I can only assume this (copy-pasted from wikipedia)

The C Programming Language (sometimes termed K&R, after its authors’ initials) is a computer programming book written by Brian Kernighan and Dennis Ritchie, the latter of whom originally designed and implemented the C programming language, as well as co-designed the Unix operating system with which development of the language was closely intertwined

Beautiful! Is it after sunrise?

Not a restaurant, but head over to Cafe Buchhandlung and Zosch - two bars in the area which still have the old Berlin vibes

+1 for Banh Mi Stable. I agree on most places not being worth it. I’d add Mädchenitaliener (Italian) to the list. Its small and cosy, but usually full. They have a fig pasta which I like. If you want a place with a pretty glamorous flair, check out Coccodrillo too.

Signal

This

I use Jerboa, never tried anything else. Does the job

I would also say this. Njalla is good

My first thought. Where is this?

Tailscale maybe? They have a mode where you can configure a site to site links, you could route the docker networks. https://tailscale.com/kb/1019/subnets