Dealing with JRuby will just be that much more to manage, but will introduce the JVM in a single app. You don't have to do everything at once if you break into

Dealing with JRuby will just be that much more to manage, but will introduce the JVM in a single app. You don't have to do everything at once if you break into separate apps/boxes/services. We're growing to the point of needing a few distinct components after building a Rails monolith that already had very strong internal boundaries. As we split out different parts to run on different machines, they will either get an immediate re-write, or eventual re-write from behind the service interface.