

Oh, yeah! Get a car, find a quite park, turn on the radio and chill.
Oh, yeah! Get a car, find a quite park, turn on the radio and chill.
Yes.
Source: Am Systems Admin (engineer/architect/your mom)
Other options are LUKS with Tang and Clevis, or LUKS with SSH and Dropbear.
Sorry, I have no details.
Edit: Tang/Clevis are local software and a network server that provide keys. If stolen, won’t boot.
SSH and Dropbear make it so you can login to provide keys.
For #2, there are multiple websites that deal with similar subjects. Pull good links from one and paste to another.
For #3, you are correct. Also, reading other blog posts on a linked blog.
Lots of different ways.
What features do you want?
What should my first configurations and preparations
Write on paper your goals. Write on paper a list of your systems and what needs to speak with what.
Then pick the most important or simplest device and get it connected the way you want.
I hate modern AI, but that is what we need it for. Maintaining old code bases, and not turning it into a text editor/AI API (unless that was the original intention).
Edit: I have to add more words. Maintaining code bases includes compling and testing the code on a variety of hardware. Running tests against that code. Responding to questions. It is a massive amount of work.