unsloth/docker/jupyter/overrides.json
Daniel Han c9ff52ba04 docker: Colab-grade JupyterLab and Studio UX for the Blackwell image
Stacks a Colab-like JupyterLab and Studio experience on top of the
existing Blackwell image. Additive only: the training stack, CUDA/torch
pinning, and the Studio/JupyterLab/sshd service trio are unchanged.

JupyterLab labextension (prebuilt in a throwaway builder stage, so the
runtime image stays Node-free):
  - Unsloth Dark (Monokai) theme, adaptive light/dark by system preference
  - Colab-style ArrowDown/Up cell navigation
  - top-bar Unsloth logo (stock Jupyter logo disabled and locked)
  - #@title lines render as collapsible Heading-2 form bars
  - Ctrl+A in a cell output selects only that output, not the whole
    notebook (the old behaviour ran notebook:select-all and was laggy)
  - right activity bar hidden by default
  - overrides.json: per-cell run button without auto-advance, labeled
    Restart and Run All, windowing off so collapsing an output does not
    snap to the cell top, news/update prompts suppressed

Studio and login branding: Unsloth favicon, page logo, and a dark
Unsloth login page that rotates through the curated Studio sloth
stickers (fail-soft to the logo).

Notebook organization and Colab compatibility (base image):
  - categorized folder view built from relative symlinks mirroring the
    README sections, rebuilt each boot; real .ipynb files never moved,
    and the symlink tree is invisible to the sync state machine
  - AMD-* notebooks shown only on an AMD/HIP host (autodetected)
  - Docker-only strip of the Colab "Run all on Colab" intro sentence
    from unedited notebooks (upstream notebooks unchanged)
  - hoist %%capture above a leading #@title form so the cell runs
  - the per-cell transformers-sidecar log is silent unless
    UNSLOTH_ENABLE_LOGGING=1

Dependency pinning and naming: the curated notebook extras are pinned to
their resolved versions for reproducible rebuilds; decord is split into
its own fail-soft install (no aarch64 wheel). The lean base image is
renamed from :base to :core.

Adds tests/validate_studio_features.py, a static self-test for the
labextension plugins, overrides keys, and branding wiring.
2026-06-25 16:22:41 +00:00

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{
"@jupyterlab/apputils-extension:themes": {
"theme": "Unsloth Dark",
"theme-scrollbars": true,
"adaptive-theme": true,
"preferred-light-theme": "JupyterLab Light",
"preferred-dark-theme": "Unsloth Dark"
},
"@jupyterlab/notebook-extension:tracker": {
"windowingMode": "none",
"scrollPastEnd": true,
"codeCellConfig": {
"autoClosingBrackets": true
}
},
"@jupyterlab/cell-toolbar-extension:plugin": {
"toolbar": [
{
"name": "run-cell-no-advance",
"command": "notebook:run-cell",
"icon": "ui-components:run",
"rank": 0
}
]
},
"@jupyterlab/notebook-extension:panel": {
"toolbar": [
{
"name": "restart-and-run",
"command": "notebook:restart-run-all",
"label": "Restart & Run All",
"rank": 33
}
]
},
"@jupyterlab/apputils-extension:notification": {
"fetchNews": "false",
"checkForUpdates": false,
"doNotDisturbMode": true
}
}