Is anyone aware of self-hosted version of https://www.checklyhq.com/?
uptime-kuma is a close candidate, but it only supports quite basic tests. Ideally it would be nice if it was possible to run more involved playwright tests and keep track of the historical successes and failures.
Kuma can actually do quite a lot, as long as for example your application provides an endpoint to connect to, Kuma can query it and check for specific content in the replies. It is much more than just a “is it up or down” tool.