refactor folder structure

hosts/fw/pkgs/foundry-vtt/default.nix

@@ -0,0 +1,25 @@
+{ stdenv, lib, unzip }:
+
+stdenv.mkDerivation rec {
+  pname = "foundry-vtt";
+  version = "12.331";
+
+  src = ./FoundryVTT-12.331.zip;
+
+  nativeBuildInputs = [ unzip ];
+
+  unpackPhase = ''
+    unzip $src
+  '';
+
+  installPhase = ''
+    mkdir -p $out/share/foundry-vtt
+    cp -r . $out/share/foundry-vtt
+  '';
+
+  meta = with lib; {
+    description = "Tabletop simulator";
+    license = licenses.mit; # Adjust as needed
+    platforms = platforms.all;
+  };
+}