Remove unnecessary copy to ~/.config/manicode/. The patched ELF
binary and tree-sitter.wasm stay in the nix store alongside a minimal
JS launcher that spawns the engine with terminal cleanup handling.
- Download and extract the engine binary from codebuff.com releases
- Use patchelf to set correct glibc interpreter path
- Create wrapper launcher that copies patched binary to user config
- Pre-fetch all npm dependencies (no network needed in sandbox)
- Set dontStrip/dontPatchelf to prevent fixupPhase corruption
Add freebuff v0.0.85 from npm registry — a pure JS CLI tool for
AI-assisted coding. Pre-fetches all transitive npm dependencies to
work within the Nix sandbox (no network access during build).
