Hey, thanks for your reply. Your line of thought is very similar to what we had. We considered refactoring the existing Java implementation. It used a really old Jersey version, with too many overengineered customizations tightened to that version. We tried to upgrade it and get rid of some of those customizations, but the system was so fragile that other parts of the system stopped working, which made that a really difficult road to drive. We wanted to simplify the design. We chose Scala and Finagle for the new stack.