VST2 SDK already included in nixpkgs

package.nix

@@ -21,6 +21,7 @@
 , libsndfile
 , ladspaH
 , ladspaPlugins
+, vst2-sdk
 , glib
 , calf
 , binutils-unwrapped
@@ -53,10 +54,8 @@
 
 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.
+  binutils-static = binutils-unwrapped.override { enableShared = false; };  
+
   xcbproto-1_13 = xorg.xcbproto.overrideAttrs (old: {
     version = "1.13";
     nativeBuildInputs = (old.nativeBuildInputs or []) ++ [ python311 ];
@@ -82,11 +81,6 @@ in stdenv.mkDerivation rec {
     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
@@ -147,15 +141,13 @@ in stdenv.mkDerivation rec {
     util-linux # For libuuid
 
     ladspaPlugins
+    vst2-sdk
   ];
 
   patches = [
     ./qt_paths.patch
     ./qwebengine_quirks.patch
     ./build_system_fixes.patch
-    # 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 = ''
@@ -164,17 +156,12 @@ in stdenv.mkDerivation rec {
     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
-    # 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
   '';
 
@@ -198,7 +185,7 @@ in stdenv.mkDerivation rec {
       "-I${qt5.qttools.dev}/include/QtUiTools";
     RADIUM_BFD_LDFLAGS            =
       "-L${binutils-static.lib}/lib -lbfd -lsframe";
-    RADIUM_VST2SDK_PATH           = "${vst2Sdk}";
+    RADIUM_VST2SDK_PATH           = "${vst2-sdk}";
   };
 
   qtWrapperArgs = [
@@ -248,9 +235,7 @@ in stdenv.mkDerivation rec {
   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 ];
+    license = with licenses; [ gpl2 ];
     maintainers = with maintainers; [ eko5z ];
     platforms = with platforms; gnu ++ linux ++ darwin;
   };