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> Postgres/ClickHouse/NATS

Maybe throw in a dedicated key-value store like Redis or Valkey.

Oh and maybe something S3 compatible like MinIO, Garage or SeaweedFS for storing bunches of binary data.

With all of that, honestly it should cover most of the common workloads out there! Of course, depends on how specialized vs generic you like your software to be.

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NATS does KV pretty well now (didn't have expiration till earlier this year)

Nats is getting there, but not yet.

Redis is still much more powerful: lists, sorted sets and bazillion of other data structures

NATS has a bit more in terms of durability guarantees so I have found that it hits more use cases. I'm trying to strike a bit of a balance between "use the exact right tool for the job, even if that means you have 25 different services" and "just use Postgres". I do think Postgres/Redis/ClickHouse is probably fine as well but durable streaming would be hard to give up.

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