That’s pretty much me aswell, besides that I didn’t even spend energy to try and learn others. Simple docker compose, simple ui and easy way to add services.

I am sure there are alternatives that allow for more elaborate setups and fancier things. But for the low effort I put into it, I got a page with some nice buttons with appropriate icons that scales to whatever screen size it’s displayed on. Only additional thing I did was enabled to show some basic info to see if e.g. SABnzbd is downloading something, which was also super easy.

Wikipedia on rooting.

Rooting is the process by which users of Android devices can attain privileged control (known as root access) over various subsystems of the device, usually smartphones and tablets

You can install apps from other sources without root access on Android. But some may need those extra permissions to function.