macOS app that can gradually increase/tweak the Night Shift warmth intensity at set times, so you could make your screen warmer as you go further into the night. Does not run in the background - uses native macOS scheduling!

Mac application for protect your Vision. A good rule here is to follow 20-20-20.

app that reminds you to take a break every 20 minutes, to look at something 20 feet away, for 20 seconds