pattern/flake.nix at master · sotormd/pattern · GitHub

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{
  description = "image-based atomic nix-provisioned systems";

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

  outputs =
    { self, ... }@inputs:
    let
      system = "x86_64-linux";
      pkgs = inputs.nixpkgs.legacyPackages.${system};
    in
    {
      nixosModules.pattern = ./module;

      nixosConfigurations = {

        demo = inputs.nixpkgs.lib.nixosSystem {
          inherit system;
          specialArgs = { inherit inputs; };
          modules = [
            self.nixosModules.pattern
            ./demo

            { pattern.image.version = "0.0.1"; }
          ];
        };

        demo-update = inputs.nixpkgs.lib.nixosSystem {
          inherit system;
          specialArgs = { inherit inputs; };
          modules = [
            self.nixosModules.pattern
            ./demo

            {
              pattern.image.version = "0.0.2";
              environment.systemPackages = [ pkgs.fastfetch ];
            }
          ];
        };

      };

      packages.${system} = {
        gen-keyring = pkgs.writeShellScriptBin "gen-keyring" (builtins.readFile ./scripts/gen-keyring);
        sign-release = pkgs.writeShellScriptBin "sign-release" (builtins.readFile ./scripts/sign-release);
        run-demo = pkgs.callPackage ./scripts/run-demo.nix { };
      };
    };
}