If it’s your PB run, the timer should tell you to export your run to splits.io after your run. If you forgot to click that you can go to the game’s category (the screen where you click what type of run) Click the pencil and then splits.io tab to export again. From there I guess you could import it to whatever you wanted. For mirroring the splits on a computer for streaming, clicking the FAQ tab under settings gives some instructions on how to do so with OBS.