LibreLingo’s mission is to create a modern language-learning platform that is owned by the community of its users. All software is licensed under AGPLv3, which guarantees the freedom to run, study, share, and modify the software. Course authors are encouraged to release their courses with free licenses.
Course templates are fairly easy to make it seems. There are a handful more not listed in the linked URL (though I think you need to install a local copy for them to work; links here are hosted by an old version of LibreLingo).
Edit: I have twice now changed the link, as I keep linking either the old or broken web interface. apologies, that’s on me.
awesome, i’ve been waiting years for this!
people kept saying duolingo was fine since their goal was to make learning accessible, but i knew duolingo was always going down the road every for-profit corporation goes. here we are today: they are an AI-driven company that seeks to maximize profits through government contracts