Nice work! I'm just glad to see more people in the space and there has been very little pressure on platforms to offer good webhooks, many integrations are pretty barebone and I hope you manage to help with that. We've also been building https://hookdeck.io which is tackling a related problem but for incoming webhooks instead of outgoing. Receiving webhooks at scale reliably requires a lot of work and well-thought-out infrastructure. I'm just about to do a Show HN of our own. I'll reach out to you!