Unrot.dev - Duolingo for devs

Hey dev, is AI making you dumb? Practice daily SWE core fundamentals with more than 10 tracks. systems design/data engineering/java/JS-TS/SQL.. and much more Xp & rewards system, streaks, day freezes, badges, leagues, leaderboards... Invite your friends, challenge them, and keep up with SWE fundamentals. 100% free - FOREVER, because our early users deserve it.