Hi @Gcain
the Embedded world with programing bare chips are completely different level than C# and databases 
.
So first of all - you should follow this setup: Decawave DWM3001CDK — Zephyr Project Documentation
as it is a part of the Zephyr already. You should no try to re-invent the wheel.
Then the next step should be to check this Zephyr examples: udk-sdk/app/006_ex_uwb at main · leapslabs/udk-sdk · GitHub
This github also contains full zephyr setup for the UDK kit: QM33120WDK2 - Qorvo
Cheers
JK