Hi HN,<p>I built an uptime monitoring tool similar to other services, but more lightweight, easier to set up, and focused on developer flexibility. It includes all the essential features — keyword assertions, custom HTTP methods, retries, alerts via SMS/Email/Slack/Webhooks — with a clean JSON config system for advanced setups.<p>I originally made it last month to learn more about Firebase Cloud Functions and Cloud Run, and to build something real for my portfolio. It turned out to be genuinely useful, so I’ve decided to share it.<p>Would love your feedback – especially from devs who monitor lots of APIs or services.<p>Live: <a href="https://eurker.com" rel="nofollow">https://eurker.com</a><p>Thanks!