I used Claude to write the application code while I handled infrastructure (Docker, nginx, CI/CD, monitoring). The biggest lesson wasn't about AI generating code, it was about context management. A steering doc and a living todo.md turned the AI from a forgetful assistant into a consistent collaborator.
Total cost including Apple Developer fee, hosting, and a test Android phone: ~£410. Blog post covers the full breakdown, what it would cost without AI, and the "black box fear" of running code you didn't write.