Improve Binder and launch jupyverse directly

README.md

@@ -1,6 +1,6 @@
 [![Build Status](https://github.com/jupyter-server/jupyverse/workflows/CI/badge.svg)](https://github.com/jupyter-server/jupyverse/actions)
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
-[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupyter-server/jupyverse/HEAD?filepath=examples%2Fjupyverse.ipynb)
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupyter-server/jupyverse/HEAD
 
 # jupyverse
 

binder/environment.yml

@@ -3,7 +3,5 @@ channels:
   - conda-forge
 dependencies:
   - python =3.9
-  - jupyterlab =3
-  - ipyurl
-  - jupyter-server-proxy >=1.5
+  - jupyter-server-proxy
   - pip

binder/jupyter_notebook_config.py

@@ -0,0 +1,25 @@
+jupyverse_command = ' '.join([
+    'jupyverse',
+    '--no-open-browser',
+    '--authenticator.mode=noauth',
+    '--JupyterLab.collaborative',
+    '--RetroLab.enabled=false',
+    '--JupyterLab.base_url={base_url}jupyverse',
+    '--port={port}',
+])
+
+
+c.ServerProxy.servers = {
+    'jupyverse': {
+        'command': [
+            '/bin/bash', '-c', jupyverse_command
+        ],
+        'timeout': 60,
+        'absolute_url': True
+    },
+}
+
+c.NotebookApp.default_url = '/jupyverse'
+
+import logging
+c.NotebookApp.log_level = logging.DEBUG

binder/postBuild

@@ -11,5 +11,3 @@ python -m pip install plugins/terminals
 python -m pip install plugins/nbconvert
 python -m pip install plugins/yjs
 python -m pip install plugins/auth
-
-jupyter serverextension enable --sys-prefix jupyter_server_proxy

binder/start

@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+import sys
+import shutil
+import os
+
+argv = sys.argv[1:] + ['--config', 'binder/jupyter_notebook_config.py']
+print(argv)
+
+with open('startup_args.txt', 'w') as fid:
+    fid.write(str(argv))
+
+os.execv(shutil.which(argv[0]), argv)