Been using this to build a LoRa relay for the Bitchat app running on nrf52, it's actually very smooth for the most part. The only panics I seem to get are from the Nordic's SoftDevice, not for the ebasssy-rust code itself.
Bitchat is BLE right? Are you using a custom LoRa protocol or bridging to Meshtastic or something?
Sounds awesome, are you sharing this on GitHub?