I’ve used nix for roughly a year. Flakes is the way to go. It’s the most simple cut and dry shit works distro aside from Linux mint but the caveat is you have to essentially learn how the nix config file works. You can install your configuration file on any machine, anytime, anywhere and it’ll boot as your exact carbon copy. Its a great distro you can trust to maintain with two files entirely. Cake to remember and backup.

Downsides are keeping config file backed up often. And knowing that anything you want done has to go into config document. I can answer any questions. I’m busy so I can’t type more.