[QUESTION] How well does this compare to `adevtool`?

As the title says, how well does this compares to `adevtool` which GrapheneOS uses? Again, feel free to close the issue if my question makes no sense. I'm just trying to understand stuffs here. I was actually working on my own setup for setting on `avbroot` and just learnt that [my-avbroot-setup](https://github.com/chenxiaolong/my-avbroot-setup/blob/master/patch.py) actually achieves almost same -- starting with fetching and verifying otas, goes on to patching as well. So `adevtool` came to my mind all of a sudden. I'm yet to try out and experiment on this (cannot leverage my phone for now). I'm just confused.