There was an analysis done on the Redis API in Scylla back in 2019 (https://siddharthc.medium.com/redis-on-nvme-with-scylladb-5e...). The implementation, while still experimental, has come a long way since. I would be very interested to hear additional feedback from Redis users.
Wow. Scylla does Cassandra, DynamoDB, and Redis. Wonder what will be next.