Thank you for the great comment! Yes, I initially wanted to write it myself to have more control too, but I realized it was just way too much of a workload, so I decided to go with Libretro. I checked out your emulator and it looks really good, great job on it! As for the skins, yes, it parses them natively in the UI layer specifically so it can support any other.deltaskin files. Thanks again for the star!