Ok, thanks. It really sounds like a simple solution to the problem. I think even if it does drain battery for some reason (e.g. a repository with a huge number of files), this could be automated, like the on/off switch to run the app to sync and be done with it.

On iPhone, I use sushi train, and it does automated sync via Shortcuts (a built-in app for light automations), via timers or other events like charging. It works perfectly fine for my use case. It syncs my notes multiple times a night, plus during the day while on charge or when I join trusted WiFi networks. I expect the same can be achieved on an Android. So, really, the CLI version might do the job plenty good, I believe.