Most data jobs re-pull the whole source every run and waste time and money on data that didn't move. A change-detection engine wakes up, checks what actually changed, and pushes only the diff. I built a generic one: point it at any URL — a JSON feed, an RSS/Atom feed, or a plain HTML page — and...
Source: [Dev.to](https://dev.to/darksider4all_afa2428f63d0/building-a-change-alert-engine-that-webhooks-any-diff-on-any-url-44ip)