{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = { self, nixpkgs, ... }: {
    hosts = {
      nitter = {
        site = "vs";
      };
      nixos-coturn = {
        site = "vs";
      };
      tor-relay = {
        site = "vs";
      };
      jackett = {
        site = "vs";
      };
      hydra = {
        site = "vs";
      };
      web-public-2 = {
        site = "vs";
      };
    };

    generateColmenaHost = name: host : {
      deployment = {
        targetHost = "${name}.${host.site}.grzb.de";
        targetUser = "colmena-deploy";
      };

      imports = [
        ./configuration/common
        ./configuration/proxmox-vm
        ./hosts/${name}
      ];
    };

    colmena = {
      meta = {
        nixpkgs = import nixpkgs {
          system = "x86_64-linux";
        };
      };
    } // builtins.mapAttrs (self.generateColmenaHost) self.hosts;

    hydraJobs = {
      nixConfigurations.nitter = let system = "x86_64-linux";
      in nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
        ./configuration/common
        ./configuration/proxmox-vm
        ./hosts/nitter
        ];
      };
    };
  };
}