fix(lib relativeToRoot): revert to old pattern, pay attention to proper path formats

lib/default.nix

@@ -1,5 +1,7 @@
 { lib, ... }:
 {
+  # use path relative to the root of the project
+  relativeToRoot = lib.path.append ../.;
   scanPaths = path:
     builtins.map
       (f: (path + "/${f}"))
@@ -19,4 +21,3 @@
           )
           (builtins.readDir path)));
 }
-

systems/jeroboam/default.nix

@@ -20,7 +20,7 @@
 
     #################### Disk Layout ####################
     inputs.disko.nixosModules.disko
-    (configLib.relativeToRoot "systems/common/disks/jeroboam.nix")
+    ( configLib.relativeToRoot "systems/common/disks/jeroboam.nix")
     {
       _module.args = {
         disk = "/dev/nvme0n1";
@@ -29,7 +29,7 @@
       };
     }
   ]
-  ++ (map (x: "${self}/" + x) [
+  ++ (map configLib.relativeToRoot [
     # = Required Configs ####################
         "systems/common/core"
 
@@ -46,7 +46,6 @@
     # Desktop
         #"systems/common/optional/services/greetd.nix" # display manager
         #"systems/common/optional/hyprland.nix" # window manager
-        ""
     #################### Users to Create ####################
         #"systems/common/users/zhuangzi"
         "systems/common/users/laozi"