I recently rewrote my fork of cplay and got fed up with curses. Boy do I wish I had found this article earlier because it describes everything I painfully had to cobble together. This is great!

Just one nit: Doing stuff in a signal handler is usually a bad idea because it can interrupt your code at any time. The usual work around is a trick called "self-pipe". https://ldpreload.com/blog/signalfd-is-useless

For anyone interested, I created a library in the process: https://github.com/xi/boon (It takes some inspiration from react but bare with me, I think it actually makes sense.)