To use the Leopard 32-bit Intel and PPC Godot templates...

1. Export a *.pck file using Godot v3.6; this can be either from what
   you have installed on Mac OS X Leopard or from a newer operating
   system; the operating system used to do this does not matter as PCK 
   files are not executable; they only contain resources in a similar 
   manner to that of a Doom WAD or a Quake PAK file.
   
1. Extract one of the template-related archives to reveal a Godot 
   Template app.

2. Name the app whatever you want.

3. Right-click the app and select the option to show the app's contents.

4. Navigate to "NameOfGame.app/Contents/MacOS" and place the exported
   PCK file so as to be "NameOfGame.app/Contents/MacOS/godot.pck"; the
   'godot' binary and the PCK file have to have the same name; do not
   remove the "pck" file extension.

Optional...

5. Replace the icon file within the app with your own.

6. You may also want to replace certain parts of the 
   "NameOfGame.app/Contents/Info.plist" file.