Maintaining Efficient Workflows Across Multiple UNIX Systems

I’ve been working across several UNIX-based systems recently, and it made me curious how others keep their environments consistent and efficient. Switching between machines can create small differences in tools, configs, or shell behavior, and I’m interested in learning how more experienced users manage this.

At the moment, I’m using a very minimal dotfile setup along with some simple scripting to keep my workflow uniform, but I’m sure there are more elegant solutions out there. For example, tools for managing shared configs, best practices for shell environments, or clever automation tricks that make it easier to move between systems.

If anyone has experience with maintaining consistency across multiple UNIX setups — whether for scripting, admin work, or general productivity — I’d really appreciate hearing your approaches.

Thanks in advance for sharing your insights!

I use git and github (private repos) for this.... which means I can easily manage configs across multiple devices and maintain full version control.

In my past profession I had maintained a conplex shell environment for (t)csh, bash, zsh.
The initial .cshrc .login and .bashrc .zshrc .profile (in /etc/skel/) were updated to source a common include file from an NFS share (NetApp Cluster).
The modification of skel and fstab can be done with chef or ansible (or git).