diff --git a/lazy_player/__init__.py b/lazy_player/__init__.py
index 027fb62..c1ce128 100644
--- a/lazy_player/__init__.py
+++ b/lazy_player/__init__.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
-from typing import Any
+import os
+from typing import Any, cast
 
 import gi
 
@@ -20,12 +21,28 @@ class MainWindow(Gtk.ApplicationWindow):
         main_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
         main_box.set_homogeneous(True)  # Make both halves equal size
 
-        # Left half
+        # Left half - File list
         left_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
-        left_box.set_valign(Gtk.Align.CENTER)
-        left_box.set_halign(Gtk.Align.CENTER)
-        left_label = Gtk.Label(label="Left Side")
-        left_box.append(left_label)
+
+        # Create list store and view
+        list_store = Gtk.StringList()
+        list_view = Gtk.ListView()
+        list_view.set_model(Gtk.SingleSelection.new(list_store))
+        list_view.set_vexpand(True)
+
+        # Factory for list items
+        factory = Gtk.SignalListItemFactory()
+        factory.connect("setup", self._setup_list_item)
+        factory.connect("bind", self._bind_list_item)
+        list_view.set_factory(factory)
+
+        # Populate the list store
+        self._populate_file_list(list_store)
+
+        # Add list view to a scrolled window
+        scrolled = Gtk.ScrolledWindow()
+        scrolled.set_child(list_view)
+        left_box.append(scrolled)
 
         # Right half
         right_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
@@ -40,6 +57,39 @@ class MainWindow(Gtk.ApplicationWindow):
 
         self.set_child(main_box)
 
+    def _setup_list_item(self, factory: Gtk.SignalListItemFactory, list_item: Gtk.ListItem) -> None:
+        label = Gtk.Label()
+        label.set_halign(Gtk.Align.START)
+        list_item.set_child(label)
+
+    def _bind_list_item(self, factory: Gtk.SignalListItemFactory, list_item: Gtk.ListItem) -> None:
+        label = cast(Gtk.Label, list_item.get_child())
+        item = cast(Gtk.StringObject, list_item.get_item())
+        label.set_text(item.get_string())
+
+    def _populate_file_list(self, list_store: Gtk.StringList) -> None:
+        # TODO: Implement proper version sort (strverscmp equivalent)
+
+        directories: list[str] = []
+        files: list[str] = []
+
+        with os.scandir(".") as it:
+            for entry in it:
+                if entry.name == ".." or not entry.name.startswith("."):
+                    if entry.is_dir():
+                        directories.append(entry.name)
+                    else:
+                        files.append(entry.name)
+
+        directories.sort()
+        files.sort()
+
+        for name in directories:
+            list_store.append(f"{name}/")
+
+        for name in files:
+            list_store.append(name)
+
 
 class App(Gtk.Application):
     def __init__(self):