diff --git a/14-rock-paper-scissors/default.nix b/14-rock-paper-scissors/default.nix
index ee9c4df..0cd3570 100644
--- a/14-rock-paper-scissors/default.nix
+++ b/14-rock-paper-scissors/default.nix
@@ -81,7 +81,24 @@ let
         };
       };
     };
+  image = pkgs.dockerTools.buildLayeredImage {
+    name = pname;
+    tag = "latest";
+    created = "now";
+    config = {
+      Cmd = [ "${pkgs.jdk}/bin/java" "-jar" "${package}/bin/${pname}.jar" "--host" "0.0.0.0" ];
+      ExposedPorts = {
+        "8080/tcp" = {};
+      };
+    };
+  };
+  # image =     pkgs.dockerTools.buildLayeredImage { # so, wow, this works
+  #     name = "hello2";
+  #     tag = "latest";
+  #     config.Cmd = [ "${pkgs.hello}/bin/hello" ];
+  #   };
 in {
   package = package;
   module = module;
+  image = image;
 }
diff --git a/flake.nix b/flake.nix
index 3c1abc6..6d18e0a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -45,6 +45,7 @@
         packages.testimonials-grid = testimonials-grid.package;
         nixosModules.testimonials-grid = testimonials-grid.module;
         packages.rock-paper-scissors = rock-paper-scissors.package;
+        packages.rock-paper-scissors-image = rock-paper-scissors.image;
         nixosModules.rock-paper-scissors = rock-paper-scissors.module;
       });
   # see https://serokell.io/blog/practical-nix-flakes