librio-wasm

librio without its pty feature, compiled to wasm32-unknown-unknown and exposed through wasm-bindgen. This is the JS ABI behind the rioterm npm package, the same way librio's C ABI backs the Swift/C embedders.

There is no PTY in a browser, so the host owns the transport: child output goes in through feed, and bytes the terminal wants delivered to the child (key encodings, mouse reports, DA responses) come back out through the output callback. Wire those two to a WebSocket for a real shell, or to an in-page interpreter for a demo.

Build:

cargo build -p librio-wasm --release --target wasm32-unknown-unknown
wasm-bindgen --target web --out-dir pkg \
  target/wasm32-unknown-unknown/release/librio_wasm.wasm

The rioterm web repository pins a rio revision and runs this build in CI; it is not published to crates.io.