when you press the "press me" button, if someone else is on and it isn't broken, then the white square will turn black on their screen, and when they press their "press me" your white square will turn black.
now mostly functional, most of the issues can be fixed by restarting the game (page reload). You might be able to do morse code. changelog: 10/31/22: added a small colored triangle that changes to green if someone else is online 2/13/22: released
