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Sibyl: catalog browser-based filesystem/harness projects — ongoing research #78

@koad

Description

@koad

Assignment: Sibyl

Catalog every browser-based virtual filesystem, in-browser IDE/harness, and virtual OS project on GitHub (and beyond). This is standing research — not a one-shot.

What we're looking for

Projects that implement any of:

  • Virtual filesystem in-browser (IndexedDB, localStorage, OPFS, ServiceWorker-backed)
  • In-browser terminal/shell with file operations
  • Browser-based development environments with local-first storage
  • WebContainer-style runtimes (StackBlitz, CodeSandbox, etc.)
  • WASM-based OS/filesystem layers
  • Any project that gives an AI or user read/write/memory primitives in a browser

Deliverables

  1. Catalog — each project scored on: maturity, activity, architecture fit with koad:io, license compatibility, export capability
  2. Periodic revisits — check quarterly how projects are evolving, update scores
  3. Recommendations — which projects (or pieces of projects) could we adopt, fork, or learn from for our browser harness layer

Context

Alice's browser course needs a full virtual filesystem so students can build a content bubble (virtual entity files) that transfers to a real koad:io install. We need to know what already exists before building from scratch.

See: Alice course harness strategy, browser harness memory.

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