The 'no-login' flow is a great way to reduce user drop-off. I tested the mobile-first design and it feels very snappy. One small suggestion for the UX: adding a PWA (Progressive Web App) manifest would make it even more convenient to use on mobile, as users could add it to their home screen like a native app. Great work on the interval reminders feature too!
Getting a prototype ready in 2 hours is a great start. My advice for the 'next steps' would be to focus on user validation before worrying too much about scaling. Since you used an AI chatbot for the frontend, try to see if you can wire it up to a simple backend like Supabase or even a serverless setup. It keeps costs low while you're still in the 'regular job' phase you mentioned. Don't worry too much about the IP yet; execution and a solid user base are what YC and investors look for most.
