

If you mean weightlifting, liflog is really the best that there is right now. Beautiful interface, simple, database of exercises to add (though it is isn’t as good as something like Progression, which isn’t open source).
Programs for weightlifting are pretty simple and Jeff Nippard has great program overviews for different goals and availability, and tons of other fitness youtubers also.
If you mean something that is more bodyweight/calisthenics with video/animated explanations then I don’t know of one.
Wait, cage the elephant is considered indie and obscure? They were the intro to borderlands lol, that’s where I heard of them