A basic ~/.zshrc configured with some colors, vi mode, and for use with Homebrew. Also shows the current git branch.

.zshrc

export PATH="$(brew --prefix)/bin:$PATH"
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
export HISTSIZE=2000
export HISTFILE="$HOME/.history"
export SAVEHIST=$HISTSIZE

setopt hist_ignore_all_dups
setopt hist_ignore_space

autoload -U colors && colors
autoload -U compinit

compinit

parse_git_branch () {
    GIT_BRANCH=$(git symbolic-ref --short HEAD 2> /dev/null) || return
    echo " ["$GIT_BRANCH"]"
}

precmd () {
    export PROMPT="%{$fg[cyan]%}%n%{$reset_color%} at %{$fg[yellow]%}%m%{$reset_color%} in %{$fg[red]%}%~%{$fg[black]%}%B$(parse_git_branch)%b%{$reset_color%}"$'\n'"%# " 
}

bindkey -v

bindkey '^P' up-history
bindkey '^N' down-history
bindkey '^?' backward-delete-char
bindkey '^h' backward-delete-char
bindkey '^w' backward-kill-word
bindkey '^r' history-incremental-search-backward

function zle-line-init zle-keymap-select {
    VIM_PROMPT="-- INSERT --"
    RPS1="${${KEYMAP/(main|viins)/$VIM_PROMPT}/vicmd/}$EPS1"
    zle reset-prompt
}

zle -N zle-line-init
zle -N zle-keymap-select

export KEYTIMEOUT=1

alias ls="ls -Gh"
alias l="ls -Glh"
alias la="ls -Glah"

. `brew --prefix`/etc/profile.d/z.sh