Microservices become expensive before you even build the real product.

You spend time setting up infrastructure, configs, and diagrams instead of solving the actual problem.

And most architecture diagrams are outdated before the sprint even ends.

This post is about collapsing that gap — using a Domain-Specific Language (DSL) and live architecture diagrams to prototype a working microservice system in minutes, not days.

The real cost of prototyping microservices

A standard prototype cycle looks like this:

Sketch architecture in Miro or Excalidraw

Scaffold three or four service repos

Set up Dockerfiles, a Compose file, and an Nginx reverse proxy

Write database migrations

Implement boilerplate route handlers just to test a POST endpoint

Update the diagram — which is already wrong

By the time you have something you can actually demo, half a sprint is gone.…