Need a second set of eyes on feasibility of a 3 way fireplace design

Other Hardware Home Automation
8

HomeSpan/HomeSpan: HomeKit Library for the Arduino-ESP32 (github.com)

Yurik72/ESPHap: ESP32/ESP8266 Arduino library for native Apple Homekit Accessory Protocol (HAP) (github.com)

Reads as if they'll work with an ESP32. One has even been updated to work with the ESP32S models. Shows that maintenance is still going on.