Self-host letterboxd-list-radarr

letterboxd-list-radarr acts as a bridge between Letterboxd and Radarr, exposing Letterboxd lists as custom list endpoints that Radarr can consume. It supports watchlists, regular lists, watched films, reviews, filmographies (actor, director, writer), collections, popular movies, and studio pages. The service is written in Node.js and uses Redis for caching movie and list data. Users can self-host via Docker (with a pre-built multi-arch image), deploy to Render or Heroku with one-click buttons, or run locally with npm. Configuration is done through environment variables (REDIS_URL, PORT, LOG_LEVEL, USER_AGENT) and query parameters (limit, errorOnEmpty). The hosted instance on Render has been suspended by the owner, making self-hosting the primary option. No authentication is built into the service itself; it is meant to be used within a trusted network or behind a reverse proxy.