We now have dists available for the N950 and N9 running Linux 4.16.4 from linux-stable. More info here (will write this up on the wiki soon). N9 is untested so I'm hoping for a guinea pig to try it out. The N9 port is mostly identical to the N950 port which has been tested. There is no virtual keyboard yet but Hildon is currently unusable anyway (other window managers work fine). I'm hoping someone else can help to get this working so I can focus on other stuff. USB networking works fine out-of-the-box (see the linked GitHub issue for info on how to set up the PC side in Linux).