I am a just fan and rapid user. I am so enthusiastic about it I am an (unpaid) ambassador.

https://observablehq.com/ambassadors

I am trying to build a serverless compute layer on top of observable.

https://observablehq.com/@endpointservices/webcode

If I was shilling webcode.run then I would think a disclosure would be appropriate, but as I was just talking about how great Observable is as a literate programming env, I do not think I have anything to disclose.