It is for output / screen. But I like your enthusiasm about using open source for salt water aquarium 😉

Awoo is not a crime!

Loop Habit Tracker - simply tracking habits.

Red Moon. Blue light filter for screen. Makes it less hurting for eyes to use phone at night, or generally in dark.

This aged really well 😎

Cool! Not libre, but it enables new category of people to comfortably transition to Linux. I can imagine the anger at Adobe 🤣