Saw a video this week where a guy replaced Chess.com Premium ($14/mo) AND a $500/hr chess coach by building his own AI coach with Claude Code in about 2 hours. It reviews his games like a grandmaster, learned his weaknesses on its own, and now drills him on them daily.
The part that got me is the same architecture works for basically any subscription you pay for: language learning, fitness programming, trading journals, study tools. Describe what you want, let the AI build it, own it forever for free.
He also runs a free community called KVK Automates AI where he shares the full template for this build.