I've built a serverless webhook dispatcher at my previous job and you can actually cover most of the scalability and resiliency requirements with a few AWS services. I think what is hard to build and the core value that your service provides is the management, governance, and monitoring around it. I would focus there as the main selling point. Kudos for launching it and good luck.

Hey thanks! If you want to run Diahook on it we can help.

We happen to be pretty good at infra, so a library / self hosted setup is usually preferable. This is partially because we prefer to monitor things ourselves, and partially because we don't want to send things like auth tokens through a third party service. We might be unique, though.

Thanks, I'll keep it in mind when we are ready! I especially like the easy postgres replication. :)

I'll reach out about Diahook, as we can also have a self-hosted offering, and I think it could still make sense for you. As you can still benefit from the rest of the offering, including client side libraries and management UI (will be fully customisable soon).