No one is "hating" on Grafana. But if you used tools of the past, you'd know how light they were compared to the Grafana/Kibana/Elastic mongrel.
But I should mention that there is nothing "stupid simple" about the solution of the OP. Just look at the install procedure... https://tomscii.sig7.se/umon/
what in the... what is the point?? I've used Grafana many times and it's always, always a simple docker start -v, ..., and modifying some configs to get started. This tool is completely useless.
But I should mention that there is nothing "stupid simple" about the solution of the OP. Just look at the install procedure... https://tomscii.sig7.se/umon/