adding vst nix packages

packages/tal/j8.nix

@@ -0,0 +1,45 @@
+{ stdenv, pkgs, fetchurl, lib, unzip, autoPatchelfHook, makeWrapper, ... }:
+
+stdenv.mkDerivation rec {
+  pname = "tal-j8";
+  version = "latest";
+  src = fetchurl {
+    url = "https://tal-software.com/downloads/plugins/TAL-J-8_64_linux.zip";
+    sha256 = "sha256-Z1ASlR4aqUh0yFzW0sOJLocXk1RPOnGmKCri2n/qcWc=";
+  };
+  nativeBuildInputs = [ makeWrapper unzip autoPatchelfHook ];
+  buildInputs = with pkgs; [
+    freetype
+    fontconfig
+    alsa-lib
+    pipewire
+    stdenv.cc.cc.lib
+  ];
+
+  unpackPhase = ''
+    unzip $src
+  '';
+
+  installPhase = ''
+    mkdir -p $out/lib/vst $out/lib/vst3 $out/lib/clap
+    cp -r TAL-J-8/TAL-J-8.clap $out/lib/clap
+    cp -r TAL-J-8/libTAL-J-8.so $out/lib/vst
+    cp -r TAL-J-8/TAL-J-8.vst3 $out/lib/vst3
+  '';
+
+  postFixup = ''
+    for file in \
+      $out/lib/clap/TAL-J-8.clap \
+      $out/lib/vst/libTAL-J-8.so \
+      $out/lib/vst3/TAL-J-8.vst3/Contents/x86_64-linux/TAL-J-8.so
+    do
+      patchelf --set-rpath "${lib.makeLibraryPath buildInputs}" $file
+    done
+  '';
+
+  meta = with lib; {
+    homepage = "https://tal-software.com/products/tal-j-8";
+    description = "TAL-J-8";
+    platforms = platforms.linux;
+  };
+}