Before, if you wanted your system to listen to events in Linear and GitHub, you'd have to build webhook integrations for those two systems. Your service provides some URL that these external systems can send API calls to, in the very specific format for each platform, and you process that payload. Want to also support GitLab? You can re-use some of what you've built, but GitHub and GitLab webhook events aren't structured the same, so you'd have to build a new integration, probably on a separate URL, to listen to these new events. Recently, however, you might decide to approach...