Yeah this is a hard limit - but also in the TT2 world it multiplexes its pins between TT projects through a scan chain - this effectively means that update time

Yeah this is a hard limit - but also in the TT2 world it multiplexes its pins between TT projects through a scan chain - this effectively means that update times on pins are in the sub MHz domain - so anything you are building will be slow. Also there are only 8 input pins and 8 output ones (and 2 of those input pins are reset and clock, so really 6 input pins). As I understand it there will be a TT3 and the way pins happen will likely greatly change - more pins and faster everything