I have not looked into this but it is interesting. Maybe ill tinker with it just for the hell of it. I don't really have a real need for it but when has that stopped me from doing something random? Archive: https://archive.today/KxpYs From the post: >>As some of you may have already noticed, the latest Raspberry Pi OS release based on Debian Trixie now includes cloud-init. This marks the beginning of a transition away from our legacy first-boot customisation system based on the firstrun.sh script. Cloud-init is a cross-platform, distribution-agnostic tool used to automatically configure systems on first boot. (Definition adapted from the official cloud-init documentation.) With it, you can provision your Raspberry Pi images with users, network settings, SSH keys, storage configurations, and much more — all without manually logging in after flashing the image.