i can use a say command in a bind for knowing if i pressed the correct bind?
It technically is not allowed, since it is scripting after all, but it is so minor that most people do not even care. I also think that most of the times it doesn't work.
Audio requirements
Startong today, runs that require video proof (top 25) and runs beyond that where video is the only form of proof, now require audio, as recording audio for only the game is now a native OBS feature.
Recent runs