If the code hasn't been touched in this long, its probably release-worthy.

src/platform/arduino/OTA.h

@@ -0,0 +1,14 @@
+#include <ArduinoOTA.h>
+#include <Figments.h>
+
+class ArduinoOTAUpdater : public BufferedInputSource {
+  public:
+    ArduinoOTAUpdater();
+    void loop() override;
+    void handleEvent(const InputEvent& evt) override;
+
+  private:
+    bool m_online = false;
+    static void s_onStart();
+    static void s_onProgress(unsigned int progress, unsigned int total);
+};