Griffo on Nostr: Is there a platform where I can offer a service or sell downloadable files for ...

Is there a platform where I can offer a service or sell downloadable files for Bitcoin?

An example that I'm thinking for me, as a structural engineer is to offer a few services like a review of a project for a second opinion. Or sell a modular project that can be replicated.

If it doesn't exist, is it possible to do?

#grownostr