How to exclude RKE system services on some worker nodes


I’m running a cluster with 3 working nodes. Now, I need to increment the worker nodes by 6, but these ones will have lower specs and I want them only for one specific deployment. How I can prevent rke up from running other services on this new working nodes (like cert-manager and other system services)? For standard kubernetes/helm app deploy i just can use node selector, but I don’t know how to prevent system services on rke up.

I read on the git issues somthing about taint nodes (link or link), but I can not find more information on how I can achieve this result. I just want this new, low specs worker nodes to run the minium (apart from the specific deploy they are ment to host).

Thank you in advance.