I built an AI Coach https://world.hey.com/thaianhduc/the-new-way-of-building-apps-9b4c36d4 as an experiment to explore Claude Code. Today, I chatted with it

how is my training looking so far?

Pretty cool. The cool thing is that I can build it with my personal philosophies, custom training. For example, I can add some context in my question, more like a conversation with a Coach.