I recite IPv6 addresses on my company networks from memory all the time. It helps that we got a bit lucky on our allocation. There are no letters.

Plus it’s really easy to number subnets in a way that makes sense.

Yeah, no. If remote hosts could not send traffic to hosts behind NAT almost nothing would work.

The hacks employed to make NAT work make security worse, not better.

I did it by acquiring my own AS number and prefix, allowing me to set the geofeed, and announcing it via public BGP from a box in a data center. Took a few days for most things to pick it up the geolocation.

Here is an excerpt of the table of contents for the book “Linux Application Development”:

• Process Primitives
  • Having Children
  • Watching Your Children Die
  • Running New Programs
  • A Bit of History: vfork()
  • Killing Yourself
  • Killing Others
  • Dumping Core
• Simple Children
  • Running and Waiting with system()
  • Reading or Writing from a Process

It’s actually quite a good book.

Yes. I have a personal app that I made many years ago and used on my Pixel 4 and 6. It would not work on my 8 until I updated the sdk version and some of the tooling.

I use Home Assistant for that. It ties everything together quite nicely.

Also, a lot of the generic devices are really Tuya devices and can be controlled using a single instance of Tuya Smart Life.