Add Colmena to manage systems, use better pathing for smallfetch, use better mountpoints and hostnames from Colema

modules/system/devices/networking/mycelium/default.nix

@@ -1,7 +1,5 @@
 { ... }:
 {
-  imports = [ ./ips ];
-
   services.mycelium = {
     enable = true;
     openFirewall = true;