This repository contains very very old open source works from @trustin. You might find something interesting if you are trying to understand how he ended up with projects like Netty or Armeria.
From https://code.google.com/archive/p/trustin/:
This project contains Trustin Lee's various personal open source works. A subproject in this project is supposed to graduate from this sandbox once it gains momentum.
Please note that each subproject has its own terms of license. Make sure to read LICENSE.txt in each subproject directory.