Is it possible to configure Magisk by ADBing in through TWRP when you install it, so you can get it working on an initial install. I'm having problems with a splash screen -- my boot just locks at that process. I would like to see what's going on. I know Magisk provides LiveBoot would be a good fit, I can install in TWRP. But then I have to boot into Android to configure it to disable the boot screen (which I can not do).
From the buildlog of Magisk V13,
[magiskpolicy] Updated rules for Android O, and Liveboot support
I can't figure out how enable those rules outside of a working boot?