Refactor Nix package definitions in flake.nix and run.nix to improve dependency handling and formatting. Changes include renaming variables for clarity, adding the download package to run.nix, and enhancing the structure of package overrides.

flake.nix

@@ -31,21 +31,27 @@
     {
       overlays.default = _final: prev: {
         python3Packages = prev.python3Packages.override {
-          overrides = pyself: pysuper: {
+          overrides = _pyself: _pysuper: {
             webcomix = prev.python3Packages.callPackage ./pkgs_pr/webcomix.nix { };
+            download = prev.python3Packages.callPackage ./pkgs/download.nix {
+              webcomix = _pyself.webcomix;
             };
           };
         };
+        download = _final.python3Packages.download;
+      };
       packages.x86_64-linux =
         let
           scriptBin = path: name: pkgs.writeScriptBin name (builtins.readFile path);
-          pkgsBin = path: _name: 
+          pkgsBin =
+            path: _name:
             let
               content = builtins.readFile path;
             in
-            if builtins.match ".*(buildPythonPackage|buildPythonApplication).*" content != null
-            then pkgs.python3Packages.callPackage path { }
-            else pkgs.callPackage path { };
+            if builtins.match ".*(buildPythonPackage|buildPythonApplication).*" content != null then
+              pkgs.python3Packages.callPackage path { }
+            else
+              pkgs.callPackage path { };
         in
         {
           citra = pkgs.callPackage ./pkgs/citra/default.nix { branch = "nightly"; };

pkgs/run.nix

@@ -7,7 +7,7 @@
   xclip,
   ghostty,
   rmlint,
-  callPackage,
+  download,
   ...
 }:
 writeShellApplication {
@@ -21,6 +21,7 @@ writeShellApplication {
     xclip
     ghostty
     rmlint
+    download
   ];
 
   text = builtins.readFile ../src/packaged_scripts/run.sh;