I am working on a small side project. It is called Guardian.
The goal is to check the status of several services and, hopefully, interdependents.
It really embraces the KISS principle. The services and checks to be performed are specified in a YAML file. No server is necessary, nor any required database. Actually it is only possible to generate responsive HTML reports, surely it will be possible to generate Markdown files. The email notification system is almost implemented.
The software is licensed under GNU Affero General Public License version 3.
PS: The main reason to write this post in English is that my blog is now followed in the Fediverse. Try to follow “@Cedric@blog.cedricbonhomme.org” in the Mastodon/Friendica search field.