https://selfhostindex.com/category/groupware/ New and updated self-hosted groupware apps. en https://selfhostindex.com/app/groupware-radicale/ https://selfhostindex.com/app/groupware-radicale/#milestone-2026-09-15 Tue, 15 Sep 2026 06:00:00 +0000 Radicale passed 5,000 GitHub stars. Simple, lightweight CalDAV and CardDAV server Groupware