{
  nixpkgs ? import <nixpkgs> {},
  nrNanos ? 1, # Number of nanos
}: let
  pkgs = nixpkgs;
  webserver = {
    services.httpd.enable = true;
    services.httpd.adminAddr = "mail@stefanjunker.de";
    services.httpd.documentRoot = "${pkgs.nixops}/share/doc/nixops/";
    networking.firewall.allowedTCPPorts = [80];
  };

  mkNano = {n}: {
    imports = [
      (import ./nano/configuration.nix {inherit pkgs n;})
      ../configuration/common/user/root.nix
    ];
    deployment.targetEnv = "none";
    deployment.targetHost = "nano${toString n}";
  };

  mkNanos = n:
    nixpkgs.lib.nameValuePair "nano${toString n}" (mkNano {inherit n;});
in
  nixpkgs.lib.listToAttrs (map mkNanos (nixpkgs.lib.range 0 (nrNanos - 1)))