{
  description = "All system configurations for Vili Sinervä";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-25.05";
  };

  outputs =
    { nixpkgs, ... }:
    {
      nixosConfigurations = (
        let
          hosts = map (name: (nixpkgs.lib.removeSuffix ".nix" name)) (
            builtins.attrNames (builtins.readDir ./hosts)
          );
        in
        builtins.listToAttrs (
          map (
            host:
            nixpkgs.lib.nameValuePair host (
              nixpkgs.lib.nixosSystem {
                system = "x86_64-linux";
                modules = [ ./hosts/${host}.nix ];
              }
            )
          ) hosts
        )
      );
    };
}