What is luna?

Luna is a self-hosted calendar aggregator and frontend that consolidates multiple calendar sources — CalDAV servers, iCal files, and Google Calendar — into one web application. It supports user management with registration and login, customizable themes and fonts with many built-in options, and a dark mode. The project is nearing a 1.0.0 release but is not yet officially released; the developer notes that recurring event support and mobile screen size support are still incomplete. Deployment is via Docker Compose (building images locally with make) or baremetal using bun, Go, and PostgreSQL 16+. No first-party Docker images are published yet, though community images exist. The backend requires PostgreSQL and stores data with encryption. Authentication is built-in username/password with JWT tokens; OAuth 2.0 is supported for connecting to calendar sources, not for user login. The API uses bearer tokens or cookies. There is no LDAP, OIDC, SAML, or 2FA support yet — these are listed as future plans.

Should you self-host luna?

luna scores 43/100 on selfhost.directory (how scoring works) and ranks #25 of 30 in Calendar & Contacts. It has 525 GitHub stars.

There was no stable release in the past 12 months, so check the repository's recent activity before you rely on it.

Setup is advanced: plan for several services and some ongoing maintenance. It is written mostly in Go.

Its closest alternative on selfhost.directory is Radicale (69/100, 5 152 stars). It scores higher overall, so compare the two before you pick. See luna vs Radicale side by side.