up to now I install all my updates manually, maybe I should look into this: how to auto-update.

lol. Same issue for me. I run it for months, and surprisingly (for me) nothing breaks at all.

But fucking ssh shows warnings regarding some “post quantum crypto” stuff; recommending software update, that was not there before lol.

I have bad experience with self-hosting termux server on a Samsung-Android device. The background process would be terminated after one week of hands off runtime. I tried to rectify this in the power-saving settings to no avail.

Your server works for me, it displays:

Battery: 63% DISCHARGING

Temp: 12°C

Interesting how the tiny BSD fraction had a lead over Linux in 1995