voor-kia: Add client mods

lib/minecraft.nix

@@ -27,4 +27,25 @@
         cp * $out/mods
       '';
     };
+
+  mkModpackZip = { name, version, mods }:
+    pkgs.stdenv.mkDerivation {
+      inherit name version;
+      srcs = map pkgs.local.fetchFromCurseForge mods;
+
+      sourceRoot = "src/";
+      preUnpack = "mkdir -p src/";
+      unpackCmd = "cp $curSrc src/";
+
+      buildInputs = [ pkgs.zip];
+
+      buildPhase = ''
+        zip voor-kia-mods.zip *.jar
+      '';
+
+      installPhase = ''
+        mkdir -p $out/
+        cp voor-kia-mods.zip $out/
+      '';
+    };
 }