@PJ_Glasso So close! I consider Nordic dual core low power device, PlatformIO, and Zephyr all potential positives!
However, one gotcha for our application is the need for US915 LoRaWAN. The nRF54L15 specifications I see for its radio are all 2.4 GHz, not 915MHz? Am I missing its support of 915MHz LoRa over the air?
I am open to your additional recommendation, with or without the RAK3172 as the LoRaWAN “modem” to implement a robust and effective WE2 application.