Ask HN: Does anyone use AWS Smithy outside of AWS?

I'm impressed with Smithy (https://smithy.io) which is used to generate SDK's for most/all of the AWS services in several languages. They're also starting down the path of generating server-side code from the IDL. See: https://smithy.io/2.0/ts-ssdk/index.html

I've seen the code generation code and it looks daunting. I'm more inclined to use the Smithy > OpenAPI spec > swagger route.

Is anyone using Smithy outside of AWS?