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>download twitch vod for video + no music audio
>download yt audio for music (right after stream so nothing got muted yet)
>decide to mux them together in a single file with two audio streams
>yt audio doesn't quite match
>do a bunch of calculations based on a few samples
>speed up the intro music just a tiny bit so it's exactly 4 seconds shorter when Sayu switches on the camera
>ffmpeg is painfully slow
I am here, let's see if the next muxing attempt will succeed or back to the drawing board again