Technical discussions on these projects should happen in the form of "Issues" on GitHub, but I'm happy to discuss more generic topic here in this forum! ?
I've been busy with all kinds of other projects for quite a while, but I'm back to X16 development now. I'm currently in the process of changing the emulator and the ROM over to revision 2 of the actual board, which has changed in respect to memory and VIA layout.
As for pull requests, that's the next thing that I'll have a look at!