Environment agnostic Vim is not just a configuration choice, it is a discipline. It means building a Vim setup that moves with you—portable, predictable, and immune to the quirks of local environments. Engineers waste hours tweaking dotfiles when switching between workstations, containers, or remote servers. A truly environment agnostic Vim setup kills that problem at the root.
The process starts with defining a single source of truth. Store your .vimrc and plugin list in version control. Use a minimal bootstrap script that installs your exact config from that repo. Make sure it runs identically on macOS, Linux, and even inside headless CI runners. Avoid platform-specific hacks unless absolutely necessary. If you need different behavior per environment, make those differences explicit and contained.
Plugins must be curated for portability. Choose ones that do not depend on external binaries or GUI features. Stick to packages that work clean in terminal Vim and Neovim. Test your config in a fresh VM or container to confirm it operates without your usual local assumptions. That test will reveal hidden dependencies—kill them.