nix-config/flake.lock

{
  "nodes": {
    "nixpkgs": {
      "locked": {
        "lastModified": 1612369752,
        "narHash": "sha256-JtncDAt+qqUvdaIEpXmLXveu/AeXOPOYGDbpPoG2zgA=",
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "7cbec40a09533dd9c525d6ab94dddfe77768101a",
        "type": "github"
      },
      "original": {
        "owner": "NixOS",
        "ref": "nixos-unstable",
        "repo": "nixpkgs",
        "type": "github"
      }
    },
    "root": {
      "inputs": {
        "nixpkgs": "nixpkgs"
      }
    }
  },
  "root": "root",
  "version": 7
}