What is the determinism constraint? I noticed it mentioned several times in blog posts, but one of the use-cases mentioned here is for use with LLMs, which produce non-deterministic outputs.

Great question! A workflow should be deterministic: if called multiple times with the same inputs, it should invoke the same steps with the same inputs in the same order. But steps don't have be deterministic, they can invoke LLMs, third party APIs, or any other operation. Docs page on determinism: https://docs.dbos.dev/typescript/tutorials/workflow-tutorial...