I am trying to build a small POC thats able to receive, process and produce prometheus remote write metrics (prompb).
I see lost of libraries for instrumenting code not but for handling or generating remote write events.
A little late to this one, but in PromEx, I bundle Grafana Agent and have it running via a port in order to ship metrics via remote_write to a hosted Prometheus instance. The same Grafana Agent instance can then also ship traces and logs depending on how you configure it.