@John Moore We use Grails for our monolith and Micronaut for our partner middleware. Our monolith has a lot of code and uses GSP rendering, JSON views, and the database migration plugin. We're in the process of splitting it up where it makes sense. As for whether or not you should use Grails/MN, I think: • Grails: possible to build a micro-service, but works best as a monolith • Micronaut: possible to build a monolith, but works best as a micro-service