{
  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
    naersk.url = "github:nmattia/naersk";
  };
  outputs = { self, nixpkgs, flake-utils, naersk }:
    flake-utils.lib.eachDefaultSystem (
      system: let
        pkgs = nixpkgs.legacyPackages."${system}";
        naersk-lib = naersk.lib."${system}";
      in
        rec {
          # `nix build`
          packages.hello-world = naersk-lib.buildPackage {
            pname = "hello-world";
            root = ./.;
          };
          defaultPackage = packages.hello-world;
          # `nix run`
          apps.hello-world = flake-utils.lib.mkApp {
            drv = packages.hello-world;
          };
          defaultApp = apps.hello-world;
          # `nix develop`
          devShell = pkgs.mkShell {
            nativeBuildInputs = with pkgs; [ rustc cargo ];
          };
        }
    );
}

{
  "nodes": {
    "flake-utils": {
      "locked": {
        "lastModified": 1623875721,
        "narHash": "sha256-A8BU7bjS5GirpAUv4QA+QnJ4CceLHkcXdRp4xITDB0s=",
        "owner": "numtide",
        "repo": "flake-utils",
        "rev": "f7e004a55b120c02ecb6219596820fcd32ca8772",
        "type": "github"
      },
      "original": {
        "owner": "numtide",
        "repo": "flake-utils",
        "type": "github"
      }
    },
    "naersk": {
      "inputs": {
        "nixpkgs": "nixpkgs"
      },
      "locked": {
        "lastModified": 1623927034,
        "narHash": "sha256-sGxlmfp5eXL5sAMNqHSb04Zq6gPl+JeltIZ226OYN0w=",
        "owner": "nmattia",
        "repo": "naersk",
        "rev": "e09c320446c5c2516d430803f7b19f5833781337",
        "type": "github"
      },
      "original": {
        "owner": "nmattia",
        "repo": "naersk",
        "type": "github"
      }
    },
    "nixpkgs": {
      "locked": {
        "lastModified": 1626300184,
        "narHash": "sha256-1B5P7EUAFeA+P7m6jzbHtrMKcIkPCjQj7lfQPmrYL44=",
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "23cd13167a1432550e48734079c2ffeeb441fb96",
        "type": "github"
      },
      "original": {
        "id": "nixpkgs",
        "type": "indirect"
      }
    },
    "nixpkgs_2": {
      "locked": {
        "lastModified": 1626300184,
        "narHash": "sha256-1B5P7EUAFeA+P7m6jzbHtrMKcIkPCjQj7lfQPmrYL44=",
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "23cd13167a1432550e48734079c2ffeeb441fb96",
        "type": "github"
      },
      "original": {
        "id": "nixpkgs",
        "type": "indirect"
      }
    },
    "root": {
      "inputs": {
        "flake-utils": "flake-utils",
        "naersk": "naersk",
        "nixpkgs": "nixpkgs_2"
      }
    }
  },
  "root": "root",
  "version": 7
}