hosts: remove cr, move systems up directory

hosts/default.nix

@@ -16,10 +16,10 @@
       concatLists [
         # Derive host specific module path from the first argument of the
         # function. Should be a string, obviously.
-        (singleton ./cr/${hostname}/default.nix)
+        (singleton ./${hostname}/default.nix)
 
         # Recursively import all module trees (i.e. directories with a `module.nix`)
-        # for given moduleTree directories, and in addition, roles.
+        # for given moduleTree directories
         (mkModuleTree' {path = ../modules;})
       ]
     );

hosts/hermit/configuration.nix

@@ -17,6 +17,7 @@
     fstrim.enable = lib.mkDefault true;
     thermald.enable = true;
     auto-cpufreq.enable = true;
+    printing.enable = true;
   };
 
   modules = {