𒀭Wiiお姉さん 💜 🏳️⚧️dagu + healthchecks are a surprisingly solid combo for monitoring services, at least with my modest requirements.
Was already considering replacing healthchecks with gatus because that can actively monitor services.
This way is cooler though; I have one system to run checks and one system to report outages. If dagu goes down, healthchecks will still report it, so my single point of failure (on the software side) is now a lot smaller.