I can tell you that I do all three. My daily driver is a laptop running NixOS with a highly customised desktop environment. I also have a small VPS that runni

I can tell you that I do all three. My daily driver is a laptop running NixOS with a highly customised desktop environment. I also have a small VPS that running NixOS that I communicate with via SSH. Finally, as work, we use a nix flake to simplify our build system. Most days of the year, that is handled entirely by the CI script and I don't have to think about it.