I've been wanting to build a generic version of this type of tool for quite some time. When I'm waiting several minutes for our app server to startup, I often

I've been wanting to build a generic version of this type of tool for quite some time. When I'm waiting several minutes for our app server to startup, I often ponder what life would be like if we had chosen language X or another stack for our application. I've primarily worked on JRE-based stacks for some time and once a project reaches a certain size developer happiness begins to decline due to large compilation times, app startup times, etc. Even incremental compiling or hot-reloading of classes seems unreliable at a certain app size (either due to memory or some other reason). It would be neat if there were a tool to generate large and complex apps with various stacks to get a feeling what the developer experience would be like 1-2 years down the road once the app reaches a critical mass.