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[WIP] WebContainer Shell

Your viewing the v2 branch, a complete rewrite more future-proof

WebContainer-inspired shell, in the browser

This is a proof-of-concept and work in progress - code is messy and serve demonstration purpose only

Checkout the demo at https://bash-js.vercel.app

This projects aims to contribute to the discussion about WebContainer specification.

This is a bash-like shell but that runs in the browser. It comes with a lightweight kernel implementation (supports process and filesystem management):

  • Every process runs in its own dedicated worker
  • Extensible filesystem
  • Performant (heavily rely on postMessage and Transferable objects - reduce minimize the amount of copy)
  • Supports commands pipes (eg. echo Hello world! | tee README)

Interesting files:

TODO

  • Serve filesystem via Service Worker
  • Let the app works offline with a Service Worker
  • Move shell features into a dedicated a process (enable nested shells)
  • Add signals support (for SIGINT and SIGKILL)
  • Add jobs support (enables detached commands)
  • Add network support (TCP, UNIX socket, UDP)
  • Add multi-tabs support (one container per tab)
  • Add a WASI runtime (a wasi [wasm-file] command for instance)
    • Add integration with WAPM
  • Add ps and kill commands
  • Add docs about APIs and kernel design
  • Add a deno command (shim the Rust part with a wrapper around this lib's API)
  • iframe-based process ? (enable electron-like apps)