Where can I learn about Wine internals like these? I would love to debug why applications don't run well in wine, but all I ever find is an out of date wiki pag

Where can I learn about Wine internals like these? I would love to debug why applications don't run well in wine, but all I ever find is an out of date wiki page and no clear explanation for how to start debugging these situations. Maybe I'm not so good at finding the right resources?