Sending new post notifications with Resend (opens in new tab)

Original post: Sending new post notifications with Resend Series: Part of How this blog was built — documenting every decision that shaped this site. When a new post goes live, I want subscribers to know about it. The mailing list runs through Resend — subscribers are stored in a Resend Segment, and broadcasting to them means calling the Resend Broadcasts API. The question was: how do I trigger that broadcast as part of the publish flow, without adding complexity to the build pipeline? The an...