diff --git a/dzgui/controllers/emitter.py b/dzgui/controllers/emitter.py
index 1331160..17a59d0 100644
--- a/dzgui/controllers/emitter.py
+++ b/dzgui/controllers/emitter.py
@@ -156,7 +156,7 @@ class Emitter(GObject.GObject):
         pass
 
     @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(object, str, bool))
-    def custom_mods_loaded(self, store: "FastInsertListStore", folder: str, has_duplicates: bool) -> None:
+    def custom_mods_loaded(self, store: "FastInsertListStore", folder: str) -> None:
         pass
 
     @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(str, bool))
diff --git a/dzgui/managers/offline.py b/dzgui/managers/offline.py
index 952b56f..e6584b9 100644
--- a/dzgui/managers/offline.py
+++ b/dzgui/managers/offline.py
@@ -54,16 +54,7 @@ class OfflineManager:
         store = ModelFactory().make_mod_store()
         store.extend(mods)
 
-        has_duplicates = False
-        seen = set()
-        for row in store:
-            mod_id = row[1]
-            if mod_id in seen:
-                row[-1]=True
-                has_duplicates = True
-            seen.add(mod_id)
-
-        func = StoredFunc(lambda: self.emitter.emit("custom_mods_loaded", store, folder, has_duplicates))
+        func = StoredFunc(lambda: self.emitter.emit("custom_mods_loaded", store, folder))
         self.thread_man.set_cleanup_func(func)
 
     def setup(
diff --git a/dzgui/views/pages/offline.py b/dzgui/views/pages/offline.py
index e3c448b..05b48a7 100644
--- a/dzgui/views/pages/offline.py
+++ b/dzgui/views/pages/offline.py
@@ -117,6 +117,7 @@ class ModFrame(HeadingFrame):
         sel.connect("changed", self._on_selection_changed)
 
         # TODO: inherit icons from warnings area in preconnect dialog
+        # TODO: strings
         self.error_label = Gtk.Label(label="No mods found", halign=Gtk.Align.START, margin_start=10, margin_bottom=5)
         self.vbox.pack_end(self.error_label, expand=True, fill=True, padding=3)
 
@@ -209,19 +210,12 @@ class CustomModFrame(ModFrame):
         emitter: "Emitter",
         store: "FastInsertListStore",
         folder: str,
-        has_duplicates: bool,
     ) -> None:
         if len(store) == 0:
             self.hide_tree()
         else:
             self.present_tree()
 
-        if has_duplicates:
-            # TODO: block button access
-            # TODO: update error message
-            # cf hide_tree
-            pass
-
     def _on_custom_button_clicked(self, button: Gtk.Button) -> None:
         local_mods = self.get_mods()
         self.parent.offline_man.get_custom_mods(local_mods)
@@ -373,11 +367,12 @@ class OfflineLoader(Gtk.Box):
         self.controller.open_page(NotebookPage.MODS)
 
     def _on_ok_clicked(self, button: Gtk.Button) -> None:
+        # TODO: grab all values in one pass
         # appid = self.radio_frame.get_appid()
         # mission = self.mission_frame.get_mission()
         # local_mods = self.local_frame.get_mods()
         # custom_mods = self.custom_frame.get_mods()
         # cf. api.mods._hash(uid, use_custom=True)
-        # TODO: dynamically calculate new symlink hashes
+        # TODO: set up all symlinks prior to launch, including custom ones
         # self.offline_man.setup(appid, mission, local_mods, custom_mods)
         pass