How have you automated configuring your machines in terms of packages and dotfiles so it works cross-distro?

I'm looking for interesting tools to automate managing packaging and configuring everything automated.

And yeah I know about NixOS but I like to distro hop and experiment so I for now know these:

• Ansible - automating many machines, using different package names as vars and package managers.
• Bash - the most native and compatible scripting language that can be.
• Chezmoi - for dotfiles.

For now that's it. I'm looking forward for your suggestions!