Most of the actual functional "backend" parts come from computer science and various research used in safety critical industries (Like Crew Resource Management), but the general aesthetic is heavily tabletop influenced.

I haven't done much with most of the explicit "gamification" elements like habit trackers use, because those usually don't actually feel like games, they're mostly just performance metrics without any story or gameplay mechanics.

I think it would be cool in theory to have some sort of XP system, but mostly everything I've seen seems too much like bookkeeping overhead.

In real TTRPGs, the points actually represent something, but with habit trackers, they're representing results that already exist automatically in the real world as a consequence of the habit.