Yeah, this is the next step. I first wanted to understand if this gets any traction. I think I will provide a dockerized version for the server part that you can just run with a simple command and maybe some interface to create api keys and distribute them to your users.

Fair enough from a business standpoint, but seeing as there are massive privacy/security risks involved in exposing your data to an opaque service, the open source component is probably a non-optional aspect of the value prop.

how come? just because it's open source doesn't mean that they run that exact binary on their servers. ngrok does pretty well without open sourcing.

The locus of trust moves, if you have the source, and trust is a factor for you, because you can simply self-host and know what you're running.

fwiw, ngrok started as open source

We're using pgrok for that in our organization. A small EC2 instance serves as the public endpoint.