{
  description = "Homelab configuration";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    impermanence.url = "github:nix-community/impermanence";

    # Sops-nix, a secrets manager
    sops-nix.url = "github:Mic92/sops-nix";
    sops-nix.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs =
    { self, nixpkgs, ... }@inputs:
    let
      outputs = self.outputs;
      utils = import ./utils.nix { inherit nixpkgs inputs outputs; };

      homelabConfig = import ./config.nix;
      roles = import ./roles { inherit utils; };
      hosts = import ./hosts.nix { inherit homelabConfig roles; };
    in
    {
      nixosConfigurations = nixpkgs.lib.mapAttrs (
        hostname: value:
        (utils.mkSystem {
          inherit hosts;
          hostConfig = (value // { inherit hostname; });
        })
      ) hosts;
    };
}