A tiny macOS menu-bar app I built around the 20-20-20 rule — every 20 minutes, look ~20 feet away for 20 seconds. Horizon gently takes over your screen for a 20-second break so your eyes can ease off and refocus, then hands your screen right back. It’s free and open-source.

I built it because I stare at a screen all day and my eyes were paying for it. Give yours a break — download it here, or check out the source on GitHub.