The fun part of open source is that a market of 1 interested person is enough. As an extreme case, Linus Torvalds decided to write a terminal emulator, do it s

The fun part of open source is that a market of 1 interested person is enough. As an extreme case, Linus Torvalds decided to write a terminal emulator, do it straight on the bare metal for his PC, accidentally deleted his OS in the process, then got carried away a bit trying to survive without real OS. None of these decisions made any business sense, yet we have the entire Linux ecosystem out of it.