Use device registry

custom_components/browser_mod/config_flow.py

@@ -0,0 +1,10 @@
+from homeassistant import config_entries
+
+from .const import DOMAIN
+
+class BrowserModConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
+
+    VERSION = 1
+
+    async def async_step_import(self, import_info):
+        return self.async_create_entry(title="Browser Mod", data={})