I've just bought a BitAxe Gamma, its on its way to me and should be here in a day or two.
Anyway, I'm wondering if I can set it up to mine locally to bitcoin core using GBT, or does it only support Stratum protocol and mining to a pool?
I admit I don't know much about BitAxe as of yet, so if anyone knows thanks for your help.
G.
I use Ocean's Datum Gateway set to solo local mining on my full node and point the Bitaxe to the IP of the node - All working fine but no block reward yet

Datum will work with Core but Ocean recommend Bitcoin Knots because of the ability to set your own mining template in finer detail
Settings:
Stratum host - Your node IP Eg: 192.168.1.234
Stratum Port: 23334
Stratum User: Your BTC Receive address EG bc1qqv7ymltch123456z0x68pyhfqh8kxtx3dmzv
Thanks,
Since I wrote the original post I've spoken with the ESP-Miner dev team and proposed the idea of mine to GBT.
Its something that they'll likely look at in future, but for now its not a supported feature.
I've set-up to mine to the usual stratum pools eusolo.ckpool.org and solo.stratum.braiins.com but I plan to set-up a local stratum pool in future using the CKPOOL code.