diff --git a/build_system_fixes.patch b/build_system_fixes.patch
index 6bce128..c9c0c22 100644
--- a/build_system_fixes.patch
+++ b/build_system_fixes.patch
@@ -48,25 +48,8 @@
  
  ifeq ($(WARNINGS_AS_ERRORS), 1)
  	WERROR = -Werror
---- source/bin/packages/visualization.patch.orig	2026-01-05 12:29:07.853820367 +0100
-+++ source/bin/packages/visualization.patch	2026-01-05 14:49:55.207100350 +0100
-@@ -120,3 +120,14 @@
-      }
-  
-      void stop(){
-+--- Visualization-Library-master/CMakeLists.txt.orig	2026-01-05 14:47:57.797898038 +0100
-++++ Visualization-Library-master/CMakeLists.txt	2026-01-05 14:48:15.249865375 +0100
-+@@ -24,7 +24,7 @@
-+ project(Visualization_Library_SDK-${VLVERSION_MAJOR}.${VLVERSION_MINOR})
-+ 
-+ # Must be called after project!
-+-cmake_minimum_required(VERSION 2.6)
-++cmake_minimum_required(VERSION 3.5)
-+ 
-+ ################################################################################
-+ # Global Build Settings
 --- source/bin/packages/build.sh.orig	2026-01-05 12:14:03.963801383 +0100
-+++ source/bin/packages/build.sh	2026-01-12 06:20:42.586497821 +0100
++++ source/bin/packages/build.sh	2026-01-13 09:29:20.265932446 +0100
 @@ -86,6 +86,7 @@
  	tar xvzf faust-2.81.2.tar.gz
  	mv faust-2.81.2 faust
@@ -75,7 +58,15 @@
  	rm -fr libraries
  	tar xvzf ../faustlibraries_2024_01_05.tar.gz
  	mv faustlibraries libraries
-@@ -149,7 +150,7 @@
+@@ -130,6 +131,7 @@
+     tar xvzf Visualization-Library-master.tar.gz 
+     cd Visualization-Library-master/
+     patch -p1 <../visualization.patch
++    patch -p1 <../vl_lib_cmake.patch
+     sed -i.backup 's/add_subdirectory("freetype")//' src/vlGraphics/plugins/CMakeLists.txt
+     #sed -i s/"VL_ACTOR_USER_DATA 0"/"VL_ACTOR_USER_DATA 1"/ src/vlCore/config.hpp
+     export MYFLAGS="-std=gnu++11 $CPPFLAGS -fPIC -g  -Wno-c++11-narrowing -Wno-deprecated-declarations -Wno-implicit-function-declaration `pkg-config --cflags freetype2` " #  -D_GLIBCXX_USE_CXX11_ABI=0
+@@ -149,7 +151,7 @@
  
  build_libpds() {
  
@@ -83,4 +74,4 @@
 +    NOWARNS="-Wno-return-mismatch -Wno-implicit-function-declaration -Wno-int-conversion -Wno-implicit-int -Wno-format-security"
      
      rm -fr libpd-master
-     tar xvzf libpd-master.tar.gz
+     tar xvzf libpd-master.tar.gz
\ No newline at end of file
diff --git a/package.nix b/package.nix
index dbe7b07..49a34b8 100644
--- a/package.nix
+++ b/package.nix
@@ -153,10 +153,9 @@ in stdenv.mkDerivation rec {
     ./qt_paths.patch
     ./qwebengine_quirks.patch
     ./build_system_fixes.patch
-    # It might seem like a patch is missing ---
-    # `faust_llvm_21.patch'. But fear not; it is applied by the build
-    # system which is patched by `build_system_fixes.patch' to use the
-    # aforementioned.
+    # There are two other patches, which are applied with Radium's
+    # build system, not with Nix. Look at the last lines of
+    # ./build_system_fixes.patch to see that.
   ];
   
   postPatch = ''
@@ -166,12 +165,14 @@ in stdenv.mkDerivation rec {
       --replace-fail "/usr/bin/env" "${coreutils}/bin/env"
 
     # Next culprit: Python 2.7. Fucking janky build system.
-    # substituteInPlace bin/packages/build_python27.sh \
-    #   --replace-fail "CC=clang" "CC=${stdenv.cc}/bin/cc" \
-    #   --replace-fail "CXX=clang++" "CXX=${stdenv.cc}/bin/c++"
+    substituteInPlace bin/packages/build_python27.sh \
+      --replace-fail "CC=clang" "CC=${stdenv.cc}/bin/cc" \
+      --replace-fail "CXX=clang++" "CXX=${stdenv.cc}/bin/c++"
 
     # This is so Faust can build with LLVM > 18.
     cp ${./faust_llvm_21.patch} bin/packages/faust_llvm_21.patch
+    # So VisualizationLibrary can build with newer CMake.
+    cp ${./vl_lib_cmake.patch} bin/packages/vl_lib_cmake.patch
 
     # Fixes the desktop entry so it works nicely on GNOME.
     printf "StartupWMClass=radium_linux.bin" >> bin/radium.desktop
diff --git a/vl_lib_cmake.patch b/vl_lib_cmake.patch
new file mode 100644
index 0000000..62c5728
--- /dev/null
+++ b/vl_lib_cmake.patch
@@ -0,0 +1,11 @@
+--- Visualization-Library-master/CMakeLists.txt.orig	2026-01-05 14:47:57.797898038 +0100
++++ Visualization-Library-master/CMakeLists.txt	2026-01-05 14:48:15.249865375 +0100
+@@ -24,7 +24,7 @@
+ project(Visualization_Library_SDK-${VLVERSION_MAJOR}.${VLVERSION_MINOR})
+ 
+ # Must be called after project!
+-cmake_minimum_required(VERSION 2.6)
++cmake_minimum_required(VERSION 3.5)
+ 
+ ################################################################################
+ # Global Build Settings