I've done something similar for a small service running in Docker compose. Maybe...

WuxiFingerHold 5 months ago | parent | context | favorite | on: OpenTelemetry Tracing in < 200 lines of code

I've done something similar for a small service running in Docker compose. Maybe I didn't think through it but the complexity and huge dependencies introduced by the official libs immediately turned me off. DIY was very easy and simple.