I don't even see why it would have to be a full fork, could just be a drop-in replacement for whatever npm modules builds them into Windows installers/EXEs. But

I don't even see why it would have to be a full fork, could just be a drop-in replacement for whatever npm modules builds them into Windows installers/EXEs. But it would definitely make sense. It would be another great way for MS to emphasize cross-platform, because the Linux/Mac support would already be there and be left completely alone.