Use initial_value for fw_url

It should be available together with the component

prebuilt/nspanel_esphome_prebuilt.yaml

@@ -32,8 +32,8 @@ api:
         url: string
       then:
         - ota_http.flash:
-            md5_url: !lambda return id(fw_url).state + ".md5";
-            url: !lambda return id(fw_url).state;
+            md5_url: !lambda return fw_url->state + ".md5";
+            url: !lambda return fw_url->state;
         - lambda: |-
             static const char *const TAG = "prebuilt.button.bt_firmware_update";
             ESP_LOGE(TAG, "Firmware update failed!");
@@ -50,8 +50,8 @@ button:
     on_press:
       then:
         - ota_http.flash:
-            md5_url: !lambda return id(fw_url).state + ".md5";
-            url: !lambda return id(fw_url).state;
+            md5_url: !lambda return fw_url->state + ".md5";
+            url: !lambda return fw_url->state;
         - lambda: |-
             static const char *const TAG = "prebuilt.button.bt_firmware_update";
             ESP_LOGE(TAG, "Firmware update failed!");
@@ -70,12 +70,6 @@ esphome:
   project:
     name: esphome.NSPanel_HA_Blueprint
     version: "${version}"
-  on_boot:
-    - priority: 602.0
-      then:
-        - text.set:
-            id: fw_url
-            value: "https://raw.githubusercontent.com/Blackymas/NSPanel_HA_Blueprint/main/prebuilt/nspanel_esphome_prebuilt.bin"
   platformio_options:
     build_flags:
       - -D NSPANEL_HA_BLUEPRINT_PREBUILT
@@ -111,6 +105,16 @@ text:
     icon: mdi:cloud-download
     mode: text
     optimistic: true
+    entity_category: config
+    internal: false
+    update_interval: never
+    restore_value: true
+    initial_value: "https://raw.githubusercontent.com/Blackymas/NSPanel_HA_Blueprint/main/prebuilt/nspanel_esphome_prebuilt.bin"
+    on_value:
+      then:
+        - lambda: |-
+            ESP_LOGD("text.fw_url", "New Firmware URL set: %s", x.c_str());
+
 
 wifi:
   networks: !remove

prebuilt/wall_display.yaml

@@ -28,10 +28,8 @@ esphome:
   platformio_options:
     build_flags:
       - -D NSPANEL_HA_BLUEPRINT_PREBUILT_WALL_DISPLAY
-  on_boot:
-    - priority: 602.0
-      then:
-        - text.set:
-            id: fw_url
-            value: "https://raw.githubusercontent.com/Blackymas/NSPanel_HA_Blueprint/main/prebuilt/wall_display.bin"
+
+text:
+  - id: !extend fw_url
+    initial_value: "https://raw.githubusercontent.com/Blackymas/NSPanel_HA_Blueprint/main/prebuilt/wall_display.bin"
 ...