OneUptime: Open Source StatusPage.io + UptimeRobot + PagerDuty alternative that you can self-host on Kubernetes and Helm
OneUptime (https://github.com/oneuptime/oneuptime) is the open-source alternative to StausPage.io + UptimeRobot + PagerDuty. We're working on adding APM functionalities to it to make it closer to an open-source alternative to data dog. It's 100% free and you can self-host it on your VM / server.
Out of interest, this has a large number of services, once you add logging and testing etc. What will be the entry level resource requirements? (RAM etc)