capnweb 0.8.0 plus WebSocket-over-RPC support (#1, not yet upstreamed).
Prebuilt tarball for installing without npm: built from 4d384fa with npm ci && npm run build && npm pack (node 24, tsdown). Install via:
"capnweb": "https://github.com/iterate/capnweb/releases/download/v0.8.0-websocket.1/capnweb-0.8.0.tgz"