Tmux & Vim with a bunch of plugins. And most of the languages I use are in the OS's package manager. Setup is "apt-get/brew install ..." followed by "hg clone

Tmux & Vim with a bunch of plugins. And most of the languages I use are in the OS's package manager. Setup is "apt-get/brew install ..." followed by "hg clone ..." for my plugins and settings. So, direct answer would be "a few minutes."