And here it is, I finally released the #PlayStation Datel cart clone repo.

https://codeberg.org/hkzlab/PS1_DatelCheatCart_Clone

It is a clone (of a clone) of a Datel cart I found at the fleamarket a few months ago. I wanted to see how it worked and make copies, and here is the result.
You'll be able to find links to appropriate PIO connectors in the repository.

If you like what I do and want to support, you can throw me a few euros using https://ko-fi.com/hkzlab, it helps with components and board production (when I can't get them sponsored).

Enjoy!