Happy to see one of the NodeMCU gateway used @GFlater 
Nice article
By the way you can also do the same with the WeMos Gateway Lora RF95 shield, it’s the new one, smaller and cheaper code should works as is (may be just changing DIO mapping)
https://github.com/hallard/WeMos-Lora, these one are so tiny (thanks WeMos), I love them