If you've heard of nix os, I'm working on a script that will allow you to create a 'nix.conf'-ish file that can be used with the arch iso to create reproducible builds of archlinux.

I'm not a dev or educated in programming at all, I just love Linux. If you're interested its at https://gitlab.com/setsav/archdeploy

You probably want to clone the disk. There are lots of guides on this out there. I usually use CloneZilla.

Here’s an Arch article discussing migration (including cloning) https://wiki.archlinux.org/title/Migrate_installation_to_new_hardware

If you don't want to clone the disk but do want to match system level stuff (outside the home folder) you might like to use https://github.com/CyberShadow/aconfmgr