diff --git a/pkgs/by-name/ul/ultimatepp/buildUppPackage.nix b/pkgs/by-name/ul/ultimatepp/buildUppPackage.nix
index 83f795b..8f4d581 100644
--- a/pkgs/by-name/ul/ultimatepp/buildUppPackage.nix
+++ b/pkgs/by-name/ul/ultimatepp/buildUppPackage.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation (self: {
       "$assemblies" \
       ${lib.escapeShellArg package} \
       ${buildMethod} \
-      -${if buildShared then "S" else "s"}uvr "-H$NIX_BUILD_CORES" \
+      -${if buildShared then "S" else "s"}uvr \
       ${flagsString} \
       $out/${output}
 
diff --git a/pkgs/by-name/ul/ultimatepp/package.nix b/pkgs/by-name/ul/ultimatepp/package.nix
index 867f5cc..8e4b8af 100644
--- a/pkgs/by-name/ul/ultimatepp/package.nix
+++ b/pkgs/by-name/ul/ultimatepp/package.nix
@@ -5,8 +5,6 @@
   makeWrapper,
   pkg-config,
   stdenv,
-  makeDesktopItem,
-  copyDesktopItems,
 
   # pkg-config dependencies
   libpng,
@@ -62,7 +60,7 @@ in {
   nativeBuildInputs = [
     makeWrapper
     pkg-config
-  ] ++ lib.optional (!self.passthru.bootstrap) copyDesktopItems;
+  ];
 
   buildInputs = uppsrcDependencies ++ lib.optional (!self.passthru.bootstrap) libclang;
 
@@ -96,8 +94,8 @@ in {
     if self.passthru.bootstrap then ''
     make -f umkMakefile -j $NIX_BUILD_CORES "$makeFlagsArray"
   '' else ''
-    ${lib.getExe' selfBootstrap "umk"} uppsrc ide ${buildMethod} -rvs "-H$NIX_BUILD_CORES"
-    ${lib.getExe' selfBootstrap "umk"} uppsrc umk ${buildMethod} -rvs "-H$NIX_BUILD_CORES"
+    ${lib.getExe' selfBootstrap "umk"} uppsrc ide ${buildMethod} -rvs
+    ${lib.getExe' selfBootstrap "umk"} uppsrc umk ${buildMethod} -rvs
   '') + ''
     runHook postBuild
   '';
@@ -114,29 +112,10 @@ in {
 
     wrapProgram $out/bin/theide \
       --unset WAYLAND_DISPLAY
-
-    mkdir -p $out/share/icons/hicolor/scalable/apps
-    cp uppsrc/ide/icon.svg $out/share/icons/hicolor/scalable/apps/ultimatepp-theide.svg
-    for size in 16 32 64 128 256 512; do
-      mkdir -p $out/share/icons/hicolor/''${size}x''${size}/apps
-      cp uppsrc/ide/icon''${size}x''${size}.png $out/share/icons/hicolor/''${size}x''${size}/apps/ultimatepp-theide.png
-    done
   '') + ''
     runHook postInstall
   '';
 
-  desktopItems = [
-    (makeDesktopItem {
-      name = "ultimatepp-theide";
-      exec = "theide";
-      icon = "ultimatepp-theide";
-      desktopName = "TheIDE";
-      comment = "The Ultimate++ Framework IDE";
-      categories = [ "Development" "IDE" ];
-      terminal = false;
-    })
-  ];
-
   passthru = {
     bootstrap = false;
     inherit uppsrcDependencies;