Hey folks, I sprinted last week to create a bit more tech to articulate how the Ethereum client can work: https://github.com/apache/incubator-tuweni/pull/251
I went pretty quick and loose. This PR adds a metrics service that can expose with OpenTelemetry via Prometheus and/or grpc pushes interesting metrics. I also got the client to the point it can sync to another node with sync strategies. I played with indexing a little bit as well. I swapped leveldb to an infinispan cache with rocksdb backend - just for headers for now. We could make this even more configurable going forward. So this PR is opening a bunch of future directions. Please feel free to review.
