I built Chime - a macOS app that shows full-screen meeting alerts for people who lose track of time while in deep work mode (like me).

The problem: Calendar notifications are too subtle when you're in deep focus. I kept missing meetings/reminders and felt terrible about it.

The solution: Full-screen alerts 5 minutes before meetings that you literally can't ignore (time is customisable). Plus auto-detection of Zoom/Teams/Meet/etc links for one-click joining.

Tech stack: Native Swift/SwiftUI, EventKit for calendar integration, local-first (your data stays on your Mac).

Landing page: https://usechime.app

I'm looking for ~50 beta testers to try it via TestFlight before the official launch. Especially interested in: - Techies who have this same problem - Feedback on the alert timing and design - Edge cases with different calendar setups - Privacy-conscious users (happy to discuss implementation)

If you're interested, there's a waitlist link on the site. I'll send TestFlight invites to the first respondents.

Would also love general feedback on the concept!