{
  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
  outputs = {
    nixpkgs,
    self,
  }: {
    defaultPackage.x86_64-linux = with import nixpkgs {system = "x86_64-linux";}; let
      cdp8 =
        fetchFromGitHub
        {
          owner = "ComposersDesktop";
          repo = "CDP8";
          rev = "main";
          hash = "sha256-GG5RHgO5mwc24Rgq3lH+gan053vyZGPb1Gp8pOU5dG0=";
        };
    in
      stdenv.mkDerivation
      {
        name = "CDP 8.0.1";
        buildInputs = [clang cmake];
        buildCommand = ''
          tar fx ${cdp8}/libaaio/libaaio-0.3.2.tar.bz2
          libaaio-0.3.2/configure --prefix $out
          make install
          mkdir $out/src
          cp -r ${cdp8}/* $out/src
          chmod -R +w $out
          ln -s $out/include/* $out/src/dev/include
          sed -i '/option(USE_LOCAL_PORTAUDIO/c\option(USE_LOCAL_PORTAUDIO OFF)' $out/src/CMakeLists.txt
          sed -i 's/#*//' $out/src/dev/externals/CMakeLists.txt
          mkdir $out/src/build
          cd $out/src/build
          cmake -DAAIOLIB=$out/lib/libaaio.so -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ ..
          make
          mkdir $out/bin
          mv $out/src/NewRelease/* $out/bin
          rm -r $out/include $out/lib $out/man $out/src
        '';
      };
  };
}