I spent the last few weeks getting deep into autoinstalls for Ubuntu. I couldn't find a single doc that explained all the complex moving parts. As a result, there was a lot of trial and error. I finally understand the bigger picture and hope to share it with others:

[How to automate a bare metal Ubuntu 22.04 LTS installation](https://jimangel.io/posts/automate-ubuntu-22-04-lts-bare-metal/)

I also took a detour for doing a similar thing to [Raspberry Pi and Ubuntu](https://jimangel.io/posts/autoinstall-ubuntu-22-on-raspberry-pi-4/).

Hope they help your future server automation!
Looks very detailed and well done! Curious though, why not just use Ansible?