I, SPQR, have successfully installed SFML on this repl, so that you all may use it for your enjoyment. Feel free to fork this and modify it for your own purposes.
If you use this please give a link to this post
If you use this to make something for the Game Jam and win, please give me 1% of a BTC ($38 or so)
(you don't actually have to do that. It'd be nice if you did, though.)