This repo should provide a starting point how to apply the remote engine pattern.
Have a look at the running instance: Camunda Platform
You could login with username: admin and password: pw.
Using the external task pattern to work on a service task.
The artefact-deployment module provides a custom annotation which searches all .bpmn,
.dmn and .form files in your resources and deployed them to the remote engines via the REST Api.
# Install all dependencies
$ ./mvnw install
# Install and start the remote engine
$ ./mvnw spring-boot:run -pl remote-engine
# Start the external task worker
$ ./mvnw spring-boot:run -pl worker