Hi, I submitted a component to support zeebe 8 for on-premises to camel that is already integrated and due to be released with 3.21. Anybody interested in checking it out can build the camel-3.x branch camel/components at camel-3.x · apache/camel · GitHub
It still needs some work, especially on documentation and tests and support for the service, which is lacking as I do not have an account for that.
Cheers, karsten