moved packages to common-modules

modules/common-modules/pkgs/default.nix

@@ -1,4 +1,17 @@
-# this folder is for custom derivations
-{...}: {
-  # package = pkgs.callPackage ./package.nix {};
+{pkgs, ...}: {
+  nixpkgs.overlays = [
+    (final: prev: {
+      webtoon-dl =
+        pkgs.callPackage
+        ./webtoon-dl.nix
+        {};
+    })
+    # TODO: this package always needs to be called with the --in-process-gpu flag for some reason, can we automate that?
+    (final: prev: {
+      prostudiomasters =
+        pkgs.callPackage
+        ./prostudiomasters.nix
+        {};
+    })
+  ];
 }