Simple proof of concept for how to do other types of services

nixos/modules/services/security/hologram-server.nix

@@ -23,6 +23,8 @@ let
     stats  = cfg.statsAddress;
     listen = cfg.listenAddress;
   });
+
+  script = "${pkgs.hologram.bin}/bin/hologram-server --debug --conf ${cfgFile}";
 in {
   options = {
     services.hologram-server = {
@@ -94,9 +96,15 @@ in {
       after       = [ "network.target" ];
       wantedBy    = [ "multi-user.target" ];
 
-      serviceConfig = {
-        ExecStart = "${pkgs.hologram.bin}/bin/hologram-server --debug --conf ${cfgFile}";
-      };
+      inherit script;
+    };
+
+    docker-containers.hologram-server = {
+      inherit script;
+    };
+
+    trivial-services.hologram-server = {
+      inherit script;
     };
   };
 }