Classic SNES USB guide?

I found a couple old controllers for the Super Nintendo and would love to use it on my computer. I’m just getting into modding and was wondering if anyone knew how to do these kind of hobby projects. :yes:

Here’s the link to the site: http://www.raphnet.net/electronique/snes_nes_usb/index_en.php

and the schematic is here: http://www.raphnet.net/electronique/snes_nes_usb/sch-revD.png

Components are located in the first link. :ba: