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Show HN: Chime – Full-screen meeting alerts for time blindess (macOS)
I struggle with time blindness and kept missing client Zoom calls.
MacOS notification banners appear for 5 seconds and vanish...my brain can't hold onto them. I spent 2 months building a solution.
What it is:
Chime shows full-screen alerts that physically interrupt whatever you're doing. It's impossible to miss.
Technical details:
- Built entirely in Swift/SwiftUI using Cursor.
- Uses EventKit for Calendar + Reminders integration
- Todoist REST API v2 for task sync
- All data stays local—no cloud sync
How it works:
- Syncs from Calendar, Apple Reminders, and Todoist every 1-30 min (This is customisable)
- Extracts meeting links from meetings (30+ platforms: Zoom, Teams, Meet, Webex, etc.)
- Schedules Timer-based full screen alerts with customizable timing
- Sound rotation system to prevent habituation
The insight:
Most accessibility focuses on making things "clearer" or "simpler." Neurodivergent brains need "impossible to ignore." Subtle equals invisible. I've been using it for a few weeks and went from missing chunk of meetings to zero.
Try it:
14-day free trial on Mac App Store. No signup required, just download and grant Calendar permissions. https://apps.apple.com/us/app/chime-remember-everything/id6753882399 https://apps.apple.com/us/app/chime-remember-everything/id67...
Happy to discuss:
- Building macOS apps with AI assistance
- EventKit's quirks (hourly recurrence workaround, full screen alert implementation, etc)
- Designing for neurodivergent users