I’ve been facing a similar search for an ultra-simple but ultra-extensible monitoring solution for my homelab. I’ve had the idea to write a Python program where the main script is just responsible for scheduling and executing the checks, logging, and alerting based on set thresholds.

All monitoring would be handled via plugins, which would be extremely easy to write.

It would ship with a few core plugins (ping, http, cert check, maybe snmp), but you could easily write a plugin to monitor anything else — for example, you could use the existing Python Minecraft library and write a plugin to monitor your Minecraft server. Or maybe even the ability to write plugins in any language, not just Python.

I’m not a developer and I’m opposed to vibe coding, so it’ll be slow going :)