[tsm]

"Configuration as code". In other words, "configuration as plain text files". Another innovation that's actually been in *nix since forever.

As a result of this, I can turn any computer into a me-friendly machine in about an hour. Install my favorite Openbox-based distro (Crunchbang), copy over dotfiles I've already customized, and install every package from a list that's been exported from my main laptop.