flake.lock

{
  "nodes": {
    "nixpkgs": {
      "locked": {
        "lastModified": 1711624657,
        "narHash": "sha256-IViG6BKCJY/I6oRNfAANf/QitYylepQSCzgam0TF+bs=",
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "72c6ed328aa4e5d9151b1a512f6ad83aca7529fa",
        "type": "github"
      },
      "original": {
        "id": "nixpkgs",
        "type": "indirect"
      }
    },
    "root": {
      "inputs": {
        "nixpkgs": "nixpkgs",
        "utils": "utils"
      }
    },
    "systems": {
      "locked": {
        "lastModified": 1681028828,
        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
        "owner": "nix-systems",
        "repo": "default",
        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
        "type": "github"
      },
      "original": {
        "owner": "nix-systems",
        "repo": "default",
        "type": "github"
      }
    },
    "utils": {
      "inputs": {
        "systems": "systems"
      },
      "locked": {
        "lastModified": 1701680307,
        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
        "owner": "numtide",
        "repo": "flake-utils",
        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
        "type": "github"
      },
      "original": {
        "owner": "numtide",
        "repo": "flake-utils",
        "type": "github"
      }
    }
  },
  "root": "root",
  "version": 7
}

flake.nix

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

  outputs = { self, nixpkgs, utils }:
    utils.lib.eachDefaultSystem (system:
      let pkgs = import nixpkgs { };
      in { packages = { inherit (pkgs) hello; }; });
}