nixos/flake.nix

{
  description = "A rewrite of the original Sakamoto NixOS config.";
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    flake-utils = {
      url = "github:numtide/flake-utils";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    darwin = {
      url = "github:lnl7/nix-darwin";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = {
    self,
    nixpkgs,
    flake-utils,
    home-manager,
    darwin,
    ...
  } @ inputs:
    flake-utils.lib.eachDefaultSystem (
      system: let
        config = import ./config.nix;
        lib = nixpkgs.lib;
        pkgs = nixpkgs.legacyPackages.${system};
        args = {inherit inputs system;} // config;
      in {
        nixosConfigurations = {
          desktop = lib.nixosSystem {
            inherit system;
            specialArgs = args;
            modules = [];
          };
        };
        homeConfigurations = {
          desktop = home-manager.lib.homeManagerConfiguration {
            pkgs = import nixpkgs {
              inherit system;
              extraSpecialArgs = args;
              modules = [];
            };
          };
        };
        darwinConfigurations = {
          macos = darwin.lib.darwinSystem {
            inherit system;
            specialArgs = args;
            modules = [
              ./hosts/macos/darwin.nix
              home-manager.darwinModules.home-manager
              {
                home-manager.useGlobalPkgs = true;
                home-manager.useUserPackages = true;
                home-manager.extraSpecialArgs = args;
              }
            ];
          };
        };
      }
    );
}