Hacker News Reader

adb connecting a device to itself is just bad design and a hack. Either the capabilities should just be granted directly to the app or it should all be blocked.

View on HN

Same can be said about loopback device in general. Why do you need to use networking when you are literally on the same device and can use binder/dbus and friends with native apps?

Shizuku uses Binder AFAICS[^1]. Looking deeper it seems that Shizuku does not connect to the device itself per se, but rather it has a privileged server launched manually through adb. Never used Shizuku, so can't say for sure.

[1]: https://github.com/rikkaapps/shizuku#how-does-shizuku-work

Shizuku essentially implements an API that your OS creator should have implemented via using adb access to have more privileges than a regular app could have access to. If your OS creator implemented these APIs they could properly implement them without this hack or requiring adb to be used.

Reply on news.ycombinator.com