diff --git a/home/laozi/jeroboam.nix b/home/laozi/jeroboam.nix
index c65c82b..ccd201f 100644
--- a/home/laozi/jeroboam.nix
+++ b/home/laozi/jeroboam.nix
@@ -1,21 +1,25 @@
 { inputs, configVars, configLib, ... }:
+#map with prefix to refactor
+let
+  optionals = (configLib.mapPathsToPrefix { prefix = common/optional; list = [ /system /internet /comms /utilities /dev/foot.nix /office ];});
+in
 {
-  imports = builtins.concatLists [
+  imports = [
     # ======================= Hardware Configs ========================= #
     
     # ======================= Required Configs ========================= #
     common/core 
 
     # ================ Host-specific Optional Configs ================== #
-    (configLib.concatPathsWithPrefix {
-        prefix = "common/optional";
-        paths = [ system internet comms utilities dev/foot.nix office];
-      }
-    )
+    #(configLib.mapPathsToPrefix {
+    #    prefix = common/optional;
+    #    list = [ /system /internet /comms /utilities /dev/foot.nix /office];
+    #  }
+    #)
     
     # ============================= Themeing =========================== #
     inputs.nix-colors.homeManagerModules.default
- ];
+ ] ++ optionals;
 
   colorScheme = inputs.nix-colors.colorSchemes.atelier-dune;
   home = {
diff --git a/lib/default.nix b/lib/default.nix
index c0079e1..1a6ddbd 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -22,10 +22,9 @@
           (builtins.readDir path)
         )
       );
-  concatPathsWithPrefix = { prefix, path }:
-    builtins.concatLists 
-      [
-        (builtins.map (path: "${prefix}/${path}") paths)
-      ];
+
+  mapPathsToPrefix = { prefix, list }:
+    # Filter... sth like builtins.filter (path: builtins.pathExists path)
+    builtins.map (path: prefix + path) list;
 }