create-a-static-blog-with-nix/nixos-configuration/flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    our-site = {
      url = "git+ssh://gitea@gitea.kalu.blue/tech-blog/create-a-static-blog-with-nix.git?ref=main&shallow=1";
      inputs.nixpkgs.follows = "nixpkgs"; # Will use the same Nixpkgs as the NixOS system
    };
  };

  outputs =
    { self, nixpkgs, ... }@inputs:
    {
      nixosConfigurations.my-server-name = nixpkgs.lib.nixosSystem {
        specialArgs = {
          # These will be passed as arguments to the modules
          inherit inputs;
        };

        modules = [
          # Essential for test VM
          {
            virtualisation.vmVariant = {
              virtualisation = {
                memorySize = 2048;
                cores = 2;
                # Disable graphics to avoid gtk error
                graphics = false;
              };
            };

            # Create a user, so we can login and test
            users.users.test = {
              isNormalUser = true;
              # Never use this, use `hashedPassword` instead
              initialPassword = nixpkgs.lib.mkForce "123123";
              # So we can use `sudo` mainly for `sudo shutdown now` and to be able to debug `caddy`
              group = "wheel";
            };
          }
          # Some configuration
          {
            nixpkgs.hostPlatform = "x86_64-linux";
            system.stateVersion = "25.11";
          }
          ./my-static-site.nix
        ];
      };
    };
}