Thank you, that's honestly good to hear since I sacrificed sleep to make it available. The wait will hopefully be worth it when I have the funding to push through the last of the work to make sandbox mode available!
Sorry for the confusion, playlist mode is meant to be played alongside your chosen app/program. I have plans to add built-in music in the future, but I can also look into a way to include some APIs for logging into popular streaming services if it seems like it could be feasible.