diff --git a/custom_components/bahmcloud_store/__init__.py b/custom_components/bahmcloud_store/__init__.py
index 11791e8..292a93e 100644
--- a/custom_components/bahmcloud_store/__init__.py
+++ b/custom_components/bahmcloud_store/__init__.py
@@ -7,9 +7,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.const import Platform
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.event import async_track_time_interval
-
-# Built-in panel registration (keeps HA header/sidebar on mobile)
-from homeassistant.components.frontend import async_register_built_in_panel
+from homeassistant.components.panel_custom import async_register_panel
 
 from .core import BCSCore, BCSConfig, BCSError
 
@@ -28,35 +26,24 @@ async def async_setup(hass: HomeAssistant, config: dict) -> bool:
     core = BCSCore(hass, BCSConfig(store_url=store_url))
     hass.data[DOMAIN] = core
 
-    # Register HTTP views (static assets + API)
     await core.register_http_views()
 
-    # IMPORTANT:
-    # In HA 2026.1.x, async_register_built_in_panel does not accept module_url.
-    # The supported way is to use _panel_custom with js_url.
-    # This keeps the HA chrome (header/sidebar) on mobile.
-    async_register_built_in_panel(
+    await async_register_panel(
         hass,
-        component_name="custom",
+        frontend_url_path="bahmcloud-store",
+        webcomponent_name="bahmcloud-store-panel",
+        module_url="/api/bahmcloud_store_static/panel.js?v=32",
         sidebar_title="Bahmcloud Store",
         sidebar_icon="mdi:store",
-        frontend_url_path="bahmcloud-store",
         require_admin=True,
-        config={
-            "_panel_custom": {
-                "name": "bahmcloud-store-panel",
-                "js_url": "/api/bahmcloud_store_static/panel.js?v=33",
-            }
-        },
+        config={},
     )
 
-    # Initial refresh (index + custom repos + enrichment)
     try:
         await core.refresh()
     except BCSError as e:
         _LOGGER.error("Initial refresh failed: %s", e)
 
-    # Periodic refresh (data only; no auto installs)
     async def periodic(_now) -> None:
         try:
             await core.refresh()
@@ -67,7 +54,5 @@ async def async_setup(hass: HomeAssistant, config: dict) -> bool:
     interval = timedelta(seconds=int(core.refresh_seconds or 300))
     async_track_time_interval(hass, periodic, interval)
 
-    # Update platform is still a stub in 0.3.x
     await async_load_platform(hass, Platform.UPDATE, DOMAIN, {}, config)
-
     return True