RechnungsFee

Open-Source Buchhaltungssoftware für Freiberufler, Selbstständige und Vereine. Offline-first, datenschutzfreundlich, GoBD-konform. Made for Germany 🇩🇪. Maintained by nicolettas-muggelbude on GitHub, where it has earned 54 stars from the community.

It's actively developed around accounting, buchhaltung, datev, and is a solid reference for anyone building with these tools.