The URL for the training session we did on Thursday morning is:

https://bbb2.lpc.events/playback/presentation/2.3/62e3456da3c0598910e28d204ee24b669d714c04-1699539923588?t=37m55s

Note that the URL skips to time index 37:55 which is where the training actually begins (the hackroom got started early).