Client library
Server-side library: https://github.com/iamborisov/camunda-bpm-spring-boot-starter-grpc-server
Usage examples: https://github.com/iamborisov/camunda-bpm-spring-boot-starter-grpc-examples
Inspired by https://github.com/tmetzke/camunda-bpm-grpc-external-task