A small coding agent with a virtual filesystem: it proposes patches, applies them, and runs the resulting Python inside a Pyodide (WebAssembly) sandbox. Entirely in this tab — no server, nothing leaves your machine.
A local model via WebGPU (bring-your-own-key optional), diff rendering, and the same patch-application logic I wrote for a production coding assistant, rebuilt clean.
Meanwhile, vram-planner is live.