diff --git a/.gitignore b/.gitignore
index e6d937b..9e477ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,5 +8,5 @@ _testoutput/
 anaconda-project.yml
 envs/
 node_modules/
-src/*/lib
+src/**/lib
 Untitled*
diff --git a/environment.yml b/environment.yml
index 312c6d5..8adf050 100644
--- a/environment.yml
+++ b/environment.yml
@@ -9,3 +9,4 @@ dependencies:
   - jupyterlab >=1.0.2,<1.1.0a0
   - nodejs >=11,<12
   - python >=3.7,<3.8.0a0
+  - python-socketio >=4,<4.1
diff --git a/jupyter_notebook_config.json b/jupyter_notebook_config.json
new file mode 100644
index 0000000..de1ff06
--- /dev/null
+++ b/jupyter_notebook_config.json
@@ -0,0 +1,7 @@
+{
+  "NotebookApp": {
+    "nbserver_extensions": {
+      "jupyter_y_websockets": true
+    }
+  }
+}
diff --git a/labex.txt b/labex.txt
index f487172..4bae956 100644
--- a/labex.txt
+++ b/labex.txt
@@ -1,4 +1,5 @@
 @jupyterlab/toc@1.0.1
-./src/_core
-./src/blockly
-./src/prosemirror
+./src/ts/_core
+./src/ts/blockly
+./src/ts/prosemirror
+./src/ts/y
diff --git a/package.json b/package.json
index 593b64d..f4279ff 100644
--- a/package.json
+++ b/package.json
@@ -16,16 +16,16 @@
   "private": true,
   "scripts": {
     "bootstrap": "jlpm && jlpm build",
-    "build": "cd src && cd _meta && jlpm build",
+    "build": "cd src && cd ts && cd _meta && jlpm build",
     "clean": "lerna exec --parallel --stream -- rimraf lib",
     "lint": "jlpm lint:root && jlpm lint:prettier && jlpm lint:ts",
     "lint:prettier": "lerna exec -- prettier --write --config=../../.prettierrc ./src/**/*.ts ./src/**/*.tsx ./style/**/*.css ./*.json ./*.md",
     "lint:root": "prettier --write *.json *.md *.yml",
     "lint:ts": "lerna exec -- tslint -c ../../tslint.json --fix ./src/**/*.ts",
-    "watch": "cd src && cd _meta && jlpm watch"
+    "watch": "cd src && cd ts && cd _meta && jlpm watch"
   },
   "version": "1.0.0",
   "workspaces": [
-    "src/*"
+    "src/ts/*"
   ]
 }
diff --git a/postBuild b/postBuild
index 85a422c..cb9bd7f 100755
--- a/postBuild
+++ b/postBuild
@@ -14,7 +14,11 @@ else
   fi
 fi
 
-set -ex
+set -eux
+pushd src/py/jupyter_y_websockets
+python -m pip install -e . --ignore-installed --no-deps
+popd
+
 jlpm --ignore-optional || jlpm || echo "well, let's try anyway"
 jlpm bootstrap
 jupyter labextension install $(cat labex.txt)
diff --git a/src/py/jupyter_y_websockets/LICENSE b/src/py/jupyter_y_websockets/LICENSE
new file mode 100644
index 0000000..177e140
--- /dev/null
+++ b/src/py/jupyter_y_websockets/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2018, Dead Pixels Collective
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of [project] nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/src/py/jupyter_y_websockets/README.md b/src/py/jupyter_y_websockets/README.md
new file mode 100644
index 0000000..2e57814
--- /dev/null
+++ b/src/py/jupyter_y_websockets/README.md
@@ -0,0 +1,3 @@
+# jupyter_y_websockets
+
+> Inspired by https://github.com/y-js/y-websockets-server
diff --git a/src/py/jupyter_y_websockets/setup.cfg b/src/py/jupyter_y_websockets/setup.cfg
new file mode 100644
index 0000000..00e70e7
--- /dev/null
+++ b/src/py/jupyter_y_websockets/setup.cfg
@@ -0,0 +1,42 @@
+[metadata]
+name = jupyter_y_websockets
+version = 0.1.0
+description = a yjs-websockets backend for jupyter
+long_description = file: README.md
+long_description_content_type = text/markdown
+url = https://github.com/deathbeds/jupyterlab-outsource
+author = dead pixels collective
+author_email = ripxl@googlegroups.com
+license = BSD-3-Clause
+keywords =
+    Interactive
+license_file = LICENSE
+classifiers =
+    Framework :: Jupyter
+    Intended Audience :: Developers
+    Intended Audience :: Information Technology
+    License :: OSI Approved :: BSD License
+    Programming Language :: Python
+
+[options]
+install_requires =
+    notebook
+    python-socketio
+package_dir =
+    = src
+packages =
+  jupyter_y_websockets
+include_package_data = True
+zip_safe = False
+
+[options.extras_require]
+tests =
+    pytest
+
+[options.packages.find]
+where =
+    src
+
+[flake8]
+exclude = .git,__pycache__,envs
+max-line-length = 88
diff --git a/src/py/jupyter_y_websockets/setup.py b/src/py/jupyter_y_websockets/setup.py
new file mode 100644
index 0000000..aefdf20
--- /dev/null
+++ b/src/py/jupyter_y_websockets/setup.py
@@ -0,0 +1 @@
+__import__("setuptools").setup()
diff --git a/src/py/jupyter_y_websockets/src/jupyter_y_websockets/__init__.py b/src/py/jupyter_y_websockets/src/jupyter_y_websockets/__init__.py
new file mode 100644
index 0000000..bb54ac8
--- /dev/null
+++ b/src/py/jupyter_y_websockets/src/jupyter_y_websockets/__init__.py
@@ -0,0 +1,19 @@
+from notebook.utils import url_path_join as ujoin
+
+from ._version import __version__
+from .manager import YWebSocketsManager
+
+
+def _jupyter_server_extension_paths():
+    raise Exception("POOP")
+    return [{"module": "jupyter_y_websockets"}]
+
+
+def load_jupyter_server_extension(nbapp):
+    mgr = YWebSocketsManager(parent=nbapp)
+
+    app = nbapp.web_app
+    url = ujoin(app.settings["base_url"], "/y/ws/")
+    handler = mgr.get_handler()
+    app.add_handlers(".*$", [(url, handler)])
+    nbapp.log.debug(f"y is listening on {url}")
diff --git a/src/py/jupyter_y_websockets/src/jupyter_y_websockets/_version.py b/src/py/jupyter_y_websockets/src/jupyter_y_websockets/_version.py
new file mode 100644
index 0000000..3dc1f76
--- /dev/null
+++ b/src/py/jupyter_y_websockets/src/jupyter_y_websockets/_version.py
@@ -0,0 +1 @@
+__version__ = "0.1.0"
diff --git a/src/py/jupyter_y_websockets/src/jupyter_y_websockets/manager.py b/src/py/jupyter_y_websockets/src/jupyter_y_websockets/manager.py
new file mode 100644
index 0000000..1eb8760
--- /dev/null
+++ b/src/py/jupyter_y_websockets/src/jupyter_y_websockets/manager.py
@@ -0,0 +1,63 @@
+import traitlets as T
+from traitlets.config import LoggingConfigurable
+
+import socketio as S
+
+
+class YWebSocketsManager(LoggingConfigurable):
+    sio = T.Instance(S.AsyncServer)
+
+    def get_handler(self):
+
+        _Handler = S.get_tornado_handler(self.sio)
+
+        mgr = self
+
+        class SocketHandler(_Handler):
+            def check_xsrf_cookie(self):
+                pass
+
+            async def on_message(self, message):
+                mgr.log.error(f"MSG {msg}")
+                await super().on_message(message)
+
+        return SocketHandler
+
+    @T.default("sio")
+    def _default_sio(self):
+        s = S.AsyncServer(async_mode="tornado")
+
+        @s.on("connect")
+        async def connect(sid, environ): return await self._on_connect(sid, environ)
+
+        @s.on("disconnect")
+        async def disconnect(sid): return await self._on_disconnect(sid)
+
+        @s.on("joinRoom")
+        async def join(sid, data): return await self._on_join(sid, data)
+
+        @s.on("yjsEvent")
+        async def y_event(sid, data): return await self._on_receive(sid, data)
+
+        @s.on("leaveRoom")
+        async def leave(sid, data): return await self._on_leave(sid, data)
+
+        return s
+
+    @property
+    def web_app(self):
+        return self.parent.web_app
+
+    async def _on_connect(self, sid, enviorn):
+        self.parent.log.error(f"Connected {sid}")
+
+    async def _on_disconnect(self, sid):
+        self.parent.log.error(f"disconnect {sid}")
+
+    async def _on_join(self, sid, data):
+        self.parent.log.error(f"{sid} joins {data}")
+        return await self.sio.enter_root(sid, data["room"])
+
+    async def _on_receieve(self, sid, data):
+        self.parent.log.error(f"{sid} SAYS {data}")
+        return await self.sio.emit("yjsEvent", data,  skip_sid=sid)
diff --git a/src/_core/package.json b/src/ts/_core/package.json
similarity index 100%
rename from src/_core/package.json
rename to src/ts/_core/package.json
diff --git a/src/_core/src/button.ts b/src/ts/_core/src/button.ts
similarity index 100%
rename from src/_core/src/button.ts
rename to src/ts/_core/src/button.ts
diff --git a/src/_core/src/extension.ts b/src/ts/_core/src/extension.ts
similarity index 100%
rename from src/_core/src/extension.ts
rename to src/ts/_core/src/extension.ts
diff --git a/src/_core/src/index.ts b/src/ts/_core/src/index.ts
similarity index 100%
rename from src/_core/src/index.ts
rename to src/ts/_core/src/index.ts
diff --git a/src/_core/src/picker.tsx b/src/ts/_core/src/picker.tsx
similarity index 100%
rename from src/_core/src/picker.tsx
rename to src/ts/_core/src/picker.tsx
diff --git a/src/_core/src/sourcerer.ts b/src/ts/_core/src/sourcerer.ts
similarity index 100%
rename from src/_core/src/sourcerer.ts
rename to src/ts/_core/src/sourcerer.ts
diff --git a/src/_core/style/img/outsource.svg b/src/ts/_core/style/img/outsource.svg
similarity index 100%
rename from src/_core/style/img/outsource.svg
rename to src/ts/_core/style/img/outsource.svg
diff --git a/src/_core/style/index.css b/src/ts/_core/style/index.css
similarity index 100%
rename from src/_core/style/index.css
rename to src/ts/_core/style/index.css
diff --git a/src/_core/tsconfig.json b/src/ts/_core/tsconfig.json
similarity index 77%
rename from src/_core/tsconfig.json
rename to src/ts/_core/tsconfig.json
index 69599d6..140c9e1 100644
--- a/src/_core/tsconfig.json
+++ b/src/ts/_core/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "../../tsconfigbase",
+  "extends": "../../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
     "rootDir": "src"
diff --git a/src/_meta/package.json b/src/ts/_meta/package.json
similarity index 88%
rename from src/_meta/package.json
rename to src/ts/_meta/package.json
index b58ab94..e67e57a 100644
--- a/src/_meta/package.json
+++ b/src/ts/_meta/package.json
@@ -6,7 +6,8 @@
   "dependencies": {
     "@deathbeds/jupyterlab-outsource": "^1.0.0",
     "@deathbeds/jupyterlab-outsource-blockly": "^1.0.0",
-    "@deathbeds/jupyterlab-outsource-prosemirror": "^1.0.0"
+    "@deathbeds/jupyterlab-outsource-prosemirror": "^1.0.0",
+    "@deathbeds/jupyterlab-outsource-y": "^1.0.0"
   },
   "description": "Alternate editors for JupyterLab Source",
   "files": [
diff --git a/src/_meta/src/index.ts b/src/ts/_meta/src/index.ts
similarity index 76%
rename from src/_meta/src/index.ts
rename to src/ts/_meta/src/index.ts
index b653ad6..9faf84a 100644
--- a/src/_meta/src/index.ts
+++ b/src/ts/_meta/src/index.ts
@@ -1,3 +1,4 @@
 import '@deathbeds/jupyterlab-outsource';
 import '@deathbeds/jupyterlab-outsource-blockly';
 import '@deathbeds/jupyterlab-outsource-prosemirror';
+import '@deathbeds/jupyterlab-outsource-y';
diff --git a/src/_meta/tsconfig.json b/src/ts/_meta/tsconfig.json
similarity index 77%
rename from src/_meta/tsconfig.json
rename to src/ts/_meta/tsconfig.json
index e95ee38..e51fd39 100644
--- a/src/_meta/tsconfig.json
+++ b/src/ts/_meta/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "../../tsconfigbase",
+  "extends": "../../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
     "rootDir": "src"
@@ -16,6 +16,9 @@
     },
     {
       "path": "../prosemirror"
+    },
+    {
+      "path": "../y"
     }
   ]
 }
diff --git a/src/blockly/package.json b/src/ts/blockly/package.json
similarity index 100%
rename from src/blockly/package.json
rename to src/ts/blockly/package.json
diff --git a/src/blockly/src/extension.ts b/src/ts/blockly/src/extension.ts
similarity index 100%
rename from src/blockly/src/extension.ts
rename to src/ts/blockly/src/extension.ts
diff --git a/src/blockly/src/factory.ts b/src/ts/blockly/src/factory.ts
similarity index 100%
rename from src/blockly/src/factory.ts
rename to src/ts/blockly/src/factory.ts
diff --git a/src/blockly/src/index.ts b/src/ts/blockly/src/index.ts
similarity index 100%
rename from src/blockly/src/index.ts
rename to src/ts/blockly/src/index.ts
diff --git a/src/blockly/src/raw-loader.d.ts b/src/ts/blockly/src/raw-loader.d.ts
similarity index 100%
rename from src/blockly/src/raw-loader.d.ts
rename to src/ts/blockly/src/raw-loader.d.ts
diff --git a/src/blockly/src/typings.d.ts b/src/ts/blockly/src/typings.d.ts
similarity index 100%
rename from src/blockly/src/typings.d.ts
rename to src/ts/blockly/src/typings.d.ts
diff --git a/src/blockly/src/widget.ts b/src/ts/blockly/src/widget.ts
similarity index 100%
rename from src/blockly/src/widget.ts
rename to src/ts/blockly/src/widget.ts
diff --git a/src/blockly/style/img/blockly.svg b/src/ts/blockly/style/img/blockly.svg
similarity index 100%
rename from src/blockly/style/img/blockly.svg
rename to src/ts/blockly/style/img/blockly.svg
diff --git a/src/blockly/style/index.css b/src/ts/blockly/style/index.css
similarity index 100%
rename from src/blockly/style/index.css
rename to src/ts/blockly/style/index.css
diff --git a/src/blockly/tsconfig.json b/src/ts/blockly/tsconfig.json
similarity index 83%
rename from src/blockly/tsconfig.json
rename to src/ts/blockly/tsconfig.json
index 6cce9e3..f12e55d 100644
--- a/src/blockly/tsconfig.json
+++ b/src/ts/blockly/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "../../tsconfigbase",
+  "extends": "../../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
     "rootDir": "src"
diff --git a/src/blockly/xml/toolbox.xml b/src/ts/blockly/xml/toolbox.xml
similarity index 100%
rename from src/blockly/xml/toolbox.xml
rename to src/ts/blockly/xml/toolbox.xml
diff --git a/src/prosemirror/package.json b/src/ts/prosemirror/package.json
similarity index 100%
rename from src/prosemirror/package.json
rename to src/ts/prosemirror/package.json
diff --git a/src/prosemirror/src/extension.ts b/src/ts/prosemirror/src/extension.ts
similarity index 100%
rename from src/prosemirror/src/extension.ts
rename to src/ts/prosemirror/src/extension.ts
diff --git a/src/prosemirror/src/factory.ts b/src/ts/prosemirror/src/factory.ts
similarity index 100%
rename from src/prosemirror/src/factory.ts
rename to src/ts/prosemirror/src/factory.ts
diff --git a/src/prosemirror/src/index.ts b/src/ts/prosemirror/src/index.ts
similarity index 100%
rename from src/prosemirror/src/index.ts
rename to src/ts/prosemirror/src/index.ts
diff --git a/src/prosemirror/src/typings.d.ts b/src/ts/prosemirror/src/typings.d.ts
similarity index 100%
rename from src/prosemirror/src/typings.d.ts
rename to src/ts/prosemirror/src/typings.d.ts
diff --git a/src/prosemirror/src/widget.ts b/src/ts/prosemirror/src/widget.ts
similarity index 100%
rename from src/prosemirror/src/widget.ts
rename to src/ts/prosemirror/src/widget.ts
diff --git a/src/prosemirror/style/img/prosemirror.svg b/src/ts/prosemirror/style/img/prosemirror.svg
similarity index 100%
rename from src/prosemirror/style/img/prosemirror.svg
rename to src/ts/prosemirror/style/img/prosemirror.svg
diff --git a/src/prosemirror/style/index.css b/src/ts/prosemirror/style/index.css
similarity index 100%
rename from src/prosemirror/style/index.css
rename to src/ts/prosemirror/style/index.css
diff --git a/src/prosemirror/tsconfig.json b/src/ts/prosemirror/tsconfig.json
similarity index 83%
rename from src/prosemirror/tsconfig.json
rename to src/ts/prosemirror/tsconfig.json
index 6cce9e3..f12e55d 100644
--- a/src/prosemirror/tsconfig.json
+++ b/src/ts/prosemirror/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "../../tsconfigbase",
+  "extends": "../../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
     "rootDir": "src"
diff --git a/src/ts/y/package.json b/src/ts/y/package.json
new file mode 100644
index 0000000..d7d5805
--- /dev/null
+++ b/src/ts/y/package.json
@@ -0,0 +1,51 @@
+{
+  "author": "Dead Pixels Collective",
+  "bugs": {
+    "url": "https://github.com/deathbeds/jupyterlab-outsource/issues"
+  },
+  "peerDependencies": {
+    "@deathbeds/jupyterlab-outsource": "^1.0.0",
+    "@jupyterlab/application": "^1.0.0",
+    "@jupyterlab/launcher": "^1.0.0"
+  },
+  "dependencies": {
+    "y-websockets-client": "^8.0.0-0",
+    "yjs": "^12.0.0-0",
+    "y-text": "*",
+    "y-array": "*",
+    "y-memory": "*",
+    "y-map": "*"
+  },
+  "devDependencies": {
+    "@deathbeds/jupyterlab-outsource": "^1.0.0",
+    "@jupyterlab/application": "^1.0.0",
+    "@jupyterlab/launcher": "^1.0.0"
+  },
+  "description": "YJS for outsource",
+  "files": [
+    "{lib,style}/**/*.{css,d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}"
+  ],
+  "homepage": "https://github.com/deathbeds/jupyterlab-outsource",
+  "jupyterlab": {
+    "extension": "lib/extension.js"
+  },
+  "keywords": [
+    "jupyter",
+    "jupyterlab",
+    "jupyterlab-extension",
+    "yjs"
+  ],
+  "license": "BSD-3-Clause",
+  "main": "lib/index.js",
+  "name": "@deathbeds/jupyterlab-outsource-y",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/deathbeds/jupyterlab-outsource.git"
+  },
+  "scripts": {
+    "build": "tsc -b",
+    "watch": "tsc -b --watch"
+  },
+  "types": "lib/index.d.ts",
+  "version": "1.0.0"
+}
diff --git a/src/ts/y/src/extension.ts b/src/ts/y/src/extension.ts
new file mode 100644
index 0000000..8f9c14c
--- /dev/null
+++ b/src/ts/y/src/extension.ts
@@ -0,0 +1,37 @@
+import {JupyterFrontEnd, JupyterFrontEndPlugin} from '@jupyterlab/application';
+import { ILauncher } from '@jupyterlab/launcher';
+
+import {IOutsourceY, PLUGIN_ID} from '.';
+
+
+import '../style/index.css';
+
+const CMD = 'outsource-y:scratch-path';
+
+const extension: JupyterFrontEndPlugin<IOutsourceY> = {
+  id: PLUGIN_ID,
+  autoStart: true,
+  provides: IOutsourceY,
+  requires: [ILauncher],
+  activate: (_app: JupyterFrontEnd, launcher: ILauncher): IOutsourceY => {
+    _app.commands.addCommand(CMD, {
+      label: 'Y',
+      execute: async (_args: any) => {
+        (window as any).ws = WebSocket;
+        const {makeWidget} = await import(/* webpackChunkName: "yjs" */ './widget');
+        const widget = await makeWidget();
+        _app.shell.add(widget, 'main');
+        console.log('added widget');
+      }
+    });
+
+    launcher.add({
+      command: CMD,
+      category: 'Other'
+    });
+
+    return {};
+  },
+};
+
+export default extension;
diff --git a/src/ts/y/src/index.ts b/src/ts/y/src/index.ts
new file mode 100644
index 0000000..6863e6f
--- /dev/null
+++ b/src/ts/y/src/index.ts
@@ -0,0 +1,13 @@
+import {Token} from '@phosphor/coreutils';
+
+export const PLUGIN_ID = '@deathbeds/jupyterlab-outsource:y';
+
+/* tslint:disable */
+export const IOutsourceY = new Token<IOutsourceY>(PLUGIN_ID);
+/* tslint:enable */
+
+export interface IOutsourceY {}
+
+export const CSS = {};
+
+export const API = '/y/ws/';
diff --git a/src/ts/y/src/typings.d.ts b/src/ts/y/src/typings.d.ts
new file mode 100644
index 0000000..2148df7
--- /dev/null
+++ b/src/ts/y/src/typings.d.ts
@@ -0,0 +1,8 @@
+declare module 'socket.io-client' {}
+declare module 'ws' {}
+declare module 'y-array/src/Array' {}
+declare module 'y-map/src/Map' {}
+declare module 'y-memory/src/Memory' {}
+declare module 'y-text/src/Text' {}
+declare module 'y-websockets-client/src/Websockets-client' {}
+declare module 'yjs/src/y' {}
diff --git a/src/ts/y/src/widget.ts b/src/ts/y/src/widget.ts
new file mode 100644
index 0000000..e3a508c
--- /dev/null
+++ b/src/ts/y/src/widget.ts
@@ -0,0 +1,101 @@
+import {Widget} from '@phosphor/widgets';
+import {MainAreaWidget} from '@jupyterlab/apputils';
+import { ServerConnection } from '@jupyterlab/services';
+import {URLExt} from '@jupyterlab/coreutils';
+
+import io from 'socket.io-client';
+
+import Y from 'yjs/src/y';
+import YWebSocket from 'y-websockets-client/src/Websockets-client';
+import YArray from 'y-array/src/Array';
+import YMap from 'y-map/src/Map';
+import YText from 'y-text/src/Text';
+import YMemory from 'y-memory/src/Memory';
+
+import {API} from '.';
+
+let id = 0;
+
+[YWebSocket, YMemory, YArray, YMap, YText].map((fn: any) => fn(Y));
+
+function xsrf() {
+  return document.cookie.match('\\b_xsrf=([^;]*)\\b');
+}
+
+export class YTextArea extends Widget {
+  private settings: ServerConnection.ISettings;
+  private _y: any;
+
+  constructor(options?: Widget.IOptions, settings?: ServerConnection.ISettings) {
+    options = options || {};
+    options.node = document.createElement('textarea');
+    super(options);
+    this.settings = settings || ServerConnection.makeSettings();
+  }
+
+  protected makeSocket(url: string) {
+    const socket = (io as any)(url, {
+      path: url.split(window.location.origin)[1],
+      transportOptions: {
+        polling: {
+          extraHeaders: {
+            'X-CSRFToken': xsrf()
+          }
+        }
+      }
+    });
+    console.log('socket', socket);
+    return socket;
+  }
+
+  protected async makeY(socket: any, url: string) {
+    const y = await (Y as any)({
+      db: {name: 'memory'},
+      connector: {
+        name: 'websockets-client',
+        room: 'hello-jupyter',
+        socket,
+        url,
+      },
+      share: {textarea: 'Text'}
+    });
+    console.log('y', y);
+    return y;
+  }
+
+  protected onY(y: any) {
+    // bind the textarea to a shared text element
+    y.share.textarea.bindTextarea(this.node);
+    console.log('bound');
+  }
+
+  async onAfterShow() {
+    if (this._y) {
+      console.log('already shown');
+      return;
+    }
+
+    const url = URLExt.join(this.settings.baseUrl, API);
+    const socket = this.makeSocket(url);
+
+    try {
+      this._y = await this.makeY(socket, url);
+      this.onY(this._y);
+      console.log(this._y);
+    } catch (err) {
+      console.error(err);
+    }
+  }
+}
+
+export async function makeWidget() {
+  const content = new YTextArea();
+  const _id = id++;
+
+  content.title.label = `Y ${_id}`;
+
+  const w = new MainAreaWidget({content});
+  w.id = `id-y-${_id}`;
+
+  return w;
+}
diff --git a/src/ts/y/style/index.css b/src/ts/y/style/index.css
new file mode 100644
index 0000000..e69de29
diff --git a/src/ts/y/tsconfig.json b/src/ts/y/tsconfig.json
new file mode 100644
index 0000000..f12e55d
--- /dev/null
+++ b/src/ts/y/tsconfig.json
@@ -0,0 +1,16 @@
+{
+  "extends": "../../../tsconfigbase",
+  "compilerOptions": {
+    "outDir": "lib",
+    "rootDir": "src"
+  },
+  "include": [
+    "src/**/*",
+    "src/@types/**/*"
+  ],
+  "references": [
+    {
+      "path": "../_core"
+    }
+  ]
+}
diff --git a/yarn.lock b/yarn.lock
index 8143959..d3d26e4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -279,6 +279,20 @@
     "@phosphor/signaling" "^1.2.3"
     "@phosphor/widgets" "^1.8.0"
 
+"@jupyterlab/launcher@^1.0.0":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/@jupyterlab/launcher/-/launcher-1.0.1.tgz#d75e6457e1abd329d111437bde1cec56fcc9338f"
+  integrity sha512-GarY6YGFYY0oyeaJZv8KYM7SYrrd2BcqRmgm36+q3uXqu8qbGegSp4N/sNanWVjaCSnXUG3ab0Kb1gcDi5AAZQ==
+  dependencies:
+    "@jupyterlab/apputils" "^1.0.1"
+    "@phosphor/algorithm" "^1.1.3"
+    "@phosphor/commands" "^1.6.3"
+    "@phosphor/coreutils" "^1.3.1"
+    "@phosphor/disposable" "^1.2.0"
+    "@phosphor/properties" "^1.1.3"
+    "@phosphor/widgets" "^1.8.0"
+    react "~16.8.4"
+
 "@jupyterlab/notebook@^1.0.0":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@jupyterlab/notebook/-/notebook-1.0.1.tgz#0b7d9b2c728bcc12897c30c4259d19121b84fa4b"
@@ -1406,6 +1420,11 @@ acorn@^6.0.1, acorn@^6.0.7, acorn@^6.1.1:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.2.0.tgz#67f0da2fc339d6cfb5d6fb244fd449f33cd8bbe3"
   integrity sha512-8oe72N3WPMjA+2zVG71Ia0nXZ8DpQH+QyyHO+p06jT8eg8FGG3FbcUIi8KziHlAfheJQZeoqbvq1mQSQHXKYLw==
 
+after@0.8.1:
+  version "0.8.1"
+  resolved "https://registry.yarnpkg.com/after/-/after-0.8.1.tgz#ab5d4fb883f596816d3515f8f791c0af486dd627"
+  integrity sha1-q11PuIP1loFtNRX495HAr0ht1ic=
+
 agent-base@4, agent-base@^4.3.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
@@ -1541,6 +1560,11 @@ array-unique@^0.3.2:
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
   integrity sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=
 
+arraybuffer.slice@0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.6.tgz#f33b2159f0532a3f3107a272c0ccfbd1ad2979ca"
+  integrity sha1-8zshWfBTKj8xB6JywMz70a0peco=
+
 arrify@^1.0.0, arrify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
@@ -1603,11 +1627,21 @@ aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
+backo2@1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
+  integrity sha1-MasayLEpNjRj41s+u2n038+6eUc=
+
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
+base64-arraybuffer@0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/base64-arraybuffer/-/base64-arraybuffer-0.1.2.tgz#474df4a9f2da24e05df3158c3b1db3c3cd46a154"
+  integrity sha1-R030qfLaJOBd8xWMOx2zw81GoVQ=
+
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
@@ -1633,11 +1667,33 @@ before-after-hook@^2.0.0:
   resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-2.0.1.tgz#a21dc15582fee3f035c39dcbb77f6892a99ada36"
   integrity sha512-dpgMHA51KZyCu7uuxF6FCkN+scfGd/6aLxEr/14vKUo/1nPxcd2fhFv4BgYCbWxKt7JfgpbjJq9nc30Ip/p2uw==
 
+benchmark@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/benchmark/-/benchmark-1.0.0.tgz#2f1e2fa4c359f11122aa183082218e957e390c73"
+  integrity sha1-Lx4vpMNZ8REiqhgwgiGOlX45DHM=
+
+better-assert@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/better-assert/-/better-assert-1.0.2.tgz#40866b9e1b9e0b55b481894311e68faffaebc522"
+  integrity sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=
+  dependencies:
+    callsite "1.0.0"
+
+bindings@1.2.x, bindings@~1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.2.1.tgz#14ad6113812d2d37d72e67b4cacb4bb726505f11"
+  integrity sha1-FK1hE4EtLTfXLme0ystLtyZQXxE=
+
 bindings@~1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.3.1.tgz#21fc7c6d67c18516ec5aaa2815b145ff77b26ea5"
   integrity sha512-i47mqjF9UbjxJhxGf+pZ6kSxrnI3wBLlnGI2ArWJ4r0VrvDS7ZYXkprq/pLaBWYq4GM0r4zdHY+NNRqEMU7uew==
 
+blob@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
+  integrity sha1-vPEwUspURj8w+fx+lbmkdjCpSSE=
+
 bluebird@^3.5.1, bluebird@^3.5.3, bluebird@^3.5.5:
   version "3.5.5"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.5.tgz#a8d0afd73251effbbd5fe384a77d73003c17a71f"
@@ -1682,6 +1738,14 @@ buffer-from@^1.0.0:
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
   integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
 
+bufferutil@1.2.x:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/bufferutil/-/bufferutil-1.2.1.tgz#37be5d36e1e06492221e68d474b1ac58e510cbd7"
+  integrity sha1-N75dNuHgZJIiHmjUdLGsWOUQy9c=
+  dependencies:
+    bindings "1.2.x"
+    nan "^2.0.5"
+
 builtin-modules@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
@@ -1756,6 +1820,11 @@ caller-path@^2.0.0:
   dependencies:
     caller-callsite "^2.0.0"
 
+callsite@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
+  integrity sha1-KAOY5dZkvXQDi28JBRU+borxvCA=
+
 callsites@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
@@ -1934,11 +2003,26 @@ compare-func@^1.3.1:
     array-ify "^1.0.0"
     dot-prop "^3.0.0"
 
+component-bind@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
+  integrity sha1-AMYIq33Nk4l8AAllGx06jh5zu9E=
+
+component-emitter@1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.1.2.tgz#296594f2753daa63996d2af08d15a95116c9aec3"
+  integrity sha1-KWWU8nU9qmOZbSrwjRWpURbJrsM=
+
 component-emitter@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.3.0.tgz#16e4070fba8ae29b679f2215853ee181ab2eabc0"
   integrity sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg==
 
+component-inherit@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
+  integrity sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM=
+
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -2185,6 +2269,18 @@ dateformat@^3.0.0:
   resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-3.0.3.tgz#a6e37499a4d9a9cf85ef5872044d62901c9889ae"
   integrity sha512-jyCETtSl3VMZMWeRo7iY1FL19ges1t55hMo5yaam4Jrsm5EPL89UQkoQRyiI+Yf4k8r2ZpdngkV8hr1lIdjb3Q==
 
+debug@0.7.4:
+  version "0.7.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-0.7.4.tgz#06e1ea8082c2cb14e39806e22e2f6f757f92af39"
+  integrity sha1-BuHqgILCyxTjmAbiLi9vdX+Srzk=
+
+debug@1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-1.0.4.tgz#5b9c256bd54b6ec02283176fa8a0ede6d154cbf8"
+  integrity sha1-W5wla9VLbsAigxdvqKDt5tFUy/g=
+  dependencies:
+    ms "0.6.2"
+
 debug@3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
@@ -2192,7 +2288,7 @@ debug@3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@^2.2.0, debug@^2.3.3:
+debug@^2.2.0, debug@^2.3.3, debug@^2.6.3:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
@@ -2438,6 +2534,35 @@ end-of-stream@^1.0.0, end-of-stream@^1.1.0:
   dependencies:
     once "^1.4.0"
 
+engine.io-client@1.5.4:
+  version "1.5.4"
+  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-1.5.4.tgz#c6ad65a65752a29cb930c6911e579d2b28d1106c"
+  integrity sha1-xq1lpldSopy5MMaRHledKyjREGw=
+  dependencies:
+    component-emitter "1.1.2"
+    component-inherit "0.0.3"
+    debug "1.0.4"
+    engine.io-parser "1.2.2"
+    has-cors "1.0.3"
+    indexof "0.0.1"
+    parsejson "0.0.1"
+    parseqs "0.0.2"
+    parseuri "0.0.4"
+    ws "0.8.0"
+    xmlhttprequest "https://github.com/rase-/node-XMLHttpRequest/archive/a6b6f2.tar.gz"
+
+engine.io-parser@1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-1.2.2.tgz#cd081041feea39c64323ff79b82a90a72afcccdd"
+  integrity sha1-zQgQQf7qOcZDI/95uCqQpyr8zN0=
+  dependencies:
+    after "0.8.1"
+    arraybuffer.slice "0.0.6"
+    base64-arraybuffer "0.1.2"
+    blob "0.0.4"
+    has-binary "0.1.6"
+    utf8 "2.1.0"
+
 entities@^1.1.1, entities@~1.1.1:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.2.tgz#bdfa735299664dfafd34529ed4f8522a275fea56"
@@ -3060,6 +3185,10 @@ glob@^7.0.3, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+"global@https://github.com/component/global/archive/v2.0.1.tar.gz":
+  version "2.0.1"
+  resolved "https://github.com/component/global/archive/v2.0.1.tar.gz#3fb25343fb66d79991b0f4a429ce3b54480eec3c"
+
 globals@^11.7.0:
   version "11.12.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
@@ -3112,6 +3241,20 @@ har-validator@~5.1.0:
     ajv "^6.5.5"
     har-schema "^2.0.0"
 
+has-binary@0.1.6:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/has-binary/-/has-binary-0.1.6.tgz#25326f39cfa4f616ad8787894e3af2cfbc7b6e10"
+  integrity sha1-JTJvOc+k9hath4eJTjryz7x7bhA=
+  dependencies:
+    isarray "0.0.1"
+
+has-cors@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.0.3.tgz#502acb9b3104dac33dd2630eaf2f888b0baf4cb3"
+  integrity sha1-UCrLmzEE2sM90mMOry+IiwuvTLM=
+  dependencies:
+    global "https://github.com/component/global/archive/v2.0.1.tar.gz"
+
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -3296,6 +3439,11 @@ indent-string@^3.0.0:
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-3.2.0.tgz#4a5fd6d27cc332f37e5419a504dbb837105c9289"
   integrity sha1-Sl/W0nzDMvN+VBmlBNu4NxBckok=
 
+indexof@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
+  integrity sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=
+
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
@@ -3574,6 +3722,11 @@ is-windows@^1.0.2:
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
   integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
 
+isarray@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
+  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
+
 isarray@1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
@@ -3717,6 +3870,11 @@ json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
   integrity sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus=
 
+json3@3.2.6:
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/json3/-/json3-3.2.6.tgz#f6efc93c06a04de9aec53053df2559bb19e2038b"
+  integrity sha1-9u/JPAagTemuxTBT3yVZuxniA4s=
+
 json5@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/json5/-/json5-2.1.0.tgz#e7a0c62c48285c628d20a10b85c89bb807c32850"
@@ -4237,6 +4395,11 @@ move-concurrently@^1.0.1:
     rimraf "^2.5.4"
     run-queue "^1.0.3"
 
+ms@0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-0.6.2.tgz#d89c2124c6fdc1353d65a8b77bf1aac4b193708c"
+  integrity sha1-2JwhJMb9wTU9Zai3e/GqxLGTcIw=
+
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
@@ -4267,11 +4430,21 @@ mute-stream@~0.0.4:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.8.tgz#1630c42b2251ff81e2a283de96a5497ea92e5e0d"
   integrity sha512-nnbWWOkoWyUsTjKrhgD0dcz22mdkSnpYqbEjIm2nhwhuxlSkpywJmBo8h0ZqJdkp73mb90SssHkN4rsRaBAfAA==
 
+nan@^2.0.5:
+  version "2.14.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
+  integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
+
 nan@~2.10.0:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
   integrity sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA==
 
+nan@~2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.4.0.tgz#fb3c59d45fe4effe215f0b890f8adf6eb32d2232"
+  integrity sha1-+zxZ1F/k7/4hXwuJD4rfbrMtIjI=
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -4466,6 +4639,11 @@ object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
   integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
 
+object-component@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
+  integrity sha1-8MaapQ78lbhmwYb0AKM3acsvEpE=
+
 object-copy@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
@@ -4541,6 +4719,11 @@ optionator@^0.8.1, optionator@^0.8.2:
     type-check "~0.3.2"
     wordwrap "~1.0.0"
 
+options@>=0.0.5:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/options/-/options-0.0.6.tgz#ec22d312806bb53e731773e7cdaefcf1c643128f"
+  integrity sha1-7CLTEoBrtT5zF3Pnza788cZDEo8=
+
 orderedmap@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/orderedmap/-/orderedmap-1.0.0.tgz#d90fc2ba1ed085190907d601dec6e6a53f8d41ba"
@@ -4734,6 +4917,34 @@ parse5@^1.5.1:
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-1.5.1.tgz#9b7f3b0de32be78dc2401b17573ccaf0f6f59d94"
   integrity sha1-m387DeMr543CQBsXVzzK8Pb1nZQ=
 
+parsejson@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/parsejson/-/parsejson-0.0.1.tgz#9b10c6c0d825ab589e685153826de0a3ba278bcc"
+  integrity sha1-mxDGwNglq1ieaFFTgm3go7oni8w=
+  dependencies:
+    better-assert "~1.0.0"
+
+parseqs@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.2.tgz#9dfe70b2cddac388bde4f35b1f240fa58adbe6c7"
+  integrity sha1-nf5wss3aw4i95PNbHyQPpYrb5sc=
+  dependencies:
+    better-assert "~1.0.0"
+
+parseuri@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.2.tgz#db41878f2d6964718be870b3140973d8093be156"
+  integrity sha1-20GHjy1pZHGL6HCzFAlz2Ak74VY=
+  dependencies:
+    better-assert "~1.0.0"
+
+parseuri@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.4.tgz#806582a39887e1ea18dd5e2fe0e01902268e9350"
+  integrity sha1-gGWCo5iH4eoY3V4v4OAZAiaOk1A=
+  dependencies:
+    better-assert "~1.0.0"
+
 pascalcase@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
@@ -5642,6 +5853,34 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
+socket.io-client@1.3.7:
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-1.3.7.tgz#7ab7c069b8d50425eb265f031f84a97e6ebe719c"
+  integrity sha1-erfAabjVBCXrJl8DH4Spfm6+cZw=
+  dependencies:
+    backo2 "1.0.2"
+    component-bind "1.0.0"
+    component-emitter "1.1.2"
+    debug "0.7.4"
+    engine.io-client "1.5.4"
+    has-binary "0.1.6"
+    indexof "0.0.1"
+    object-component "0.0.3"
+    parseuri "0.0.2"
+    socket.io-parser "2.2.4"
+    to-array "0.1.3"
+
+socket.io-parser@2.2.4:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-2.2.4.tgz#f9ce19bf1909608ceb15d97721e23bfdd1e7cf65"
+  integrity sha1-+c4ZvxkJYIzrFdl3IeI7/dHnz2U=
+  dependencies:
+    benchmark "1.0.0"
+    component-emitter "1.1.2"
+    debug "0.7.4"
+    isarray "0.0.1"
+    json3 "3.2.6"
+
 socks-proxy-agent@^4.0.0:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/socks-proxy-agent/-/socks-proxy-agent-4.0.2.tgz#3c8991f3145b2799e70e11bd5fbc8b1963116386"
@@ -5999,6 +6238,11 @@ tmp@^0.0.33:
   dependencies:
     os-tmpdir "~1.0.2"
 
+to-array@0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.3.tgz#d45dadc6363417f60f28474fea50ecddbb4f4991"
+  integrity sha1-1F2txjY0F/YPKEdP6lDs3btPSZE=
+
 to-object-path@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
@@ -6186,6 +6430,11 @@ uid-number@0.0.6:
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
   integrity sha1-DqEOgDXo61uOREnwbaHHMGY7qoE=
 
+ultron@1.0.x:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.0.2.tgz#ace116ab557cd197386a4e88f4685378c8b2e4fa"
+  integrity sha1-rOEWq1V80Zc4ak6I9GhTeMiy5Po=
+
 umask@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/umask/-/umask-1.1.0.tgz#f29cebf01df517912bb58ff9c4e50fde8e33320d"
@@ -6265,6 +6514,19 @@ use@^3.1.0:
   resolved "https://registry.yarnpkg.com/use/-/use-3.1.1.tgz#d50c8cac79a19fbc20f2911f56eb973f4e10070f"
   integrity sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==
 
+utf-8-validate@1.2.x:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/utf-8-validate/-/utf-8-validate-1.2.2.tgz#8bb871a4741e085c70487ca7acdbd7d6d36029eb"
+  integrity sha1-i7hxpHQeCFxwSHynrNvX1tNgKes=
+  dependencies:
+    bindings "~1.2.1"
+    nan "~2.4.0"
+
+utf8@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.0.tgz#0cfec5c8052d44a23e3aaa908104e8075f95dfd5"
+  integrity sha1-DP7FyAUtRKI+OqqQgQToB1+V39U=
+
 util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
@@ -6470,6 +6732,17 @@ write@1.0.3:
   dependencies:
     mkdirp "^0.5.1"
 
+ws@0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-0.8.0.tgz#ac60ebad312121d01e16cc3383d7ec67ad0f0f1f"
+  integrity sha1-rGDrrTEhIdAeFswzg9fsZ60PDx8=
+  dependencies:
+    options ">=0.0.5"
+    ultron "1.0.x"
+  optionalDependencies:
+    bufferutil "1.2.x"
+    utf-8-validate "1.2.x"
+
 ws@^7.0.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/ws/-/ws-7.1.0.tgz#0395646c6fcc3ac56abf61ce1a42039637a6bd98"
@@ -6492,6 +6765,10 @@ xmlchars@^2.1.1:
   resolved "https://registry.yarnpkg.com/xmlchars/-/xmlchars-2.1.1.tgz#ef1a81c05bff629c2280007f12daca21bd6f6c93"
   integrity sha512-7hew1RPJ1iIuje/Y01bGD/mXokXxegAgVS+e+E0wSi2ILHQkYAH1+JXARwTjZSM4Z4Z+c73aKspEcqj+zPPL/w==
 
+"xmlhttprequest@https://github.com/rase-/node-XMLHttpRequest/archive/a6b6f2.tar.gz":
+  version "1.5.0"
+  resolved "https://github.com/rase-/node-XMLHttpRequest/archive/a6b6f2.tar.gz#20cafa5caa55f6db6bfaee849d1eb60ee43a5fca"
+
 xmlshim@^0.2.5:
   version "0.2.5"
   resolved "https://registry.yarnpkg.com/xmlshim/-/xmlshim-0.2.5.tgz#59dd36167ff422b8433ea63d49d2c9c6bcf01133"
@@ -6505,6 +6782,35 @@ 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-array@*:
+  version "10.1.4"
+  resolved "https://registry.yarnpkg.com/y-array/-/y-array-10.1.4.tgz#e131a5b030d6dcbca10268d4293ecf44bdae7b34"
+  integrity sha1-4TGlsDDW3LyhAmjUKT7PRL2uezQ=
+
+y-map@*:
+  version "10.1.3"
+  resolved "https://registry.yarnpkg.com/y-map/-/y-map-10.1.3.tgz#a15802cedbac369e506b96f68def8f0a2e836196"
+  integrity sha1-oVgCztusNp5Qa5b2je+PCi6DYZY=
+
+y-memory@*:
+  version "8.0.9"
+  resolved "https://registry.yarnpkg.com/y-memory/-/y-memory-8.0.9.tgz#551af9ca153bd344647663b91ebde59a6802b23b"
+  integrity sha512-OrcReh6DgZhz5R7JGXqAH53T0Ygw24qcxKj4jN9w2DIi2eIiKFCD5Y6apBTTNxiw2FaVP15F+M8phRRIMXFGBQ==
+
+y-text@*:
+  version "9.5.1"
+  resolved "https://registry.yarnpkg.com/y-text/-/y-text-9.5.1.tgz#8739f42592e73d795c4b56a8de013e46c14170ac"
+  integrity sha512-uwNLY4LeLLR7Cu4xfvh9ZY4gmOYyjii4irDHYRuhPDs1XFcm6krVaALeggA42LevTQ+k5q1eHpdv5jnJha8r6g==
+  dependencies:
+    fast-diff "^1.1.1"
+
+y-websockets-client@^8.0.0-0:
+  version "8.0.16"
+  resolved "https://registry.yarnpkg.com/y-websockets-client/-/y-websockets-client-8.0.16.tgz#a50b0ad7546952542a3d3300bd4d0e85a2fb7443"
+  integrity sha1-pQsK11RpUlQqPTMAvU0OhaL7dEM=
+  dependencies:
+    socket.io-client "1.3.7"
+
 "y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
@@ -6545,3 +6851,10 @@ yargs@^12.0.1:
     which-module "^2.0.0"
     y18n "^3.2.1 || ^4.0.0"
     yargs-parser "^11.1.1"
+
+yjs@^12.0.0-0:
+  version "12.3.3"
+  resolved "https://registry.yarnpkg.com/yjs/-/yjs-12.3.3.tgz#7bec14d59afe166d68cc2b27413193c0e5ba724c"
+  integrity sha1-e+wU1Zr+Fm1ozCsnQTGTwOW6ckw=
+  dependencies:
+    debug "^2.6.3"