diff --git a/dzgui/util/flatpak.py b/dzgui/util/flatpak.py
new file mode 100644
index 0000000..21cd062
--- /dev/null
+++ b/dzgui/util/flatpak.py
@@ -0,0 +1,29 @@
+import logging
+import subprocess
+
+from dzgui.const.constants import APP_NAME, FLATPAK_APPID, GTK_APP_ID
+
+logger = logging.getLogger(APP_NAME)
+
+
+def apply_overrides(xdg: dict[str, str]) -> None:
+    try:
+        # NOTE: D-Bus registration required for sandbox
+        args = [
+            "flatpak",
+            "--user",
+            "override" f"--own-name={GTK_APP_ID}",
+            FLATPAK_APPID,
+        ]
+        subprocess.run([*args], capture_output=True)
+
+        for path in xdg.values():
+            args = [
+                "flatpak",
+                "--user",
+                "override" f"--filesystem={path}",
+                FLATPAK_APPID,
+            ]
+            subprocess.run([*args], capture_output=True)
+    except Exception as e:
+        logger.critical(e)