capybara-dommy is a Capybara driver backed by Dommy and dommy-rack. It drives Rack/Rails apps through the Capybara DSL without a real browser or JavaScript, keeping the page as a Dommy::Document. RackTest-like, with HTML-level visibility.

dommy-js-quickjs lets JavaScript drive a Dommy DOM by embedding QuickJS (via the quickjs gem) and bridging DOM nodes to JS through an ES Proxy that routes property/method access into Dommy's __js_get__ / __js_set__ / __js_call__ ABI.

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.

dommy-rack lets a Rack application (including Rails) be visited and manipulated as a Dommy::Document without launching a real browser. It provides a small, synchronous, browser-like session API with navigation, cookies, redirects, link clicking, and form submission.

Rails-specific matchers and assertions for Dommy, including form helper understanding, Turbo Stream support, Stimulus attribute checking, and HTML quality linting.