"Thin" war with execution-server, deployment management and remote API (REST/JMS/SOAP)

This is a "lightweight" war, that could contain the following:

1. REST services (obviously)
   1. Variations containing only REST, JMS or WS, or whatever combination are easy enough..
2. Underlying connection to the jBPM runtime/engine (basically, the jbpm-runtime-manager and jbpm-kie-services module), so that processes could be started, etc.
3. Deployment management, because 1 and 2 need that

This means, of course, no UI, no guvnor, no web-designer, etc.

Input from a user regarding this use case:

We use KIE Worbench straight out of the box to design processes, and then export them via GIT directly to our GUI-less stand alone execution engine. The engine is controlled with a REST API that we fiddle with via BASH scripts and our already-existing management GUI.