This is the fully-functional GNU Radio software-defined radio (SDR) implementation of a LoRa transceiver with all the necessary receiver components to operate correctly even at very low SNRs. This work has been conducted at the Telecommunication Circuits Laboratory, EPFL.
Why do you think that https://github.com/flengyel/RYLR998-LoRa is a good alternative to gr-lora_sdr