diff --git a/build_system_fixes.patch b/build_system_fixes.patch
new file mode 100644
index 0000000..6bce128
--- /dev/null
+++ b/build_system_fixes.patch
@@ -0,0 +1,86 @@
+--- source/build_linux_common.sh.orig	2025-10-30 18:28:15.000000000 +0100
++++ source/build_linux_common.sh	2026-01-05 14:38:13.999781422 +0100
+@@ -147,9 +147,9 @@
+ #export QT_CFLAGS="-DQT_STATIC -DQT3_SUPPORT -I$RQTDIR/include/Qt3Support -I$RQTDIR/include/QtCore -I$RQTDIR/include/QtGui -I$RQTDIR/include/QtNetwork -I$RQTDIR/include/QtSql -I$RQTDIR/include/QtOpenGL -Ibin/packages/qhttpserver-master/src"
+ #export QT_LDFLAGS="$RQTDIR/lib/libQt3Support.a $RQTDIR/lib/libQtSql.a $RQTDIR/lib/libQtOpenGL.a $RQTDIR/lib/libQtGui.a $RQTDIR/lib/libQtNetwork.a $RQTDIR/lib/libQtCore.a -lSM -lICE -lfreetype -lfontconfig -lXrender -lpng -lglib-2.0 -lgobject-2.0"
+ 
+-QT_INCLUDE_PATH=`$QMAKE -query QT_INSTALL_HEADERS`
+-export QT_UI_CFLAGS="-I $QT_INCLUDE_PATH/QtUiTools" # Doing this instead of using pkg since there are bugs in the dependencies of the pkg file in some versions of Qt. (same with the lib file below)
+-export QT_UI_LDFLAGS="`$QMAKE -query QT_INSTALL_LIBS`/libQt5UiTools.a"
++#QT_INCLUDE_PATH=`$QMAKE -query QT_INSTALL_HEADERS`
++#export QT_UI_CFLAGS="-I $QT_INCLUDE_PATH/QtUiTools" # Doing this instead of using pkg since there are bugs in the dependencies of the pkg file in some versions of Qt. (same with the lib file below)
++#export QT_UI_LDFLAGS="`$QMAKE -query QT_INSTALL_LIBS`/libQt5UiTools.a"
+ 
+ 
+ #One of these:
+--- source/configuration.sh.orig	2026-01-05 12:10:37.393648921 +0100
++++ source/configuration.sh	2026-01-05 14:41:36.490185173 +0100
+@@ -239,13 +239,14 @@
+         handle_failure "Not empty"
+     fi
+         
+-    A=$($PKGqt --libs-only-L Qt5Core | xargs)
+-    B="-L$($QMAKE -query QT_INSTALL_PREFIX)/lib"
+-    if [ "$A" != "$B" ] ; then
+-	handle_failure "$PKGqt and $QMAKE doesn't seem to point to the same Qt:\n" \
+-		       "PKG: \"$A\".\n" \
+-		       "${QMAKE}: \"$B\""
+-    fi
++   A=$($PKGqt --libs-only-L Qt5Core | xargs)
++   B="-L$($QMAKE -query QT_INSTALL_PREFIX)/lib"
++   if [ "$A" != "$B" ] ; then
++       printf "$PKGqt and $QMAKE don't seem to point to the same Qt.\nBut we don't give a shit on NixOS.\n"
++#	handle_failure "$PKGqt and $QMAKE doesn't seem to point to the same Qt:\n" \
++#		       "PKG: \"$A\".\n" \
++#		       "${QMAKE}: \"$B\""
++   fi
+ else
+     if ! is_set QMAKE_LIBS_ONLY_L_SHOULD_BE_EMPTY ; then
+         if [ "$($QMAKE -query QT_INSTALL_PREFIX)" != "/usr" ] ; then
+--- source/Makefile.Qt.orig	2026-01-05 12:12:34.852622893 +0100
++++ source/Makefile.Qt	2026-01-05 12:12:42.535293687 +0100
+@@ -305,7 +305,7 @@
+ 
+ WARNINGS_AS_ERRORS ?= 1
+ 
+-WERROR=""
++WERROR=
+ 
+ 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
+@@ -86,6 +86,7 @@
+ 	tar xvzf faust-2.81.2.tar.gz
+ 	mv faust-2.81.2 faust
+ 	cd faust
++	patch -p1 <../faust_llvm_21.patch
+ 	rm -fr libraries
+ 	tar xvzf ../faustlibraries_2024_01_05.tar.gz
+ 	mv faustlibraries libraries
+@@ -149,7 +150,7 @@
+ 
+ build_libpds() {
+ 
+-    NOWARNS="-Wno-return-mismatch -Wno-implicit-function-declaration -Wno-int-conversion -Wno-implicit-int"
++    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
diff --git a/faust_llvm_21.patch b/faust_llvm_21.patch
new file mode 100644
index 0000000..fb28378
--- /dev/null
+++ b/faust_llvm_21.patch
@@ -0,0 +1,30 @@
+--- faust/compiler/generator/llvm/llvm_dynamic_dsp_aux.cpp.orig	2025-06-30 14:55:47.000000000 +0200
++++ faust/compiler/generator/llvm/llvm_dynamic_dsp_aux.cpp	2026-01-12 05:09:26.084389475 +0100
+@@ -296,7 +296,7 @@
+ 
+     string triple, cpu;
+     splitTarget(fTarget, triple, cpu);
+-    fModule->setTargetTriple(triple);
++    fModule->setTargetTriple(llvm::Triple(triple));
+ 
+     builder.setMCPU((cpu == "") ? sys::getHostCPUName() : StringRef(cpu));
+     TargetOptions targetOptions;
+@@ -485,6 +485,6 @@
+     const string& object_code_path)
+ {
+     auto TargetTriple = sys::getDefaultTargetTriple();
+-    fModule->setTargetTriple(TargetTriple);
++    fModule->setTargetTriple(llvm::Triple(TargetTriple));
+     string Error;
+     auto   Target = TargetRegistry::lookupTarget(TargetTriple, Error);
+--- faust/compiler/generator/llvm/llvm_code_container.cpp.orig	2026-01-12 06:55:34.001904801 +0100
++++ faust/compiler/generator/llvm/llvm_code_container.cpp	2026-01-12 06:55:02.581093125 +0100
+@@ -90,7 +90,7 @@
+         fBuilder->setFastMathFlags(FMF);
+     }
+ 
+-    fModule->setTargetTriple(sys::getDefaultTargetTriple());
++    fModule->setTargetTriple(llvm::Triple(sys::getDefaultTargetTriple()));
+ }
+ 
+ LLVMCodeContainer::~LLVMCodeContainer()
\ No newline at end of file
diff --git a/qt_paths.patch b/qt_paths.patch
new file mode 100644
index 0000000..4daa689
--- /dev/null
+++ b/qt_paths.patch
@@ -0,0 +1,57 @@
+--- source/Qt/Qt_Error.cpp.orig	2026-01-11 12:48:06.113043420 +0100
++++ source/Qt/Qt_Error.cpp	2026-01-11 12:52:51.018629214 +0100
+@@ -154,13 +154,13 @@
+   
+ #if FOR_LINUX
+   bool faulty_installation = false;
+-  if(getenv("QT_QPA_PLATFORM_PLUGIN_PATH")==NULL){
+-    faulty_installation = true;
+-  }else{
+-    QCoreApplication::setLibraryPaths(QStringList());
+-  }
+-#else
+-  QCoreApplication::setLibraryPaths(QStringList());
++//   if(getenv("QT_QPA_PLATFORM_PLUGIN_PATH")==NULL){
++//     faulty_installation = true;
++//   }else{
++//     QCoreApplication::setLibraryPaths(QStringList());
++//   }
++// #else
++//   QCoreApplication::setLibraryPaths(QStringList());
+ #endif
+ 
+   QLocale::setDefault(QLocale::c());
+--- source/Qt/Qt_Main.cpp.orig	2026-01-11 15:02:21.914136144 +0100
++++ source/Qt/Qt_Main.cpp	2026-01-11 15:03:01.648750430 +0100
+@@ -4845,7 +4845,7 @@
+   qInstallMsgHandler(myMessageOutput);
+ #endif
+   
+-  QCoreApplication::setLibraryPaths(QStringList());  
++  // QCoreApplication::setLibraryPaths(QStringList());  
+ 
+   //QCoreApplication::setAttribute(Qt::AA_DontCheckOpenGLContextThreadAffinity);
+ 
+--- source/crashreporter/crashreporter.cpp.orig	2026-01-11 15:05:02.946438250 +0100
++++ source/crashreporter/crashreporter.cpp	2026-01-11 15:01:35.600732162 +0100
+@@ -599,13 +599,13 @@
+ 
+ #if FOR_LINUX
+   bool faulty_installation = false;
+-  if(getenv("QT_QPA_PLATFORM_PLUGIN_PATH")==NULL){
+-    faulty_installation = true;
+-  }else{
+-    QCoreApplication::setLibraryPaths(QStringList());
+-  }
+-#else
+-  QCoreApplication::setLibraryPaths(QStringList());
++//   if(getenv("QT_QPA_PLATFORM_PLUGIN_PATH")==NULL){
++//     faulty_installation = true;
++//   }else{
++//     QCoreApplication::setLibraryPaths(QStringList());
++//   }
++// #else
++//   QCoreApplication::setLibraryPaths(QStringList());
+ #endif
+ 
+   QLocale::setDefault(QLocale::c());
diff --git a/qwebengine_quirks.patch b/qwebengine_quirks.patch
new file mode 100644
index 0000000..8cc69d0
--- /dev/null
+++ b/qwebengine_quirks.patch
@@ -0,0 +1,17 @@
+--- source/api/api_gui.cpp.orig	2026-01-05 12:07:11.188431964 +0100
++++ source/api/api_gui.cpp	2026-01-05 12:08:49.721242485 +0100
+@@ -5591,7 +5591,14 @@
+ #else
+ 
+ #  if 1
++  
++#  if USE_QWEBENGINE
++  QDesktopServices::openUrl
++    (QUrl(std::get<0>(getAbsoluteUrl(QString::fromUtf8(charstringurl)))));
++#  else
+   QDesktopServices::openUrl(getUrl(charstringurl));
++#  endif
++  
+ #  else
+   JUCE_open_external_web_browser(geAbsolutetUrl(charstringurl).toUtf8().constData());
+ #  endif
diff --git a/radium.nix b/radium.nix
new file mode 100644
index 0000000..dada088
--- /dev/null
+++ b/radium.nix
@@ -0,0 +1,248 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, fetchurl
+, fetchzip
+, pkg-config
+, bash
+, coreutils
+, which
+, guile
+, cmake
+, doxygen
+, git
+, python311
+, qt5
+, libGLU
+, alsa-lib
+, jack2
+, libsamplerate
+, lrdf
+, libsndfile
+, ladspaH
+, ladspaPlugins
+, glib
+, calf
+, binutils-unwrapped
+, libiberty
+, tk-8_5
+, libogg
+, libvorbis
+, speex
+, fftw
+, fftwFloat
+, libxkbfile
+, util-macros
+, libxrandr
+, llvm
+, boost
+, openssl
+, ncurses
+, libxcb-util
+, gmp
+, mpfr
+, libmpc
+, libpthread-stubs
+, liblo
+, util-linux
+, xorg
+, writeShellScriptBin
+, useQwebengine ? true
+}:
+
+let
+  qt-web = if useQwebengine then qt5.qtwebengine else qt5.qtwebkit;
+  # Static binutils is required by Radium, specifically `libbfd.a'.
+  binutils-static = binutils-unwrapped.override { enableShared = false; };
+  
+  # Needs to be an older version.
+  xcbproto-1_13 = xorg.xcbproto.overrideAttrs (old: {
+    version = "1.13";
+    nativeBuildInputs = (old.nativeBuildInputs or []) ++ [ python311 ];
+
+    preConfigure = ''
+        export PYTHON=${python311}/bin/python3
+        export PATH=${python311}/bin:$PATH
+    '';
+    
+    src = fetchurl {
+      url = "https://xcb.freedesktop.org/dist/xcb-proto-1.13.tar.gz";
+      sha256 = "sha256-Bpjo9ZbkwNutcdPcdU2V6w7btC31Rk4PeCYhIW+jO6c=";
+    };
+  });
+in stdenv.mkDerivation rec {
+  pname = "radium";
+  version = "7.5.76";
+  
+  src = fetchFromGitHub {
+    owner = "kmatheussen";
+    repo = "radium";
+    rev = "${version}";
+    sha256 = "sha256-Eiil17cbCraXF3vY2LUy2B6eyfc1XD4JHJWZUfai+wc=";
+  };
+
+  vst2Sdk = fetchzip {
+    url = "https://web.archive.org/web/20161002042955if_/http://www.steinberg.net/sdk_downloads/vst_sdk2_4_rev2.zip";
+    sha256 = "sha256-6eDJYGfuVczOTaZNUYa/dLEoCzl6Ysi1I1NrxuN2mPQ=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+    bash
+    coreutils
+    which
+    guile
+    cmake
+    doxygen
+    git
+    
+    qt5.wrapQtAppsHook
+
+    (writeShellScriptBin "arch" "#!/usr/bin/env sh\nuname -m")
+  ];
+
+  buildInputs = [
+    qt5.qtbase
+    qt5.qttools
+    qt5.qtx11extras
+    qt-web
+
+    # In the order of the README.
+    libGLU
+    alsa-lib
+    jack2
+    libsamplerate
+    lrdf
+    libsndfile
+    ladspaH
+    glib
+    calf
+    binutils-static
+    libiberty
+    tk-8_5
+    libogg
+    libvorbis
+    speex
+    fftw
+    fftwFloat
+    libxkbfile
+    util-macros
+    libxrandr
+    llvm
+    boost
+    openssl
+    ncurses
+    libxcb-util
+    gmp
+    mpfr
+    libmpc
+    
+    xorg.libXinerama
+    xorg.libXau
+    xcbproto-1_13
+
+    libpthread-stubs
+    liblo
+    util-linux # For libuuid
+
+    ladspaPlugins
+  ];
+
+  patches = [
+    ./qt_paths.patch
+    ./qwebengine_quirks.patch
+    ./build_system_fixes.patch
+  ];
+  
+  postPatch = ''
+    patchShebangs .
+
+    substituteInPlace Makefile.Qt \
+      --replace-fail "/usr/bin/env" "${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++"
+
+    # This is so Faust can build with LLVM > 18.
+    cp ${./faust_llvm_21.patch} bin/packages/faust_llvm_21.patch
+  '';
+
+  configurePhase = ":";
+
+  env = {
+    # If false, build the demo version.
+    FULL_VERSION                  = true;
+    BUILDTYPE                     = "RELEASE";
+    USE_QWEBENGINE                = useQwebengine;
+    # Recommended in `configuration.sh'.
+    WARNINGS_AS_ERRORS            = false;
+    # If running on an AMD GPU, this is required.
+    INCLUDE_FAUSTDEV_BUT_NOT_LLVM = true;
+    
+    LLVM_PATH                     = "${llvm.dev}";
+    UIC                           = "${qt5.qtbase.dev}/bin/uic";
+    MOC                           = "${qt5.qtbase.dev}/bin/moc";
+                                  
+    QT_UI_CFLAGS                  =
+      "-I${qt5.qttools.dev}/include/QtUiTools";
+    RADIUM_BFD_LDFLAGS            =
+      "-L${binutils-static.lib}/lib -lbfd -lsframe";
+    RADIUM_VST2SDK_PATH           = "${vst2Sdk}";
+  };
+
+  qtWrapperArgs = [
+    # Does not launch with custom Qt paths otherwise.
+    "--set OVERRIDE_RADIUM_QPA 1"
+    
+    # This is what `run_radium_linux.sh' does.
+    "--prefix LD_LIBRARY_PATH : ${placeholder "out"}/opt/radium/packages/python27_install/lib"
+    "--prefix LD_LIBRARY_PATH : ${placeholder "out"}/opt/radium/packages/faust/build/lib"
+
+    # No access to `libqxcb.so' otherwise.
+    "--prefix QT_PLUGIN_PATH : ${qt5.qtbase.bin}/lib/qt-${qt5.qtbase.version}/plugins"
+    "--prefix QT_QPA_PLATFORM_PLUGIN_PATH : ${qt5.qtbase.bin}/lib/qt-${qt5.qtbase.version}/plugins/platforms"
+  ];
+  
+  buildPhase = ''
+    make packages
+    chmod +x ./build_linux.sh
+    ./build_linux.sh -j$(nproc)
+  '';
+  
+  installPhase = ''
+    mkdir -p $out/{opt,bin,share/applications,share/icons}
+
+    chmod +x ./install.sh
+    ./install.sh $out/opt
+
+    ln -s $out/opt/radium/radium_linux.bin $out/bin/radium
+
+    cp bin/graphics/radium_logo_256x256_colorized.png $out/share/icons/radium.png
+    cp $out/opt/radium/radium.desktop $out/share/applications/radium.desktop
+  '';
+  
+  preFixup = ''
+    rm -f $out/opt/radium/ladspa # broken relative symlink
+    ln -s ${ladspaPlugins}/lib/ladspa $out/opt/radium/ladspa # working
+  '';
+
+  postFixup = ''
+    wrapQtApp $out/opt/radium/radium_check_opengl
+    wrapQtApp $out/opt/radium/radium_check_jack_status
+    wrapQtApp $out/opt/radium/radium_plugin_scanner
+    wrapQtApp $out/opt/radium/radium_error_message
+    wrapQtApp $out/opt/radium/radium_progress_window
+  '';
+  
+  meta = with lib; {
+    description = "Radium – a graphical music editor / tracker (DAW)";
+    homepage = "https://users.notam02.no/~kjetism/radium/";
+    # Radium in itself is GPLv2. However, the ancient VST2 SDK is
+    # proprietary.
+    license = with licenses; [ gpl2 unfree ];
+    maintainers = with maintainers; [ eko5z ];
+    platforms = with platforms; gnu ++ linux ++ darwin;
+  };
+}