nix: apply shared home config to reserved aid

Signed-off-by: Ophestra <cat@gensokyo.uk>

nixos.nix

@@ -204,7 +204,8 @@ in
 
         users = foldlAttrs (
           acc: _: fid:
-          mergeAttrsList (
+          mkMerge [
+            (mergeAttrsList (
               # aid 0 is reserved
               imap1 (aid: app: {
                 ${getsubname fid aid} = mkMerge [
@@ -213,8 +214,10 @@ in
                   { home.packages = app.packages; }
                 ];
               }) cfg.apps
-          )
-          // acc
+            ))
+            { ${getsubname fid 0} = cfg.home-manager (getsubname fid 0) (getsubuid fid 0); }
+            acc
+          ]
         ) privPackages cfg.users;
       };