Taiga - Project management platform for agile developers & designers
Trackma - Trackma aims to be a lightweight and simple but feature-rich program for Unix based systems for...
anitrack - Scrobbles what you're watching with MyAnimeList and Kitsu.
Shoko Server - Automate your anime collection.
MAL-Sync - Integrates MyAnimeList/AniList/Kitsu/Simkl into various sites, with auto episode tracking. - lolamtisch/MALSync
Biyori - Anime Management - Biyori - A management app for your preferred Anime List Host