Turns out that raylib works quite well with FORTRAN:

"Tic-Tac-Toe in Fortran with Raylib”: https://www.twitch.tv/videos/1861499073

“Fortran is the Next Rust”: https://www.twitch.tv/videos/1864047709

https://github.com/tsoding/tic-tac-toe-fortran-raylib