flake.nix

{
  description = "Nick's NixOS";

  inputs = {
    # Nixpkgs
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";

    # Lix
    # Note that this assumes you have a flake-input called nixpkgs,
    # which is often the case. If you've named it something else,
    # you'll need to change the `nixpkgs` below.
    lix-module = {
      url = "https://git.lix.systems/lix-project/nixos-module/archive/2.91.1-2.tar.gz";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nixpkgs.follows = "nixos-cosmic/nixpkgs";
    nixos-cosmic.url = "github:lilyinstarlight/nixos-cosmic";
  };

  outputs =
    {
      self,
      nixpkgs,
      lix-module,
      nixos-cosmic,
      ...
    }@inputs:
    let
      inherit (self) outputs;
      lib = nixpkgs.lib;
    in
    {
      # NixOS configuration entrypoint
      # Available through 'nixos-rebuild --flake .#your-hostname'
      nixosConfigurations = {
        # Personal laptop
        hermes = lib.nixosSystem {
          system = "x86_64-linux";

          modules = [
            ./hosts/hermes
            lix-module.nixosModules.default
            {
              nix.settings = {
                substituters = [
                  "https://cache.nixos.org/"
                  "https://cosmic.cachix.org/"
                ];
                trusted-public-keys = [ "cosmic.cachix.org-1:Dya9IyXD4xdBehWjrkPv6rtxpmMdRel02smYzA85dPE=" ];
              };
            }
            nixos-cosmic.nixosModules.default
          ];
          specialArgs = {
            inherit inputs outputs;
          };
        };
      };
    };
}