The Super Notendo is now fully universal you just need to go through the effort of making 4 very, very small USB cables.
I got some blank male and female ports and cut wires that were just long enough. It’s cramped but it works!
Both versions here:
Nice job!
Just an idea: I bet you could probably squeeze in a disassembled usb hub to make it easier to get those front ports.
Something like https://a.aliexpress.com/_mNBftvQ
Oh shit that’s a much better idea than what i did!