KeyDb-Redis Support (A Multithreaded Fork of Redis That’s 5X Faster Than Redis)
KeyDB is a Faster, Drop-In Alternative to Redis
KeyDB maintains full compatibility with Redis modules, API and protocol.
Seamlessly drop in KeyDB and maintain full compatibility with your existing clients, scripts and configurations.
I assume because KeyDb is billed as a "drop-in" replacement that this would be low hanging fruit to get ServiceStack.Redis to support Redis-KeyDb