Yes, vanilla setup works just fine (I should have mentioned that already, my bad!). I also wiped all saves to test vanilla, then wiped all saves to test just the NPCMod, and then just SCore.
I've noticed, and that's a bit strange, since I'm pretty sure a large portion of hosted servers are all Linux-based. Or maybe they no longer are (I haven't gotten a hosted server for... too many years, because I just ended up building my own).