diff --git a/docs/package.json b/docs/package.json
index 3581fd3d..2ad3f3ae 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -21,7 +21,9 @@
     "react-dom": "^16.13.1",
     "remark-container": "^0.1.2",
     "typescript": "^4.0.3",
-    "vue-github-button": "^1.1.2"
+    "vue-github-button": "^1.1.2",
+    "y-webrtc": "^10.1.6",
+    "yjs": "^13.3.2"
   },
   "devDependencies": {
     "@babel/plugin-proposal-optional-chaining": "^7.11.0",
diff --git a/docs/src/demos/Examples/Collaboration/index.spec.js b/docs/src/demos/Examples/Collaboration/index.spec.js
new file mode 100644
index 00000000..8e0e9403
--- /dev/null
+++ b/docs/src/demos/Examples/Collaboration/index.spec.js
@@ -0,0 +1,5 @@
+context('/examples/collaboration', () => {
+  before(() => {
+    cy.visit('/examples/collaboration')
+  })
+})
diff --git a/docs/src/demos/Examples/Collaboration/index.vue b/docs/src/demos/Examples/Collaboration/index.vue
new file mode 100644
index 00000000..112c8e78
--- /dev/null
+++ b/docs/src/demos/Examples/Collaboration/index.vue
@@ -0,0 +1,63 @@
+<template>
+  <editor-content :editor="editor" />
+</template>
+
+<script>
+import { Editor, EditorContent } from '@tiptap/vue-starter-kit'
+import Document from '@tiptap/extension-document'
+import Paragraph from '@tiptap/extension-paragraph'
+import Text from '@tiptap/extension-text'
+import Collaboration from '@tiptap/extension-collaboration'
+import CollaborationCursor from '@tiptap/extension-collaboration-cursor'
+import * as Y from 'yjs'
+import { WebrtcProvider } from 'y-webrtc'
+
+export default {
+  components: {
+    EditorContent,
+  },
+
+  data() {
+    return {
+      ydoc: null,
+      provider: null,
+      type: null,
+      editor: null,
+    }
+  },
+
+  mounted() {
+    this.ydoc = new Y.Doc()
+    this.provider = new WebrtcProvider('example', this.ydoc)
+    this.type = this.ydoc.getXmlFragment('prosemirror')
+
+    this.editor = new Editor({
+      // TODO: This is added by every new user.
+      // content: `
+      //   <p>Example Text</p>
+      // `,
+      extensions: [
+        Document(),
+        Paragraph(),
+        Text(),
+        Collaboration({
+          provider: this.provider,
+          type: this.type,
+        }),
+        CollaborationCursor({
+          provider: this.provider,
+          name: 'Other User',
+          color: '#d6336c',
+        }),
+      ],
+    })
+  },
+
+  beforeDestroy() {
+    this.editor.destroy()
+    this.provider.destroy()
+  },
+}
+</script>
+
+<style lang="scss" src="./style.scss">
diff --git a/docs/src/demos/Examples/Collaboration/style.scss b/docs/src/demos/Examples/Collaboration/style.scss
new file mode 100644
index 00000000..2d7b502b
--- /dev/null
+++ b/docs/src/demos/Examples/Collaboration/style.scss
@@ -0,0 +1,32 @@
+/* this is a rough fix for the first cursor position when the first paragraph is empty */
+.ProseMirror > .collaboration-cursor:first-child {
+  margin-top: 16px;
+}
+.ProseMirror p:first-child, .ProseMirror h1:first-child, .ProseMirror h2:first-child, .ProseMirror h3:first-child, .ProseMirror h4:first-child, .ProseMirror h5:first-child, .ProseMirror h6:first-child {
+  margin-top: 16px
+}
+/* This gives the remote user caret. The colors are automatically overwritten*/
+.collaboration-cursor {
+  position: relative;
+  margin-left: -1px;
+  margin-right: -1px;
+  border-left: 1px solid black;
+  border-right: 1px solid black;
+  word-break: normal;
+  pointer-events: none;
+}
+/* This renders the username above the caret */
+.collaboration-cursor > div {
+  position: absolute;
+  top: -1.05em;
+  left: -1px;
+  font-size: 13px;
+  font-style: normal;
+  font-weight: normal;
+  line-height: normal;
+  user-select: none;
+  color: white;
+  padding: 0.1rem 0.3rem;
+  border-radius: 3px;
+  white-space: nowrap;
+}
diff --git a/docs/src/docPages/api/extensions/collaboration-cursor.md b/docs/src/docPages/api/extensions/collaboration-cursor.md
new file mode 100644
index 00000000..7f003c1a
--- /dev/null
+++ b/docs/src/docPages/api/extensions/collaboration-cursor.md
@@ -0,0 +1,2 @@
+# Collaboration Cursor
+
diff --git a/docs/src/docPages/api/extensions/collaboration.md b/docs/src/docPages/api/extensions/collaboration.md
index 4e3c5805..c09b3fef 100644
--- a/docs/src/docPages/api/extensions/collaboration.md
+++ b/docs/src/docPages/api/extensions/collaboration.md
@@ -1,2 +1,2 @@
 # Collaboration
-Enables you to collaborate with others on one document.
\ No newline at end of file
+Enables you to collaborate with others on one document.
diff --git a/docs/src/docPages/examples/collaboration.md b/docs/src/docPages/examples/collaboration.md
index 3c637390..97e86848 100644
--- a/docs/src/docPages/examples/collaboration.md
+++ b/docs/src/docPages/examples/collaboration.md
@@ -1,3 +1,5 @@
 # Collaboration
 
-<demo name="Examples/Collaboration" />
\ No newline at end of file
+<!-- <demo name="Examples/Collaboration" :show-source="false"/> -->
+
+<demo name="Examples/Collaboration" />
diff --git a/docs/src/links.yaml b/docs/src/links.yaml
index de4e586a..e1dda25e 100644
--- a/docs/src/links.yaml
+++ b/docs/src/links.yaml
@@ -56,9 +56,8 @@
         #   draft: true
         # - title: Focus
         #   link: /examples/focus
-        # - title: Collaboration
-        #   link: /examples/collaboration
-        #   draft: true
+        - title: Collaboration
+          link: /examples/collaboration
         # - title: Title
         #   link: /examples/title
         #   draft: true
@@ -117,9 +116,12 @@
         # - title: CodeBlockHighlight
         #   link: /api/extensions/code-block-highlight
         #   draft: true
-        # - title: Collaboration
-        #   link: /api/extensions/collaboration
-        #   draft: true
+        - title: Collaboration
+          link: /api/extensions/collaboration
+          draft: true
+        - title: CollaborationCursor
+          link: /api/extensions/collaboration-cursor
+          draft: true
         - title: Document
           link: /api/extensions/document
         - title: HardBreak
diff --git a/packages/extension-collaboration-cursor/index.ts b/packages/extension-collaboration-cursor/index.ts
new file mode 100644
index 00000000..287f56fd
--- /dev/null
+++ b/packages/extension-collaboration-cursor/index.ts
@@ -0,0 +1,44 @@
+import { Extension } from '@tiptap/core'
+import { yCursorPlugin } from 'y-prosemirror'
+
+export interface CollaborationCursorOptions {
+  name: string,
+  color: string,
+  provider: any,
+  render (user: { name: string, color: string }): HTMLElement,
+}
+
+export default new Extension<CollaborationCursorOptions>()
+  .name('collaboration_cursor')
+  .defaults({
+    provider: null,
+    name: 'Someone',
+    color: '#cccccc',
+    render: user => {
+      const cursor = document.createElement('span')
+      cursor.classList.add('collaboration-cursor')
+      cursor.setAttribute('style', `border-color: ${user.color}`)
+
+      const label = document.createElement('div')
+      label.setAttribute('style', `background-color: ${user.color}`)
+      label.insertBefore(document.createTextNode(user.name), null)
+      cursor.insertBefore(label, null)
+
+      return cursor
+    },
+  })
+  .plugins(({ options }) => [
+    yCursorPlugin((() => {
+      options.provider.awareness.setLocalStateField('user', {
+        name: options.name,
+        color: options.color,
+      })
+
+      return options.provider.awareness
+    })(),
+    // @ts-ignore
+    {
+      cursorBuilder: options.render,
+    }),
+  ])
+  .create()
diff --git a/packages/extension-collaboration-cursor/package.json b/packages/extension-collaboration-cursor/package.json
new file mode 100644
index 00000000..a4410c04
--- /dev/null
+++ b/packages/extension-collaboration-cursor/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "@tiptap/extension-collaboration-cursor",
+  "version": "1.0.0",
+  "source": "index.ts",
+  "main": "dist/tiptap-extension-collaboration-cursor.js",
+  "umd:main": "dist/tiptap-extension-collaboration-cursor.umd.js",
+  "module": "dist/tiptap-extension-collaboration-cursor.mjs",
+  "unpkg": "dist/tiptap-extension-collaboration-cursor.js",
+  "jsdelivr": "dist/tiptap-extension-collaboration-cursor.js",
+  "files": [
+    "src",
+    "dist"
+  ],
+  "peerDependencies": {
+    "@tiptap/core": "2.x"
+  },
+  "dependencies": {
+    "y-prosemirror": "^0.3.7"
+  }
+}
diff --git a/packages/extension-collaboration/index.ts b/packages/extension-collaboration/index.ts
new file mode 100644
index 00000000..e734b370
--- /dev/null
+++ b/packages/extension-collaboration/index.ts
@@ -0,0 +1,28 @@
+import { Extension } from '@tiptap/core'
+import {
+  redo, undo, ySyncPlugin, yUndoPlugin,
+} from 'y-prosemirror'
+
+export interface CollaborationOptions {
+  provider: any,
+  type: any,
+}
+
+export default new Extension<CollaborationOptions>()
+  .name('collaboration')
+  .defaults({
+    provider: null,
+    type: null,
+  })
+  .plugins(({ options }) => [
+    ySyncPlugin(options.type),
+    yUndoPlugin(),
+  ])
+  .keys(() => {
+    return {
+      'Mod-z': undo,
+      'Mod-y': redo,
+      'Mod-Shift-z': redo,
+    }
+  })
+  .create()
diff --git a/packages/extension-collaboration/package.json b/packages/extension-collaboration/package.json
new file mode 100644
index 00000000..ebb475d0
--- /dev/null
+++ b/packages/extension-collaboration/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "@tiptap/extension-collaboration",
+  "version": "1.0.0",
+  "source": "index.ts",
+  "main": "dist/tiptap-extension-collaboration.js",
+  "umd:main": "dist/tiptap-extension-collaboration.umd.js",
+  "module": "dist/tiptap-extension-collaboration.mjs",
+  "unpkg": "dist/tiptap-extension-collaboration.js",
+  "jsdelivr": "dist/tiptap-extension-collaboration.js",
+  "files": [
+    "src",
+    "dist"
+  ],
+  "peerDependencies": {
+    "@tiptap/core": "2.x"
+  },
+  "dependencies": {
+    "y-prosemirror": "^0.3.7"
+  }
+}
diff --git a/yarn.lock b/yarn.lock
index 869185df..9faa4a86 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2114,6 +2114,19 @@
     magic-string "^0.25.2"
     resolve "^1.11.0"
 
+"@rollup/plugin-commonjs@^15.0.0":
+  version "15.1.0"
+  resolved "https://registry.yarnpkg.com/@rollup/plugin-commonjs/-/plugin-commonjs-15.1.0.tgz#1e7d076c4f1b2abf7e65248570e555defc37c238"
+  integrity sha512-xCQqz4z/o0h2syQ7d9LskIMvBSH4PX5PjYdpSSvgS+pQik3WahkQVNWg3D8XJeYjZoVWnIUQYDghuEMRGrmQYQ==
+  dependencies:
+    "@rollup/pluginutils" "^3.1.0"
+    commondir "^1.0.1"
+    estree-walker "^2.0.1"
+    glob "^7.1.6"
+    is-reference "^1.2.1"
+    magic-string "^0.25.7"
+    resolve "^1.17.0"
+
 "@rollup/plugin-json@^4.1.0":
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-json/-/plugin-json-4.1.0.tgz#54e09867ae6963c593844d8bd7a9c718294496f3"
@@ -2132,6 +2145,18 @@
     is-module "^1.0.0"
     resolve "^1.11.1"
 
+"@rollup/plugin-node-resolve@^9.0.0":
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/@rollup/plugin-node-resolve/-/plugin-node-resolve-9.0.0.tgz#39bd0034ce9126b39c1699695f440b4b7d2b62e6"
+  integrity sha512-gPz+utFHLRrd41WMP13Jq5mqqzHL3OXrfj3/MkSyB6UBIcuNt9j60GCbarzMzdf1VHFpOxfQh/ez7wyadLMqkg==
+  dependencies:
+    "@rollup/pluginutils" "^3.1.0"
+    "@types/resolve" "1.17.1"
+    builtin-modules "^3.1.0"
+    deepmerge "^4.2.2"
+    is-module "^1.0.0"
+    resolve "^1.17.0"
+
 "@rollup/pluginutils@^3.0.0", "@rollup/pluginutils@^3.0.8", "@rollup/pluginutils@^3.1.0":
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/@rollup/pluginutils/-/pluginutils-3.1.0.tgz#706b4524ee6dc8b103b3c995533e5ad680c02b9b"
@@ -2370,6 +2395,13 @@
   dependencies:
     "@types/node" "*"
 
+"@types/resolve@1.17.1":
+  version "1.17.1"
+  resolved "https://registry.yarnpkg.com/@types/resolve/-/resolve-1.17.1.tgz#3afd6ad8967c77e4376c598a82ddd58f46ec45d6"
+  integrity sha512-yy7HuzQhj0dhGpD8RLXSZWEkLsV9ibvxvi6EiJ3bkqLAO1RGo0WbkWQiwpRlSFymTJRz0d3k5LM3kkx8ArDbLw==
+  dependencies:
+    "@types/node" "*"
+
 "@types/sinonjs__fake-timers@^6.0.1":
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/@types/sinonjs__fake-timers/-/sinonjs__fake-timers-6.0.1.tgz#681df970358c82836b42f989188d133e218c458e"
@@ -5830,6 +5862,11 @@ estree-walker@^1.0.1:
   resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-1.0.1.tgz#31bc5d612c96b704106b477e6dd5d8aa138cb700"
   integrity sha512-1fMXF3YP4pZZVozF8j/ZLfvnR8NSIljt56UhbZ5PeeDmmGHpgpdwQt7ITlGvYaQukCvuBRMLEiKiYC+oeIg4cg==
 
+estree-walker@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-2.0.1.tgz#f8e030fb21cefa183b44b7ad516b747434e7a3e0"
+  integrity sha512-tF0hv+Yi2Ot1cwj9eYHtxC0jB9bmjacjQs6ZBTj82H8JwUywFuc+7E83NWfNMwHXZc11mjfFcVXPe9gEP4B8dg==
+
 esutils@^2.0.2:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
@@ -6550,6 +6587,11 @@ gensync@^1.0.0-beta.1:
   resolved "https://registry.yarnpkg.com/gensync/-/gensync-1.0.0-beta.1.tgz#58f4361ff987e5ff6e1e7a210827aa371eaac269"
   integrity sha512-r8EC6NO1sngH/zdD9fiRDLdcgnbayXah+mLgManTaIZJqEC1MZstmnox8KpnI2/fxQwrp5OpCOYWLp4rBl4Jcg==
 
+get-browser-rtc@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/get-browser-rtc/-/get-browser-rtc-1.0.2.tgz#bbcd40c8451a7ed4ef5c373b8169a409dd1d11d9"
+  integrity sha1-u81AyEUaftTvXDc7gWmkCd0dEdk=
+
 get-caller-file@^2.0.1:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
@@ -8108,7 +8150,7 @@ is-promise@^2.1.0:
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.2.2.tgz#39ab959ccbf9a774cf079f7b40c7a26f763135f1"
   integrity sha512-+lP4/6lKUBfQjZ2pdxThZvLUAafmZb8OAxFb8XXtiQmS35INgr85hdOGoEs124ez1FCnZJt6jau/T+alh58QFQ==
 
-is-reference@^1.1.2:
+is-reference@^1.1.2, is-reference@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/is-reference/-/is-reference-1.2.1.tgz#8b2dac0b371f4bc994fdeaba9eb542d03002d0b7"
   integrity sha512-U82MsXXiFIrjCK4otLT+o2NA2Cd2g5MLoOVXUZjIOhLurrRxpEXzI8O0KZHr3IjLvlAH1kTPYSuqer5T9ZVBKQ==
@@ -8251,6 +8293,11 @@ isobject@^3.0.0, isobject@^3.0.1:
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
   integrity sha1-TkMekrEalzFjaqH5yNHMvP2reN8=
 
+isomorphic.js@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/isomorphic.js/-/isomorphic.js-0.1.4.tgz#6cc878773b0d895261a1b022e6863d564fcccd28"
+  integrity sha512-t9zbgkjE7f9f2M6OSW49YEq0lUrSdAllBbWFUZoeck/rnnFae6UlhmDtXWs48VJY3ZpryCoZsRiAiKD44hPIGQ==
+
 isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
@@ -8570,6 +8617,13 @@ levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lib0@^0.2.28, lib0@^0.2.32, lib0@^0.2.33:
+  version "0.2.33"
+  resolved "https://registry.yarnpkg.com/lib0/-/lib0-0.2.33.tgz#dd759c489d416344efe065c534bccf3ce4925d3e"
+  integrity sha512-Pnm8FzjUr+aTYkEu2A20c1EfVHla8GbVX+GXn6poxx0gcmEuCs+XszjLmtEbI9xYOoI/83xVi7VOIoyHgOO87w==
+  dependencies:
+    isomorphic.js "^0.1.3"
+
 lines-and-columns@^1.1.6:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/lines-and-columns/-/lines-and-columns-1.1.6.tgz#1c00c743b433cd0a4e80758f7b64a57440d9ff00"
@@ -8927,7 +8981,7 @@ magic-string@^0.22.4:
   dependencies:
     vlq "^0.2.2"
 
-magic-string@^0.25.2:
+magic-string@^0.25.2, magic-string@^0.25.7:
   version "0.25.7"
   resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.25.7.tgz#3f497d6fd34c669c6798dcb821f2ef31f5445051"
   integrity sha512-4CrMT5DOHTDk4HYDlzmwu4FVCcIYI8gauveasrdCu2IKIFOJ3f0v/8MDGJCDL9oD2ppz/Av1b0Nj345H9M+XIA==
@@ -11434,6 +11488,11 @@ querystringify@^2.1.1:
   resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.2.0.tgz#3345941b4153cb9d082d8eee4cda2016a9aef7f6"
   integrity sha512-FIqgj2EUvTa7R50u0rGsyTftzjYmv/a3hO345bZNrqabNqjtgiDMgmo4mkUjd+nzU5oF3dClKqFIPUKybUyqoQ==
 
+queue-microtask@^1.1.0:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/queue-microtask/-/queue-microtask-1.1.4.tgz#40841ace4356b48b35b5ea61a2e1fe0a23c59ce1"
+  integrity sha512-eY/4Obve9cE5FK8YvC1cJsm5cr7XvAurul8UtBDJ2PR1p5NmAwHtvAt5ftcLtwYRCUKNhxCneZZlxmUDFoSeKA==
+
 quick-lru@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
@@ -11449,7 +11508,7 @@ ramda@~0.26.1:
   resolved "https://registry.yarnpkg.com/ramda/-/ramda-0.26.1.tgz#8d41351eb8111c55353617fc3bbffad8e4d35d06"
   integrity sha512-hLWjpy7EnsDBb0p+Z3B7rPi3GDeRG5ZtiI33kJhTt+ORCd38AbAIjB/9zRIUoeTbE/AVX5ZkU7m6bznsvrf8eQ==
 
-randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5, randombytes@^2.1.0:
+randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.3, randombytes@^2.0.5, randombytes@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.1.0.tgz#df6f84372f0270dc65cdf6291349ab7a473d4f2a"
   integrity sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==
@@ -12175,6 +12234,13 @@ rollup@^1.32.1:
     "@types/node" "*"
     acorn "^7.1.0"
 
+rollup@^2.26.11:
+  version "2.28.2"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.28.2.tgz#599ec4978144a82d8a8ec3d37670a8440cb04e4b"
+  integrity sha512-8txbsFBFLmm9Xdt4ByTOGa9Muonmc8MfNjnGAR8U8scJlF1ZW7AgNZa7aqBXaKtlvnYP/ab++fQIq9dB9NWUbg==
+  optionalDependencies:
+    fsevents "~2.1.2"
+
 rope-sequence@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/rope-sequence/-/rope-sequence-1.3.2.tgz#a19e02d72991ca71feb6b5f8a91154e48e3c098b"
@@ -12550,6 +12616,17 @@ simple-get@^4.0.0:
     once "^1.3.1"
     simple-concat "^1.0.0"
 
+simple-peer@^9.7.2:
+  version "9.7.2"
+  resolved "https://registry.yarnpkg.com/simple-peer/-/simple-peer-9.7.2.tgz#8cd9cb156bf456ad9c3d379119f0c39dfb3b20f7"
+  integrity sha512-xeMyxa9B4V0eA6mf17fVr8nm2QhAYFu+ZZv8zkSFFTjJETGF227CshwobrIYZuspJglMD63egcevQXGOrTIsuA==
+  dependencies:
+    debug "^4.0.1"
+    get-browser-rtc "^1.0.0"
+    queue-microtask "^1.1.0"
+    randombytes "^2.0.3"
+    readable-stream "^3.4.0"
+
 simple-swizzle@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/simple-swizzle/-/simple-swizzle-0.2.2.tgz#a4da6b635ffcccca33f70d17cb92592de95e557a"
@@ -14656,7 +14733,7 @@ write@1.0.3:
   dependencies:
     mkdirp "^0.5.1"
 
-ws@^7.2.3:
+ws@^7.2.0, ws@^7.2.3:
   version "7.3.1"
   resolved "https://registry.yarnpkg.com/ws/-/ws-7.3.1.tgz#d0547bf67f7ce4f12a72dfe31262c68d7dc551c8"
   integrity sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA==
@@ -14694,6 +14771,34 @@ xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
+y-prosemirror@^0.3.7:
+  version "0.3.7"
+  resolved "https://registry.yarnpkg.com/y-prosemirror/-/y-prosemirror-0.3.7.tgz#df929ceacb3e35c568db9f1a5a36b0515b3732fc"
+  integrity sha512-9jj+BU5T608AjER3uwXkbYKhms6hLNivJDU6/CUAafaM4A1qrDE6blAPe4WOL8f1/oMQ7ZdcXMZpIsoemFHXzg==
+  dependencies:
+    "@rollup/plugin-commonjs" "^15.0.0"
+    "@rollup/plugin-node-resolve" "^9.0.0"
+    lib0 "^0.2.33"
+    rollup "^2.26.11"
+
+y-protocols@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/y-protocols/-/y-protocols-1.0.1.tgz#7855c900039a02b369590b8ae78bc6e1cbc13c9f"
+  integrity sha512-QP3fCM7c2gGfUi2nqf8gspyO4VW23zv3kNqPNdD3wNxMbuNQenMyoDVZYEo12jzR4RQ3aaDfPK62Sf31SVOmfg==
+  dependencies:
+    lib0 "^0.2.28"
+
+y-webrtc@^10.1.6:
+  version "10.1.6"
+  resolved "https://registry.yarnpkg.com/y-webrtc/-/y-webrtc-10.1.6.tgz#1bc33f044c7e4ad1ad8a8311550f05b5aa95a43b"
+  integrity sha512-b3pTIv9LcPuMb4nbDT3/kkgmcuQoTrBmaPbBqPH1LJMzI8HwYnMK8p5r0fBQJBI0YRor+i8BT15Evv1nQBP0zg==
+  dependencies:
+    lib0 "^0.2.32"
+    simple-peer "^9.7.2"
+    y-protocols "^1.0.0"
+  optionalDependencies:
+    ws "^7.2.0"
+
 y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
@@ -14790,3 +14895,10 @@ yauzl@^2.10.0, yauzl@^2.4.2:
   dependencies:
     buffer-crc32 "~0.2.3"
     fd-slicer "~1.1.0"
+
+yjs@^13.3.2:
+  version "13.3.2"
+  resolved "https://registry.yarnpkg.com/yjs/-/yjs-13.3.2.tgz#80377d7a1e3af8d9611e95b7bf1a96d3203cda6c"
+  integrity sha512-f4R9wK4Pn0FDrNR++mjaW4mbC/qsFHzZaDicva1yN3IMrlUuwQ6qt3HEUc4DMiAkjETGB07LyhxbQ9YgNenk8Q==
+  dependencies:
+    lib0 "^0.2.32"