@ifixcoinops You mean, like, I²C relays or something? Or do you need more than can be addressed on an I²C bus?
The LEDs essentially form a long shift register rather than using addresses, so such a thing should be fairly straightforward to build. Just need wires for data, clock, power, and ground. I seem to recall they do something a little more clever than that so you can do away with the separate clock wire (long and short pulses I think? They have tight timing constraints IIRC), but that would be harder to build without specialized chips.