Picodata is a distributed, PostgreSQL-compatible database with a plugin model in Rust; plugins add Redis and Cassandra CQL wire protocol support.

Valkey is described as 'Open source (BSD) high-performance key/value datastore that supports a variety of workloads such as caching, message queues, and can act as a primary database. Valkey can run as either a standalone daemon or in a cluster, with options for replication and high' and is an app in the development category. There are more than 50 alternatives to Valkey for a variety of platforms, including Linux, Mac, Windows, Self-Hosted and Web-based apps. The best Valkey alternative is MongoDB. Other great apps like Valkey are Redis, CouchDB, DiceDB and Apache Cassandra.
Picodata is a distributed, PostgreSQL-compatible database with a plugin model in Rust; plugins add Redis and Cassandra CQL wire protocol support.

Serverless for Redis. Same underlying engine, better model. Focus on your code, not maintaining and scaling your Redis cluster. Pay only for what you use and not a cent more.