nixos-configuration

When adding a new host:

install NixOS via the graphical installer
mv /etc/hardware-configuration ./devicename-hardware-configuration.nix
copy an existing devicename.nix
change import to new-devicename-hardware-configuration.nix
set the hostname and optional imports in new-devicename.nix
ln -s ./new-devicename.nix /etc/nixos/configuration.nix
sudo nix-channel --add https://github.com/nix-community/home-manager/archive/release-23.05.tar.gz home-manager
apply