A very specific problem

I love FOSS apps that are made for for everyone to use and help improve lives. But I also love apps that someone clearly made to address a very specific problem that they were solving.

I love to imagine the person struggling and thinking, "someone must have already made an app for this. I can't be the only one who needs help manually counting the transportation percentage at a series of crossings!" Then finally doing the Thanos thing and just knocking out an entire app to share with the world.