Metrics are something critical for our services, but the community has seen badly maintained solutions over the years.
One such library is prometheus, one of the most downloaded packages in Hex.pm

We’ve set to change this, and we want to tell you about it.
But first, do you know what it is meant when talk about observability?
Do you know the difference between metrics and instrumentation?
Do you know what is the role of Telemetry, and what is the role of Prometheus?
Are you familiar with how to best use your Prometheus client library?

In this short presentation, we’ll go through an overview of the topic of observability, some hints on how to instrument and add metrics to your application – with prometheus, how this dependency works, and what have we done about it to make it work best.