Retrieving via RTT is interesting, the idea for structured logging was basically:

* Use Serde types instead of Debug/Format
* Send them as postcard-rpc topic publishes

The unsolved problem was: How do you get all the schemas, if you are just doing `info!()` or whatever everywhere. One option was to put it all in a linker section (one that is resident), like `linkme`, and send it on demand, like postcard-rpc's schema discovery does already