ESP32 smart-device firmware as a library: Wi-Fi pairing over BLE or soft-AP, TCP/UDP local control, AWS IoT MQTT with per-device certificate provisioning, HTTPS OTA. Call cything_begin() and implement two command hooks — see CyThingEsp32.h.
This component for ESP-IDF builds the open-source software PicoRuby into a static library, allowing you to link it and run PicoRuby seamlessly on their microcontroller boards.