>If you feel you need to add a conflict to a package that was never in Debian in the first place, fine with me. But is it necessary? As I see it it is a perfect example of "user messed his system up". :)
I completely agree. I'm only doing this for a year, because so many people have installed waydroid through the unofficial repository. And waydroid is now in Debian! https://tracker.debian.org/pkg/waydroid

