init grayjay with fhs

packages/grayjay/default.nix

@@ -0,0 +1,112 @@
+# https://github.com/futo-org/Grayjay.Desktop/issues/63#issuecomment-2564617529
+{
+  stdenv,
+  lib,
+  fetchurl,
+  buildFHSEnv,
+  writeShellScript,
+
+  unzip,
+
+  libz,
+  icu,
+  openssl,
+
+  xorg,
+
+  gtk3,
+  glib,
+  nss,
+  nspr,
+  dbus,
+  atk,
+  cups,
+  libdrm,
+  expat,
+  libxkbcommon,
+  pango,
+  cairo,
+  udev,
+  alsa-lib,
+  mesa,
+  libGL,
+  libsecret,
+}:
+
+let
+  grayjay-app = stdenv.mkDerivation {
+    pname = "grayjay-app";
+    version = "0.1.0";
+
+    src = fetchurl {
+      url = "https://updater.grayjay.app/Apps/Grayjay.Desktop/Grayjay.Desktop-linux-x64.zip";
+      hash = "sha256-MU4AJVKkE80/E9ikq9RKIL9Z3npwmC2N0PHybd++jQM=";
+    };
+
+    buildInputs = [
+      unzip
+    ];
+
+    sourceRoot = ".";
+
+    dontUnpack = true;
+    dontConfigure = true;
+    dontBuild = true;
+
+    installPhase = ''
+      mkdir -p $out/bin $out/share
+      unzip -d $out $src && f=($out/*) && mv $out/*/* $out
+      rm $out/Portable
+    '';
+
+    meta = with lib; {
+      homepage = "https://grayjay.app/desktop/";
+      description = "Grayjay Desktop";
+      platforms = platforms.linux;
+    };
+  };
+in
+buildFHSEnv {
+  name = "grayjay";
+  targetPkgs = pkgs: [
+    grayjay-app
+
+    libz
+    icu
+    openssl # For updater
+
+    xorg.libX11
+    xorg.libXcomposite
+    xorg.libXdamage
+    xorg.libXext
+    xorg.libXfixes
+    xorg.libXrandr
+    xorg.libxcb
+
+    gtk3
+    glib
+    nss
+    nspr
+    dbus
+    atk
+    cups
+    libdrm
+    expat
+    libxkbcommon
+    pango
+    cairo
+    udev
+    alsa-lib
+    mesa
+    libGL
+    libsecret
+  ];
+
+  multiPkgs = pkgs: [ libGL ];
+  runScript = writeShellScript "grayjay-script" ''
+    mkdir -p ~/.local/share/Grayjay
+    cp -r ${grayjay-app}/* ~/.local/share/Grayjay/
+    cd ~/.local/share/Grayjay
+    ./Grayjay
+  '';
+}