Change:
<ins> { autoPatchelfHook , cairo , copyDesktopItems , dbus , fetchurl , fontconfig , freetype , glib , gtk3 , lib , libdrm , libGL , libkrb5 , libsecret , libsForQt5 , libunwind , libxkbcommon , makeDesktopItem , makeWrapper , openssl , stdenv , xorg , zlib }: let srcs = builtins.fromJSON (builtins.readFile ./srcs.json); in stdenv.mkDerivation rec { pname = "ida-free"; version = "8.4.240320"; src = fetchurl { inherit (srcs.${stdenv.system} or (throw "Unsupported system: ${stdenv.hostPlatform.system}")) urls sha256; }; icon = fetchurl { urls = [ "https://www.hex-rays.com/products/ida/news/8_1/images/icon_free.png" "https://web.archive.org/web/20221105181231if_/https://hex-rays.com/products/ida/news/8_1/images/icon_free.png" ]; sha256 = "sha256-widkv2VGh+eOauUK/6Sz/e2auCNFAsc8n9z0fdrSnW0="; }; desktopItem = makeDesktopItem { name = "ida-free"; exec = "ida64"; icon = icon; comment = meta.description; desktopName = "IDA Free"; genericName = "Interactive Disassembler"; categories = [ "Development" ]; }; nativeBuildInputs = [ makeWrapper copyDesktopItems autoPatchelfHook libsForQt5.wrapQtAppsHook ]; # We just get a runfile in $src, so no need to unpack it. dontUnpack = true; # Add everything to the RPATH, in case IDA decides to dlopen things. runtimeDependencies = [ cairo dbus fontconfig freetype glib gtk3 libdrm libGL libkrb5 libsecret libsForQt5.qtbase libunwind libxkbcommon openssl stdenv.cc.cc xorg.libICE xorg.libSM xorg.libX11 xorg.libXau xorg.libxcb xorg.libXext xorg.libXi xorg.libXrender xorg.xcbutilimage xorg.xcbutilkeysyms xorg.xcbutilrenderutil xorg.xcbutilwm zlib ]; buildInputs = runtimeDependencies; dontWrapQtApps = true; installPhase = '' runHook preInstall mkdir -p $out/bin $out/lib $out/opt # IDA depends on quite some things extracted by the runfile, so first extract everything # into $out/opt, then remove the unnecessary files and directories. IDADIR=$out/opt # Invoke the installer with the dynamic loader directly, avoiding the need # to copy it to fix permissions and patch the executable. $(cat $NIX_CC/nix-support/dynamic-linker) $src  --mode unattended --prefix $IDADIR --installpassword "" # Copy the exported libraries to the output. cp $IDADIR/libida64.so $out/lib # Some libraries come with the installer. addAutoPatchelfSearchPath $IDADIR for bb in ida64 assistant; do wrapProgram $IDADIR/$bb  --prefix QT_PLUGIN_PATH : $IDADIR/plugins/platforms ln -s $IDADIR/$bb $out/bin/$bb done runHook postInstall ''; meta = with lib; { description = "Freeware version of the world's smartest and most feature-full disassembler"; homepage = "https://hex-rays.com/ida-free/"; license = licenses.unfree; mainProgram = "ida64"; maintainers = with maintainers; [ msanft ]; platforms = [ "x86_64-linux" ]; # Right now, the installation script only supports Linux. sourceProvenance = with sourceTypes; [ binaryNativeCode ]; }; } </ins>

Discussion:
Project description <!-- Describe the project a little: --I'm looking to install (the free version of) IDA Pro decompiler software. Metadata homepage URL: https://hex- source URL: (n/a that I can find, see ) license: non-free platforms: they say "linux"
There's a PR which is waiting for feedback to be addressed, but otherwise testing it might expedite getting it merged: