extensions how to

[phanirithvij]

I am a nix beginner and thus am more driven by guides/tutorials.

Readme says

These environments include JupyterLab - configurable with extensions

But I couldn't find any info on how to add an extension via nix in the jupyenv.io site, and if I tried to add it via the web ui it fails to add because of an issue.

I tried to install an extension from the webui named jupyterlab-simpledark

This is the log

Expand

[W 2024-05-21 10:01:52.674 LabApp] Build recommended
[W 2024-05-21 10:01:52.674 LabApp] jupyterlab-simpledark needs to be included in build
[I 2024-05-21 10:01:59.065 LabApp] Building jupyterlab assets (production, minimized)
[W 2024-05-21 10:02:06.392 LabApp] Build failed, running a clean and rebuild
[I 2024-05-21 10:02:06.400 LabApp] Cleaning /home/rithvij/Projects/notebooks/twaegjupyterenv/.jupyter/lab/share/jupyter/lab...
[W 2024-05-21 10:02:06.401 ServerApp] 500 POST /lab/api/build?1716265918810 (127.0.0.1): 'AppOptions' object has no attribute 'extensions'
[W 2024-05-21 10:02:06.401 LabApp] wrote error: "'AppOptions' object has no attribute 'extensions'"
    Traceback (most recent call last):
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/handlers/build_handler.py", line 114, in _run_build
        return build(app_options=app_options)
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/commands.py", line 506, in build
        return handler.build(
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/commands.py", line 722, in build
        raise RuntimeError(msg)
    RuntimeError: JupyterLab failed to build

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/handlers/build_handler.py", line 149, in post
        yield self.builder.build()
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/tornado/gen.py", line 769, in run
        value = future.result()
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/tornado/gen.py", line 776, in run
        yielded = self.gen.throw(*exc_info)  # type: ignore
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/handlers/build_handler.py", line 82, in build
        raise e
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/handlers/build_handler.py", line 80, in build
        yield self._future
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/tornado/gen.py", line 769, in run
        value = future.result()
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/handlers/build_handler.py", line 68, in build
        yield self._run_build(
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/tornado/gen.py", line 769, in run
        value = future.result()
      File "/nix/store/abax98471z8fshv4b9p46bkh3lxmpy0z-python3-3.10.9/lib/python3.10/concurrent/futures/thread.py", line 58, in run
        result = self.fn(*self.args, **self.kwargs)
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/handlers/build_handler.py", line 119, in _run_build
        clean(app_options=app_options)
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/commands.py", line 477, in clean
        targets = [t for t in possibleTargets if getattr(app_options, t)]
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/commands.py", line 477, in <listcomp>
        targets = [t for t in possibleTargets if getattr(app_options, t)]
    AttributeError: 'AppOptions' object has no attribute 'extensions'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/tornado/web.py", line 1713, in _execute
        result = await result
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/tornado/gen.py", line 776, in run
        yielded = self.gen.throw(*exc_info)  # type: ignore
      File "/nix/store/i2ihlpzkbcysdyq8srhh3xlpmv6cskgy-python3-3.10.9-env/lib/python3.10/site-packages/jupyterlab/handlers/build_handler.py", line 151, in post
        raise web.HTTPError(500, str(e))
    tornado.web.HTTPError: HTTP 500: Internal Server Error ('AppOptions' object has no attribute 'extensions')
[E 2024-05-21 10:02:06.403 LabApp] {
      "Host": "localhost:8888",
      "Accept": "*/*",
      "Referer": "http://localhost:8888/lab/tree/notebooks/py.ipynb",
      "User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0"
    }
[E 2024-05-21 10:02:06.403 LabApp] 500 POST /lab/api/build?1716265918810 (43643a47a0ca463fa2eaa4669d4e8fd8@127.0.0.1) 7589.01ms referer=http://localhost:8888/lab/tree/notebooks/py.ipynb

Also I think these qna type issues can be discussions instead, can github discussions be opened for this repo?