The current API it's build using http4k toolkit, which allows us to create pure, functional and immutable HTTP services. Under the hood, at the persistence layer, I've used jetbrains exposed, taking advantage of the nice DSL that it provides.
For starting the application, the main() function from the Program file should be run. A Jetty server will start on port 9090.
The application is build without using a Dependency Injection framework like Spring, instead I've tried to build a minimal, functional, dependency container, based on the interface FreesoftSystem.