Ruby gem created at Amplifr to integrate Logux with Rails. Easy to configure (set the Logux proxy back URL and mount the route). Provides abstractions that wrap the underlying Logux protocol: Action (Logux message with a type and params, similar to Rails action params), Meta (technical metadata — time, identification, destination scope). Supports authentication via credentials that round-trip back to the backend for validation, convention-over-configuration mapping of event types to action classes, Logux channels for per-client subscriptions with an `initial_data` method, sending events back to clients via `Logux.add`, a JSON field-based last-write-wins helper for models, and sending `undo` events on server-side validation failure. At the time of the talk it was still under active development inside Amplifr and not yet published.