start out with thoughtbots version

zsh/configs/color.zsh

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+# makes color constants available
+autoload -U colors
+colors
+
+# enable colored output from ls, etc. on FreeBSD-based systems
+export CLICOLOR=1

zsh/configs/editor.zsh

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+export VISUAL=vim
+export EDITOR=$VISUAL

zsh/configs/history.zsh

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+setopt hist_ignore_all_dups inc_append_history
+HISTFILE=~/.zhistory
+HISTSIZE=4096
+SAVEHIST=4096

zsh/configs/keybindings.zsh

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+# give us access to ^Q
+stty -ixon
+
+# vi mode
+bindkey -v
+bindkey "^F" vi-cmd-mode
+
+# handy keybindings
+bindkey "^A" beginning-of-line
+bindkey "^E" end-of-line
+bindkey "^K" kill-line
+bindkey "^R" history-incremental-search-backward
+bindkey "^P" history-search-backward
+bindkey "^Y" accept-and-hold
+bindkey "^N" insert-last-word
+bindkey "^Q" push-line-or-edit
+bindkey -s "^T" "^[Isudo ^[A" # "t" for "toughguy"

zsh/configs/options.zsh

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+# awesome cd movements from zshkit
+setopt autocd autopushd pushdminus pushdsilent pushdtohome cdablevars
+DIRSTACKSIZE=5
+
+# Enable extended globbing
+setopt extendedglob
+
+# Allow [ or ] whereever you want
+unsetopt nomatch

zsh/configs/post/completion.zsh

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+# load our own completion functions
+fpath=(~/.zsh/completion /usr/local/share/zsh/site-functions $fpath)
+
+# completion
+autoload -U compinit
+compinit

zsh/configs/post/path.zsh

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+# ensure dotfiles bin directory is loaded first
+PATH="$HOME/.bin:/usr/local/sbin:$PATH"
+
+# load rbenv if available
+if command -v rbenv >/dev/null; then
+  eval "$(rbenv init - --no-rehash)"
+fi
+
+# mkdir .git/safe in the root of repositories you trust
+PATH=".git/safe/../../bin:$PATH"
+
+export -U PATH

zsh/configs/prompt.zsh

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+# modify the prompt to contain git branch name if applicable
+git_prompt_info() {
+  current_branch=$(git current-branch 2> /dev/null)
+  if [[ -n $current_branch ]]; then
+    echo " %{$fg_bold[green]%}$current_branch%{$reset_color%}"
+  fi
+}
+setopt promptsubst
+PS1='${SSH_CONNECTION+"%{$fg_bold[green]%}%n@%m:"}%{$fg_bold[blue]%}%c%{$reset_color%}$(git_prompt_info) %# '