages")
+        .withIndex("by_content_revision", (q) =>
+          q.eq("contentRevisionId", revision._id),
+        )
+        .collect();
+      for (const release of releases)
+        await ctx.db.patch(release._id, { contentHash });
+    }
+    const site = await ctx.db.get(payload.siteId);
+    // The operator runs the existing storage reconciliation once per returned organization.
+    return {
+      changed: true,
+      revisions: revisions.length,
+      organizationId: site?.organizationId,
+    };
+  },
+});
diff --git a/packages/backend/convex/model/aiWorkspaceFingerprint.test.ts b/packages/backend/convex/model/aiWorkspaceFingerprint.test.ts
index a2980eeb..443dc18c 100644
--- a/packages/backend/convex/model/aiWorkspaceFingerprint.test.ts
+++ b/packages/backend/convex/model/aiWorkspaceFingerprint.test.ts
@@ -4,7 +4,7 @@ import {
   fingerprintSnapshotManifest,
   fingerprintSnapshotPage,
   type Snapshot,
-} from "@openeditor/mutations";
+} from "@baseblocks/openeditor-contracts/snapshots";
 import { assertAiWorkspaceFingerprints } from "./aiWorkspaceFingerprint";
 
 const document = { type: "doc" as const, version: 1 as const, content: [] };
diff --git a/packages/backend/convex/model/aiWorkspaceFingerprint.ts b/packages/backend/convex/model/aiWorkspaceFingerprint.ts
index 378a71a5..d377ef4a 100644
--- a/packages/backend/convex/model/aiWorkspaceFingerprint.ts
+++ b/packages/backend/convex/model/aiWorkspaceFingerprint.ts
@@ -3,7 +3,7 @@ import {
   fingerprintSnapshotManifest,
   fingerprintSnapshotPage,
   type Snapshot,
-} from "@openeditor/mutations";
+} from "@baseblocks/openeditor-contracts/snapshots";
 import { AiWorkspaceValidationError } from "./aiWorkspaceBounds";
 
 export type AiPageFingerprintPrecondition = {
diff --git a/packages/backend/convex/model/releaseDiff.test.ts b/packages/backend/convex/model/releaseDiff.test.ts
index 558f3ac9..8369307d 100644
--- a/packages/backend/convex/model/releaseDiff.test.ts
+++ b/packages/backend/convex/model/releaseDiff.test.ts
@@ -41,15 +41,14 @@ describe("release detail diff", () => {
             attrs: {
               "openeditor-id": "quick-links-asset",
               blockId: "baseblocks.quick-links",
-              version: 1,
+              version: 2,
               data: {
                 links: [
                   {
                     id: "link-asset",
                     title: "Documentation",
                     url: "https://example.com",
-                    linkType: "website",
-                    artwork: { kind: "asset", assetId: "asset-123" },
+                    imageAssetId: "asset-123",
                   },
                 ],
               },
diff --git a/packages/backend/convex/pageContentFormat.test.ts b/packages/backend/convex/pageContentFormat.test.ts
index 3750c7b6..b30c412f 100644
--- a/packages/backend/convex/pageContentFormat.test.ts
+++ b/packages/backend/convex/pageContentFormat.test.ts
@@ -129,7 +129,7 @@ describe("parseOpenEditorDocument", () => {
           },
         ],
       }),
-    ).toThrow("No migration exists from version 1");
+    ).toThrow("Stored version 1 does not match supported version 2");
     expect(() =>
       parseOpenEditorDocument({
         type: "doc",
@@ -146,7 +146,7 @@ describe("parseOpenEditorDocument", () => {
           },
         ],
       }),
-    ).toThrow("Stored version 3 is newer");
+    ).toThrow("Stored version 3 does not match supported version 2");
     expect(() =>
       parseOpenEditorDocument({
         type: "doc",
diff --git a/packages/backend/package.json b/packages/backend/package.json
index 0ab05783..7f360db0 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -43,9 +43,7 @@
     "@convex-dev/workpool": "^0.4.9",
     "@firecrawl/anydoc": "0.1.9",
     "@noble/hashes": "2.0.1",
-    "@openeditor/custom-block": "0.0.55",
-    "@openeditor/document": "0.0.55",
-    "@openeditor/mutations": "0.0.55",
+    "@openeditor/document": "1.0.0",
     "@polar-sh/sdk": "0.49.0",
     "ai": "7.0.49",
     "better-auth": "^1.6.23",
diff --git a/packages/custom-blocks/package.json b/packages/custom-blocks/package.json
index 58e05fa6..ab96df86 100644
--- a/packages/custom-blocks/package.json
+++ b/packages/custom-blocks/package.json
@@ -8,7 +8,8 @@
   "exports": {
     ".": "./src/index.ts",
     "./editor": "./src/editor.tsx",
-    "./viewer": "./src/viewer.tsx"
+    "./viewer": "./src/viewer.tsx",
+    "./migrations": "./src/migrations.ts"
   },
   "scripts": {
     "check-types": "tsc --noEmit",
@@ -23,9 +24,9 @@
     "@dnd-kit/react": "^0.5.0",
     "@hugeicons/core-free-icons": "^4.2.3",
     "@hugeicons/react": "^1.1.9",
-    "@openeditor/custom-block": "0.0.55",
-    "@openeditor/document": "0.0.55",
-    "react": "19.2.7"
+    "@openeditor/document": "1.0.0",
+    "react": "19.2.7",
+    "@openeditor/react": "1.0.0"
   },
   "devDependencies": {
     "@baseblocks/tsconfig": "workspace:*",
diff --git a/packages/custom-blocks/src/decision-tree-editor.tsx b/packages/custom-blocks/src/decision-tree-editor.tsx
index 4dbab105..d3205e44 100644
--- a/packages/custom-blocks/src/decision-tree-editor.tsx
+++ b/packages/custom-blocks/src/decision-tree-editor.tsx
@@ -40,7 +40,7 @@ import { closestCenter } from "@dnd-kit/collision";
 import { PointerActivationConstraints, PointerSensor } from "@dnd-kit/dom";
 import { DragDropProvider, KeyboardSensor } from "@dnd-kit/react";
 import { isSortable, useSortable } from "@dnd-kit/react/sortable";
-import { defineOpenEditorCustomBlockEditor } from "@openeditor/custom-block/editor";
+import { defineOpenEditorCustomBlockEditor } from "@openeditor/react/extensions/editor";
 import {
   createDocument,
   getDocumentText,
diff --git a/packages/custom-blocks/src/directory-editor.tsx b/packages/custom-blocks/src/directory-editor.tsx
index eb0bf5f2..631b3d76 100644
--- a/packages/custom-blocks/src/directory-editor.tsx
+++ b/packages/custom-blocks/src/directory-editor.tsx
@@ -21,7 +21,7 @@ import { closestCenter } from "@dnd-kit/collision";
 import { PointerActivationConstraints, PointerSensor } from "@dnd-kit/dom";
 import { DragDropProvider, DragOverlay } from "@dnd-kit/react";
 import { isSortable, useSortable } from "@dnd-kit/react/sortable";
-import { defineOpenEditorCustomBlockEditor } from "@openeditor/custom-block/editor";
+import { defineOpenEditorCustomBlockEditor } from "@openeditor/react/extensions/editor";
 import { type RefObject, useEffect, useMemo, useRef, useState } from "react";
 import {
   addDirectory,
diff --git a/packages/custom-blocks/src/index.ts b/packages/custom-blocks/src/index.ts
index 4aefa628..20cae9c0 100644
--- a/packages/custom-blocks/src/index.ts
+++ b/packages/custom-blocks/src/index.ts
@@ -101,42 +101,6 @@ export const quickLinksBlock = defineOpenEditorCustomBlock({
   version: 2,
   createData: () => ({ links: [] }),
   parseData: parseQuickLinksData,
-  migrate: ({ version, data }) => {
-    const rawLinks = (data as { links?: unknown }).links;
-    if (version !== 1 || !Array.isArray(rawLinks))
-      throw new Error("Unsupported Quick Links version.");
-    const links = rawLinks.flatMap((item: unknown) => {
-      if (
-        !item ||
-        typeof item !== "object" ||
-        Array.isArray(item) ||
-        (item as Record<string, unknown>).linkType !== "website"
-      )
-        return [];
-      const link = item as Record<string, unknown>;
-      const artwork =
-        link.artwork &&
-        typeof link.artwork === "object" &&
-        !Array.isArray(link.artwork)
-          ? (link.artwork as Record<string, unknown>)
-          : null;
-      return [
-        {
-          id: link.id,
-          title: link.title,
-          url: link.url,
-          ...(artwork?.kind === "asset" && typeof artwork.assetId === "string"
-            ? { imageAssetId: artwork.assetId }
-            : {}),
-        },
-      ];
-    });
-    return {
-      blockId: "baseblocks.quick-links",
-      version: 2,
-      data: parseQuickLinksData({ links }),
-    };
-  },
   assets: ({ links }) =>
     links.flatMap((link, index) =>
       link.imageAssetId
diff --git a/packages/custom-blocks/src/migrations.ts b/packages/custom-blocks/src/migrations.ts
new file mode 100644
index 00000000..cd6b7c6a
--- /dev/null
+++ b/packages/custom-blocks/src/migrations.ts
@@ -0,0 +1,80 @@
+import { parseQuickLinksData } from "./quick-links";
+
+/** Explicit application migration. Never runs implicitly while rendering or editing. */
+export const migrateQuickLinksV1 = ({
+  version,
+  data,
+}: {
+  version: number;
+  data: unknown;
+}) => {
+  const rawLinks =
+    data && typeof data === "object"
+      ? (data as { links?: unknown }).links
+      : undefined;
+  if (version !== 1 || !Array.isArray(rawLinks))
+    throw new Error("Unsupported Quick Links version.");
+  const links = rawLinks.flatMap((item: unknown) => {
+    if (
+      !item ||
+      typeof item !== "object" ||
+      Array.isArray(item) ||
+      (item as Record<string, unknown>).linkType !== "website"
+    )
+      return [];
+    const link = item as Record<string, unknown>;
+    const artwork =
+      link.artwork &&
+      typeof link.artwork === "object" &&
+      !Array.isArray(link.artwork)
+        ? (link.artwork as Record<string, unknown>)
+        : null;
+    return [
+      {
+        id: link.id,
+        title: link.title,
+        url: link.url,
+        ...(artwork?.kind === "asset" && typeof artwork.assetId === "string"
+          ? { imageAssetId: artwork.assetId }
+          : {}),
+      },
+    ];
+  });
+  return {
+    blockId: "baseblocks.quick-links",
+    version: 2,
+    data: parseQuickLinksData({ links }),
+  };
+};
+
+/** Converts persisted Quick Links envelopes, including those in nested documents. */
+export function migrateQuickLinksDocuments<T>(source: T): {
+  document: T;
+  changed: boolean;
+} {
+  const document = structuredClone(source);
+  let changed = false;
+  const visit = (value: unknown): void => {
+    if (!value || typeof value !== "object") return;
+    if (Array.isArray(value)) {
+      value.forEach(visit);
+      return;
+    }
+    const node = value as Record<string, unknown>;
+    const attrs = node.attrs as Record<string, unknown> | undefined;
+    if (
+      node.type === "customBlock" &&
+      attrs?.blockId === "baseblocks.quick-links" &&
+      attrs.version === 1
+    ) {
+      node.attrs = {
+        ...attrs,
+        ...migrateQuickLinksV1({ version: 1, data: attrs.data }),
+      };
+      changed = true;
+    }
+    Object.values(node).forEach(visit);
+  };
+  visit(document);
+  return { document, changed };
+}
diff --git a/packages/custom-blocks/src/quick-link-asset-loader.ts b/packages/custom-blocks/src/quick-link-asset-loader.ts
index 0205168e..4236d505 100644
--- a/packages/custom-blocks/src/quick-link-asset-loader.ts
+++ b/packages/custom-blocks/src/quick-link-asset-loader.ts
@@ -1,4 +1,4 @@
-import type { OpenEditorCustomBlockViewerHost } from "@openeditor/custom-block/viewer";
+import type { OpenEditorCustomBlockViewerHost } from "@openeditor/react/extensions/viewer";
 
 /** Keeps stale or unauthorized managed-asset results out of rendered links. */
 export class QuickLinkAssetLoader {
diff --git a/packages/custom-blocks/src/quick-link-dialog.tsx b/packages/custom-blocks/src/quick-link-dialog.tsx
index fe440706..bcee54eb 100644
--- a/packages/custom-blocks/src/quick-link-dialog.tsx
+++ b/packages/custom-blocks/src/quick-link-dialog.tsx
@@ -17,7 +17,7 @@ import {
   TooltipContent,
   TooltipTrigger,
 } from "@baseblocks/ui/tooltip";
-import type { OpenEditorCustomBlockEditorHost } from "@openeditor/custom-block/editor";
+import type { OpenEditorCustomBlockEditorHost } from "@openeditor/react/extensions/editor";
 import { useEffect, useRef, useState } from "react";
 import { QuickLinkEditorAsset } from "./quick-link-editor-asset";
 import type { QuickLink } from "./quick-links";
@@ -63,13 +63,13 @@ export function QuickLinkDialog({
   const mounted = useRef(true);
   const resolved = host.links?.resolve({ href: draft.url, kind: "website" });
 
-  useEffect(
-    () => () => {
+  useEffect(() => {
+    mounted.current = true;
+    return () => {
       mounted.current = false;
       operation.current += 1;
-    },
-    [],
-  );
+    };
+  }, []);
   useEffect(() => {
     draftRef.current = draft;
   }, [draft]);
@@ -121,7 +121,9 @@ export function QuickLinkDialog({
               id: draft.id ?? crypto.randomUUID(),
               title: draft.title.trim(),
               url: draft.url.trim(),
-              imageAssetId: draft.image.currentId,
+              ...(draft.image.currentId
+                ? { imageAssetId: draft.image.currentId }
+                : {}),
             });
           }}
         >
diff --git a/packages/custom-blocks/src/quick-link-editor-asset.tsx b/packages/custom-blocks/src/quick-link-editor-asset.tsx
index 8066af75..1b5953e3 100644
--- a/packages/custom-blocks/src/quick-link-editor-asset.tsx
+++ b/packages/custom-blocks/src/quick-link-editor-asset.tsx
@@ -2,7 +2,7 @@
 
 import { Image01Icon } from "@hugeicons/core-free-icons";
 import { HugeiconsIcon } from "@hugeicons/react";
-import type { OpenEditorCustomBlockEditorHost } from "@openeditor/custom-block/editor";
+import type { OpenEditorCustomBlockEditorHost } from "@openeditor/react/extensions/editor";
 import { useEffect, useRef, useState } from "react";
 import { QuickLinkAssetLoader } from "./quick-link-asset-loader";
 
diff --git a/packages/custom-blocks/src/quick-links-editor.tsx b/packages/custom-blocks/src/quick-links-editor.tsx
index 7699ac7d..88107b29 100644
--- a/packages/custom-blocks/src/quick-links-editor.tsx
+++ b/packages/custom-blocks/src/quick-links-editor.tsx
@@ -6,7 +6,7 @@ import {
   Link02Icon,
 } from "@hugeicons/core-free-icons";
 import { HugeiconsIcon } from "@hugeicons/react";
-import { defineOpenEditorCustomBlockEditor } from "@openeditor/custom-block/editor";
+import { defineOpenEditorCustomBlockEditor } from "@openeditor/react/extensions/editor";
 import { useState } from "react";
 import { quickLinksBlock } from "./index";
 import { QuickLinkDialog } from "./quick-link-dialog";
diff --git a/packages/custom-blocks/src/quick-links.test.ts b/packages/custom-blocks/src/quick-links.test.ts
index d2190b4a..d62f56ad 100644
--- a/packages/custom-blocks/src/quick-links.test.ts
+++ b/packages/custom-blocks/src/quick-links.test.ts
@@ -6,12 +6,12 @@ import {
   updateQuickLink,
   safeQuickLinkHref,
 } from "./quick-links";
-import { quickLinksBlock } from "./index";
+import { migrateQuickLinksV1 } from "./migrations";
 
 describe("quick links data", () => {
   test("migrates website links and removes unsupported app links and icons", () => {
     expect(
-      quickLinksBlock.migrate?.({
+      migrateQuickLinksV1({
         version: 1,
         data: {
           links: [
diff --git a/packages/custom-blocks/src/viewer.tsx b/packages/custom-blocks/src/viewer.tsx
index fc288be1..fd19be94 100644
--- a/packages/custom-blocks/src/viewer.tsx
+++ b/packages/custom-blocks/src/viewer.tsx
@@ -2,7 +2,7 @@
 
 /* oxlint-disable react-doctor/nextjs-no-img-element -- Managed assets are host-resolved private or blob URLs. This framework-neutral package must not depend on the Next.js image pipeline. */
 
-import { defineOpenEditorCustomBlockViewer } from "@openeditor/custom-block/viewer";
+import { defineOpenEditorCustomBlockViewer } from "@openeditor/react/extensions/viewer";
 import { getDocumentText } from "@openeditor/document";
 import {
   ArrowLeft01Icon,
@@ -22,7 +22,7 @@ import {
   SelectValue,
 } from "@baseblocks/ui/select";
 import { useEffect, useMemo, useRef, useState } from "react";
-import type { OpenEditorCustomBlockViewerHost } from "@openeditor/custom-block/viewer";
+import type { OpenEditorCustomBlockViewerHost } from "@openeditor/react/extensions/viewer";
 import type { QuickLink } from "./quick-links";
 import { decisionTreeBlock, directoryBlock, quickLinksBlock } from "./index";
 import {
diff --git a/packages/openeditor-contracts/package.json b/packages/openeditor-contracts/package.json
index bd29a537..16b1ad5e 100644
--- a/packages/openeditor-contracts/package.json
+++ b/packages/openeditor-contracts/package.json
@@ -10,7 +10,8 @@
     "./block-registry": "./src/block-registry.ts",
     "./core-blocks": "./src/core-blocks.ts",
     "./page-projection": "./src/page-projection.ts",
-    "./portable-export": "./src/portable-export.ts"
+    "./portable-export": "./src/portable-export.ts",
+    "./snapshots": "./src/snapshots/index.ts"
   },
   "scripts": {
     "check-types": "tsc --noEmit",
@@ -19,8 +20,9 @@
   },
   "dependencies": {
     "@baseblocks/custom-blocks": "workspace:*",
-    "@openeditor/document": "0.0.55",
-    "@openeditor/engine": "0.0.55"
+    "@openeditor/document": "1.0.0",
+    "@openeditor/engine": "1.0.0",
+    "valibot": "^1.4.2"
   },
   "devDependencies": {
     "@baseblocks/tsconfig": "workspace:*",
diff --git a/packages/openeditor-contracts/src/index.ts b/packages/openeditor-contracts/src/index.ts
index a096f5ae..03a379d3 100644
--- a/packages/openeditor-contracts/src/index.ts
+++ b/packages/openeditor-contracts/src/index.ts
@@ -1,9 +1,9 @@
+import * as v from "valibot";
 import {
   createDocument,
   createOpenEditorDocumentContract,
   validateDocument,
   type BlockSpec,
-  type OpenEditorValueSchema,
 } from "@openeditor/document";
 import { validateOpenEditorEngineDocument } from "@openeditor/engine";
 import {
@@ -13,40 +13,18 @@ import {
   defaultNodeSpecs,
 } from "@openeditor/document";
 
-const text = (maxLength: number): OpenEditorValueSchema => ({
-  type: "string",
-  maxLength,
+const tabSchema = v.strictObject({
+  id: v.pipe(v.string(), v.nonEmpty(), v.maxLength(200)),
+  label: v.pipe(v.string(), v.maxLength(500)),
+  document: v.custom(
+    (value) => validateBaseBlocksNestedDocument(value).valid,
+    ({ input }) =>
+      validateBaseBlocksNestedDocument(input)
+        .issues.slice(0, 10)
+        .map((issue) => `Nested tab document ${issue.path}: ${issue.message}`)
+        .join("; "),
+  ),
 });
-const identifier: OpenEditorValueSchema = {
-  type: "string",
-  minLength: 1,
-  maxLength: 200,
-};
-
-const tabSchema: OpenEditorValueSchema = {
-  type: "object",
-  properties: {
-    id: identifier,
-    label: text(500),
-    document: {
-      type: "object",
-      additionalProperties: true,
-      validate: (value) => {
-        const result = validateBaseBlocksNestedDocument(value);
-        return result.valid
-          ? null
-          : result.issues
-              .slice(0, 10)
-              .map(
-                (issue) =>
-                  `Nested tab document ${issue.path}: ${issue.message}`,
-              );
-      },
-    },
-  },
-  required: ["id", "label", "document"],
-  additionalProperties: false,
-};
 
 /** Page Tabs is a page-level BaseBlocks container, not an installable block. */
 export const pageTabsBlockSpec: BlockSpec = {
@@ -76,39 +54,19 @@ export const pageTabsBlockSpec: BlockSpec = {
     plainText: "unsupported",
   },
   schema: {
-    attributes: {
-      properties: {
-        tabs: {
-          type: "object",
-          properties: {
-            tabs: {
-              type: "array",
-              items: tabSchema,
-              minItems: 1,
-              maxItems: 100,
-              validate: (value) => {
-                if (!Array.isArray(value)) return null;
-                const ids = value.flatMap((item) =>
-                  item &&
-                  typeof item === "object" &&
-                  !Array.isArray(item) &&
-                  typeof (item as { id?: unknown }).id === "string"
-                    ? [(item as { id: string }).id]
-                    : [],
-                );
-                return new Set(ids).size === ids.length
-                  ? null
-                  : "Page Tab IDs must be unique.";
-              },
-            },
-          },
-          required: ["tabs"],
-          additionalProperties: false,
-        },
-      },
-      required: ["tabs"],
-      additionalProperties: false,
-    },
+    attributes: v.strictObject({
+      tabs: v.strictObject({
+        tabs: v.pipe(
+          v.array(tabSchema),
+          v.minLength(1),
+          v.maxLength(100),
+          v.check(
+            (tabs) => new Set(tabs.map((tab) => tab.id)).size === tabs.length,
+            "Page Tab IDs must be unique.",
+          ),
+        ),
+      }),
+    }),
     content: false,
     text: "forbidden",
     marks: false,
diff --git a/packages/openeditor-contracts/src/snapshots/fingerprints.ts b/packages/openeditor-contracts/src/snapshots/fingerprints.ts
new file mode 100644
index 00000000..06af90bd
--- /dev/null
+++ b/packages/openeditor-contracts/src/snapshots/fingerprints.ts
@@ -0,0 +1,74 @@
+import {
+  canonicalSerializeJson,
+  fingerprintOpenEditorDocument,
+  type JsonValue,
+} from "@openeditor/document";
+import {
+  OPENEDITOR_MANIFEST_FORMAT,
+  OPENEDITOR_MUTATION_VERSION,
+  type Snapshot,
+  type SnapshotPage,
+} from "./types";
+
+const textEncoder = new TextEncoder();
+
+const fingerprintJson = async (value: unknown): Promise<string> => {
+  const cryptoApi = globalThis.crypto;
+  if (!cryptoApi?.subtle) {
+    throw new Error(
+      "Web Crypto SHA-256 support is required to fingerprint OpenEditor data.",
+    );
+  }
+  const digest = await cryptoApi.subtle.digest(
+    "SHA-256",
+    textEncoder.encode(`${canonicalSerializeJson(value)}\n`),
+  );
+  return [...new Uint8Array(digest)]
+    .map((byte) => byte.toString(16).padStart(2, "0"))
+    .join("");
+};
+
+export const pagePath = (pageId: string): string => `pages/${pageId}.json`;
+
+const manifestPageValue = (page: SnapshotPage): JsonValue => ({
+  id: page.id,
+  file: pagePath(page.id),
+  title: page.title,
+  ...(page.slug !== undefined ? { slug: page.slug } : {}),
+  ...(page.route !== undefined ? { route: page.route } : {}),
+  ...(page.parentId !== undefined ? { parentId: page.parentId } : {}),
+  ...(page.order !== undefined ? { order: page.order } : {}),
+  ...(page.metadata !== undefined ? { metadata: page.metadata } : {}),
+});
+
+/**
+ * Builds the established `openeditor.site` value without exposing its legacy
+ * vocabulary as TypeScript contracts.
+ */
+export const createSnapshotManifest = (snapshot: Snapshot): JsonValue => ({
+  format: OPENEDITOR_MANIFEST_FORMAT,
+  version: OPENEDITOR_MUTATION_VERSION,
+  project: {
+    id: snapshot.id,
+    revision: snapshot.revision,
+    title: snapshot.title,
+    ...(snapshot.metadata !== undefined ? { metadata: snapshot.metadata } : {}),
+  },
+  pages: snapshot.pages.map(manifestPageValue),
+});
+
+export const fingerprintSnapshotPage = async (
+  page: SnapshotPage,
+): Promise<string> => {
+  const documentFingerprint = fingerprintOpenEditorDocument(page.document);
+  const metadataFingerprint = await fingerprintJson(manifestPageValue(page));
+  return `oep1-${documentFingerprint}-${metadataFingerprint}`;
+};
+
+export const fingerprintSnapshot = async (
+  snapshot: Snapshot,
+): Promise<string> => fingerprintJson(snapshot);
+
+export const fingerprintSnapshotManifest = async (
+  snapshot: Snapshot,
+): Promise<string> => fingerprintJson(createSnapshotManifest(snapshot));
diff --git a/packages/openeditor-contracts/src/snapshots/index.ts b/packages/openeditor-contracts/src/snapshots/index.ts
new file mode 100644
index 00000000..ede0e3ee
--- /dev/null
+++ b/packages/openeditor-contracts/src/snapshots/index.ts
@@ -0,0 +1,3 @@
+export * from "./fingerprints";
+export * from "./mutation";
+export * from "./types";
diff --git a/packages/openeditor-contracts/src/snapshots/mutation.test.ts b/packages/openeditor-contracts/src/snapshots/mutation.test.ts
new file mode 100644
index 00000000..735d51ba
--- /dev/null
+++ b/packages/openeditor-contracts/src/snapshots/mutation.test.ts
@@ -0,0 +1,155 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import {
+  OPENEDITOR_MUTATION_FORMAT,
+  OPENEDITOR_MUTATION_VERSION,
+  applyMutation,
+  checkMutationPreconditions,
+  createSnapshotManifest,
+  fingerprintSnapshot,
+  fingerprintSnapshotManifest,
+  fingerprintSnapshotPage,
+  pagePath,
+  runTransactionalMutationStoreConformance,
+} from "./index";
+
+const makePage = (title = "Home") => ({
+  id: "home",
+  title,
+  route: "/",
+  order: 0,
+  document: {
+    type: "doc",
+    version: 1,
+    meta: { id: "home", title },
+    content: [
+      {
+        type: "heading",
+        attrs: { level: 1, "openeditor-id": "oe_heading_home" },
+        content: [{ type: "text", text: title }],
+      },
+      {
+        type: "paragraph",
+        attrs: { "openeditor-id": "oe_paragraph_home" },
+        content: [{ type: "text", text: "Welcome" }],
+      },
+    ],
+  },
+});
+
+const makeSnapshot = () => ({
+  id: "site_alpha",
+  revision: "revision_7",
+  title: "Documentation",
+  metadata: { locale: "en" },
+  pages: [makePage()],
+});
+
+const makeMutation = async (current, next) => ({
+  format: OPENEDITOR_MUTATION_FORMAT,
+  version: OPENEDITOR_MUTATION_VERSION,
+  snapshotId: current.id,
+  expectedRevision: current.revision,
+  expectedSnapshotFingerprint: await fingerprintSnapshot(current),
+  expectedManifestFingerprint: await fingerprintSnapshotManifest(current),
+  nextManifestFingerprint: await fingerprintSnapshotManifest(next),
+  nextSnapshot: next,
+  pageChanges: [
+    {
+      kind: "update",
+      pageId: "home",
+      expectedFingerprint: await fingerprintSnapshotPage(current.pages[0]),
+      nextFingerprint: await fingerprintSnapshotPage(next.pages[0]),
+      next: next.pages[0],
+    },
+  ],
+});
+
+test("fingerprints preserve the established manifest and page wire values", async () => {
+  const snapshot = makeSnapshot();
+
+  assert.equal(pagePath("home"), "pages/home.json");
+  assert.deepEqual(createSnapshotManifest(snapshot), {
+    format: "openeditor.site",
+    version: 1,
+    project: {
+      id: "site_alpha",
+      revision: "revision_7",
+      title: "Documentation",
+      metadata: { locale: "en" },
+    },
+    pages: [
+      {
+        id: "home",
+        file: "pages/home.json",
+        title: "Home",
+        route: "/",
+        order: 0,
+      },
+    ],
+  });
+  assert.equal(
+    await fingerprintSnapshotPage(snapshot.pages[0]),
+    "oep1-oe1-fnv1a64-497bb41406b875c1-7f26c0d6cd9efd2b28be9ddb31b7903a3c6e8f853544586a2556f17822bafe3a",
+  );
+  assert.equal(
+    await fingerprintSnapshot(snapshot),
+    "775a5051f1db9114c70a494e7d0a585f548ad830d04b933a6e31a7f2fcfa15eb",
+  );
+  assert.equal(
+    await fingerprintSnapshotManifest(snapshot),
+    "59e0d22546cbb233fab3b536449f13176a87cb9f3758ee51a62baa6ca8043b7b",
+  );
+});
+
+test("preconditions accept one complete mutation and reject its replay", async () => {
+  const current = makeSnapshot();
+  const next = structuredClone(current);
+  next.pages[0] = makePage("Welcome");
+  const mutation = await makeMutation(current, next);
+
+  const accepted = await checkMutationPreconditions(current, mutation);
+  assert.equal(accepted.applied, true);
+  assert.deepEqual(accepted.snapshot, next);
+  assert.notEqual(accepted.snapshot, next);
+
+  const replay = await checkMutationPreconditions(next, mutation);
+  assert.deepEqual(replay, {
+    applied: false,
+    reason: "snapshot_fingerprint_mismatch",
+  });
+});
+
+test("atomic apply delegates to the store and the conformance test detects replay", async () => {
+  let current = makeSnapshot();
+  const next = structuredClone(current);
+  next.pages[0] = makePage("Welcome");
+  const mutation = await makeMutation(current, next);
+  let calls = 0;
+  const store = {
+    async applyMutationAtomically(value) {
+      calls += 1;
+      const result = await checkMutationPreconditions(current, value);
+      if (result.applied) current = result.snapshot;
+      return result;
+    },
+  };
+
+  assert.equal((await applyMutation(store, mutation)).applied, true);
+  assert.equal(calls, 1);
+
+  current = makeSnapshot();
+  calls = 0;
+  const result = await runTransactionalMutationStoreConformance(
+    store,
+    mutation,
+  );
+  assert.equal(result.conformant, true);
+  assert.equal(result.first.applied, true);
+  assert.deepEqual(result.replay, {
+    applied: false,
+    reason: "snapshot_fingerprint_mismatch",
+  });
+  assert.equal(calls, 2);
+});
diff --git a/packages/openeditor-contracts/src/snapshots/mutation.ts b/packages/openeditor-contracts/src/snapshots/mutation.ts
new file mode 100644
index 00000000..b17308a4
--- /dev/null
+++ b/packages/openeditor-contracts/src/snapshots/mutation.ts
@@ -0,0 +1,92 @@
+import {
+  fingerprintSnapshot,
+  fingerprintSnapshotManifest,
+  fingerprintSnapshotPage,
+} from "./fingerprints";
+import type {
+  Mutation,
+  MutationApplyResult,
+  Snapshot,
+  TransactionalMutationConformanceResult,
+  TransactionalMutationStore,
+} from "./types";
+
+/** Delegates only to a provider that explicitly guarantees atomic CAS. */
+export const applyMutation = (
+  store: TransactionalMutationStore,
+  mutation: Mutation,
+): Promise<MutationApplyResult> => store.applyMutationAtomically(mutation);
+
+/**
+ * Pure precondition helper for use inside a provider transaction. Calling it
+ * before a later write does not make that write atomic.
+ */
+export const checkMutationPreconditions = async (
+  current: Snapshot,
+  mutation: Mutation,
+): Promise<MutationApplyResult> => {
+  if (current.id !== mutation.snapshotId) {
+    return { applied: false, reason: "snapshot_id_mismatch" };
+  }
+  if (current.revision !== mutation.expectedRevision) {
+    return { applied: false, reason: "snapshot_revision_mismatch" };
+  }
+  if (
+    (await fingerprintSnapshot(current)) !==
+    mutation.expectedSnapshotFingerprint
+  ) {
+    return { applied: false, reason: "snapshot_fingerprint_mismatch" };
+  }
+  if (
+    (await fingerprintSnapshotManifest(current)) !==
+    mutation.expectedManifestFingerprint
+  ) {
+    return { applied: false, reason: "manifest_fingerprint_mismatch" };
+  }
+
+  const pages = new Map(current.pages.map((page) => [page.id, page]));
+  for (const change of mutation.pageChanges) {
+    const page = pages.get(change.pageId);
+    if (change.kind === "create") {
+      if (page) {
+        return {
+          applied: false,
+          reason: "page_create_collision",
+          pageId: change.pageId,
+        };
+      }
+      continue;
+    }
+    if (
+      !page ||
+      (await fingerprintSnapshotPage(page)) !== change.expectedFingerprint
+    ) {
+      return {
+        applied: false,
+        reason: "page_fingerprint_mismatch",
+        pageId: change.pageId,
+      };
+    }
+  }
+
+  return { applied: true, snapshot: structuredClone(mutation.nextSnapshot) };
+};
+
+/**
+ * Minimal destructive conformance exercise for a disposable provider fixture:
+ * the first CAS must commit and an identical replay must be rejected.
+ */
+export const runTransactionalMutationStoreConformance = async (
+  store: TransactionalMutationStore,
+  mutation: Mutation,
+): Promise<TransactionalMutationConformanceResult> => {
+  const first = await store.applyMutationAtomically(mutation);
+  const replay = await store.applyMutationAtomically(mutation);
+  const failures = [
+    ...(!first.applied ? ["A valid first mutation was rejected."] : []),
+    ...(replay.applied
+      ? ["An already-applied mutation was accepted again."]
+      : []),
+  ];
+  return { conformant: failures.length === 0, first, replay, failures };
+};
diff --git a/packages/openeditor-contracts/src/snapshots/types.ts b/packages/openeditor-contracts/src/snapshots/types.ts
new file mode 100644
index 00000000..57b4f8f1
--- /dev/null
+++ b/packages/openeditor-contracts/src/snapshots/types.ts
@@ -0,0 +1,92 @@
+import type { JsonObject, OpenEditorDocument } from "@openeditor/document";
+
+export const OPENEDITOR_MUTATION_VERSION = 1 as const;
+
+/** Retained for serialized mutation compatibility. */
+export const OPENEDITOR_MUTATION_FORMAT =
+  "openeditor.project-changeset" as const;
+
+/** Retained for existing snapshot-manifest fingerprints. */
+export const OPENEDITOR_MANIFEST_FORMAT = "openeditor.site" as const;
+
+export type SnapshotPage = {
+  id: string;
+  title: string;
+  document: OpenEditorDocument;
+  slug?: string;
+  route?: string;
+  parentId?: string | null;
+  order?: number;
+  metadata?: JsonObject;
+};
+
+export type Snapshot = {
+  id: string;
+  revision: string;
+  title: string;
+  pages: readonly SnapshotPage[];
+  metadata?: JsonObject;
+};
+
+export type CreatePageChange = {
+  kind: "create";
+  pageId: string;
+  expectedFingerprint: null;
+  nextFingerprint: string;
+  next: SnapshotPage;
+};
+
+export type UpdatePageChange = {
+  kind: "update";
+  pageId: string;
+  expectedFingerprint: string;
+  nextFingerprint: string;
+  next: SnapshotPage;
+};
+
+export type DeletePageChange = {
+  kind: "delete";
+  pageId: string;
+  expectedFingerprint: string;
+};
+
+export type PageChange = CreatePageChange | UpdatePageChange | DeletePageChange;
+
+export type Mutation = {
+  format: typeof OPENEDITOR_MUTATION_FORMAT;
+  version: typeof OPENEDITOR_MUTATION_VERSION;
+  snapshotId: string;
+  expectedRevision: string;
+  expectedSnapshotFingerprint: string;
+  expectedManifestFingerprint: string;
+  nextManifestFingerprint: string;
+  nextSnapshot: Snapshot;
+  pageChanges: readonly PageChange[];
+};
+
+export type MutationConflictReason =
+  | "snapshot_id_mismatch"
+  | "snapshot_revision_mismatch"
+  | "snapshot_fingerprint_mismatch"
+  | "manifest_fingerprint_mismatch"
+  | "page_fingerprint_mismatch"
+  | "page_create_collision";
+
+export type MutationApplyResult =
+  | { applied: true; snapshot: Snapshot }
+  | { applied: false; reason: MutationConflictReason; pageId?: string };
+
+/**
+ * The comparison and commit must occur in one database or storage
+ * transaction. OpenEditor provides no non-atomic fallback.
+ */
+export interface TransactionalMutationStore {
+  applyMutationAtomically(mutation: Mutation): Promise<MutationApplyResult>;
+}
+
+export type TransactionalMutationConformanceResult = {
+  conformant: boolean;
+  first: MutationApplyResult;
+  replay: MutationApplyResult;
+  failures: readonly string[];
+};