https://aidinbazarchi.com/notes/Notes on building apps with AI.en https://aidinbazarchi.com/notes/ai-in-three-apps/https://aidinbazarchi.com/notes/ai-in-three-apps/Sun, 25 Oct 2026 12:00:00 GMTWhat I learned shipping GiftPlannerAI, ToastAI and Famtale: a fallback for every model, keys on the server, privacy rules in code and limits that keep AI costs predictable.