I've been working on Asakiri Studio. A desktop app for making duolingo like language courses.

Everything lives in a folder on your machine. No account, no cloud, no sync. Courses can then be hosted as a git repo, collaborated on and get version control.

It's in alpha and very early, but it's usable. Some people are interested in making courses for Italian, Portuguese, Okinawan and Finnish.

[flagged]