A wasmtime-rb host for mruby-wasm-js builds (the Lilac component runtime is the primary example). It reimplements the mruby-wasm-js `js.*` handle-table ABI and the WASI preview1 surface in pure Ruby, routing JS interop into Dommy's `__js_get__/__js_set__/__js_call__/__js_new__` bridge protocol. The wasmtime sibling of dommy-js-quickjs — but instead of running JavaScript it drives Dommy from mruby running inside wasm.