diff --git a/lib/Figments/Input.h b/lib/Figments/Input.h
index 30b6e36..982c9f7 100644
--- a/lib/Figments/Input.h
+++ b/lib/Figments/Input.h
@@ -37,8 +37,8 @@ struct Variant {
     CRGB asRGB() const;
     int asInt() const;
     bool asBool() const;
-    template<typename T> T* as() const {
-        return (T*)m_value.asPointer;
+    template<typename T> const T& as() const {
+        return *static_cast<const T*>(m_value.asPointer);
     }
 
 private:
@@ -183,6 +183,8 @@ class ConfigTaskMixin : public virtual Loopable {
       }
     }
 
+    void loop() override {}
+
     virtual void handleConfigChange(const InputEvent& evt) {}
 };
 
diff --git a/src/platform/arduino/MQTTTelemetry.cpp b/src/platform/arduino/MQTTTelemetry.cpp
index 8a317ae..b0acfce 100644
--- a/src/platform/arduino/MQTTTelemetry.cpp
+++ b/src/platform/arduino/MQTTTelemetry.cpp
@@ -201,8 +201,8 @@ MQTTTelemetry::handleEventOnline(const InputEvent& evt)
 void
 MQTTTelemetry::handleConfigChange(const InputEvent& event)
 {
-  const JsonObject* obj = static_cast<JsonObject*>(event.value().asPointer());
-  strncpy(m_hostBuf, obj["mqtt.ip"].c_str(), sizeof(m_hostBuf));
+  const JsonObject& obj = event.as<JsonObject>();
+  strncpy(m_hostBuf, obj["mqtt.ip"].as<JsonString>().c_str(), sizeof(m_hostBuf));
   m_mqtt.disconnect();
 }
 
@@ -217,7 +217,7 @@ MQTTTelemetry::loop()
 void
 MQTTTelemetry::handleEvent(const InputEvent& evt)
 {
-  OnlineTaskMixin::handle(evt);
+  OnlineTaskMixin::handleEvent(evt);
   ConfigTaskMixin::handleEvent(evt);
 }
 
diff --git a/src/platform/arduino/MQTTTelemetry.h b/src/platform/arduino/MQTTTelemetry.h
index e257ff4..fe1541b 100644
--- a/src/platform/arduino/MQTTTelemetry.h
+++ b/src/platform/arduino/MQTTTelemetry.h
@@ -67,7 +67,7 @@ class MQTTTelemetry : public BufferedInputSource, OnlineTaskMixin, ConfigTaskMix
     bool m_isOn = true;
     static char s_topicBuf[128];
     static char s_payloadBuf[512];
-    static char s_hostBuf[15];
+    char m_hostBuf[15];
 
     void publishDoc(const char* topic);
     void publishDoc(const char* topic, bool retain);