The biggest pain point in Quest modding is the "Unity Crash" loop. Stable builds undergo more rigorous community testing. While mods are never 100% bug-free, a stable core means your game will launch, your songs will load, and your saves won't get corrupted as easily.
You don't need a PC once BMBF is installed. You can browse BeastSaber or ScoreSaber directly inside VR.
Using tools like SyncSaber , your bookmarked songs can automatically download directly to your headset through BMBF. How to Use the Stable Version
: Connect your headset to your computer, open SideQuest, and drag the downloaded APK into the "Install APK file from folder" section.