best practices: got rid of rec

pkgs/vdhcoapp/filepicker.nix

@@ -8,32 +8,37 @@
   glib,
 }:
 
-rustPlatform.buildRustPackage rec {
-  pname = "filepicker";
-  version = "1.0.1";
+rustPlatform.buildRustPackage (
+  let
+    version = "1.0.1";
+  in
+  {
+    pname = "filepicker";
+    inherit version;
 
-  src = fetchFromGitHub {
-    owner = "paulrouget";
-    repo = "static-filepicker";
-    rev = "v${version}";
-    hash = "sha256-7sRzf3SA9RSBf4O36olXgka8c6Bufdb0qsuTofVe55s=";
-  };
+    src = fetchFromGitHub {
+      owner = "paulrouget";
+      repo = "static-filepicker";
+      rev = "v${version}";
+      hash = "sha256-7sRzf3SA9RSBf4O36olXgka8c6Bufdb0qsuTofVe55s=";
+    };
 
-  cargoHash = "sha256-aal7ppFkCpNc+QTS4Qklsb9WfJ65QqG6p1eOskiX+/Q=";
+    cargoHash = "sha256-aal7ppFkCpNc+QTS4Qklsb9WfJ65QqG6p1eOskiX+/Q=";
 
-  buildInputs = [
-    atk
-    gtk3
-    glib
-  ];
+    buildInputs = [
+      atk
+      gtk3
+      glib
+    ];
 
-  nativeBuildInputs = [ pkg-config ];
+    nativeBuildInputs = [ pkg-config ];
 
-  meta = with lib; {
-    description = "File picker used by VDHCoApp";
-    homepage = "https://github.com/paulrouget/static-filepicker";
-    license = licenses.gpl2;
-    mainProgram = "filepicker";
-    maintainers = with maintainers; [ hannesgith ];
-  };
-}
+    meta = with lib; {
+      description = "File picker used by VDHCoApp";
+      homepage = "https://github.com/paulrouget/static-filepicker";
+      license = licenses.gpl2;
+      mainProgram = "filepicker";
+      maintainers = with maintainers; [ hannesgith ];
+    };
+  }
+)