I got this post by rss so YES,
But do not friendica allow you to join community by Activity pub? (Benefit is you can reply directly from there)

Newsboat on pc and newsboat in termux 😅

Not sure if the Android client has this functionality too.

Nope for now

I personally do not use shizuku because i reboot my system a lot and i do not have wifi connection to setup it again just using phone.

But this solution helps with most part of problem, i can configure bash to check time, if it is 2000 to 7000 use dark theme otherwise light theme.

If i can somehow get current system theme without root/adb, it will be better.

Anyway, thanks for help. I will use this setup for now ☺️