Oh damn, this is more of a headache than I expected.

I’ll take a look at termux and syncthing-tray when I have time for that.
I already had a cursory glance, and syncthing-tray seems to have a lot of caveats and syncthing on termux is not quite the gui-app I wanted. But at least there are some apps even if they aren’t ideal yet.

More info in this article on linuxiac

And in the process fucked up how Germans say numbers for centuries.

Sounds interesting. Do you know where I can read more about that?
When I try searching for Luthers influence on numbers, I just get data about Luther (year of birth, age at death, etc.).

How numbers are pronounced.
In German the number 185 is pronounced as “hundred-five-and-eighty” (hundertfünfundachtzig), the digits are not spoken in order of their magnitude.
Not terrible, not great.