Is helpernode ready for rhel9?

First of all, thanks for sharing all this info... it's very usefull... You say helpernode have been tested on rhel7/rhel8, but I've tried to run ansible-playbook -e @vars.yaml tasks/main.yml  on rhel9 and  I get some errors... 

Right now, I'll run it on rhel8, but I wanted to ask if you have run in on rhel9?

Cheers