Hi. Thanks! Some of our contributors have added support for some of the off-the-shelf TTGO ESP32 + LoRa boards but I'm not sure we're ready to call it stable. I'll ping them to come here and answer your question. The previous ESP8266-based solution was just a bit under-powered for serving up the vector tile maps and we're not supporting that anymore.

We're also about to finalize some new custom boards with ESP32 and two LoRa modules (meshing on a single channel kinda sucks) and will make an announcement on our site as soon as that's ready to try out.