I tried terraform for my three node proxmox cluster and all the providers were shit (and one was written by a for-profit prison company).

I ended up just deploying manually, but I do heavily use ansible for things like let's encrypt wild card cert renewal/installation and patch management.

I love terraform when the providers are good - my #dayjob is predominantly spinning up hybrid cloud/global AWS environments and we could not do what we do without tools like Cruft, Terraform, and Ansible.