My zsh configuration

.zshrc

# =======
# GLOBALS
# =======

if [[ "$(uname)" == "Darwin" ]]; then
    platform="Darwin"
elif [[ "$(expr substr $(uname -s) 1 5)" == "Linux" ]]; then
    platform="Linux"
else
    platform="POSIX"
fi

# ===========================
# LOCALE, TERMINAL AND COLORS
# ===========================

export LC_CTYPE=en_US.UTF-8
export LANG=en_US.UTF-8

autoload -Uz colors && colors

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color|*-256color) color_prompt=yes;;
esac

if [[ "$color_prompt" = yes ]]; then
    case $platform in
        "Darwin")
            PS1="%{$fg_bold[cyan]%}%n@%m%{%f%}:%{$fg_bold[magenta]%}%~%{$reset_color%}%# "
            ;;
        "Linux")
            PS1="%{$fg_bold[green]%}%n@%m%{%f%}:%{$fg_bold[blue]%}%~%{$reset_color%}%# "
            ;;
    esac
else
    PS1="%n@%m:%~%# "
fi
unset color_prompt

# If this is an xterm set the title to user@host:dir
case $TERM in
xterm*|rxvt*)
    precmd () {print -Pn "\e]0;%n@%m:%~%#\a"}
    ;;
*)
    ;;
esac

export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
export LS_OPTIONS='--color=auto'

case $platform in
    "Darwin")
        export CLICOLOR=1
        export LSCOLORS="exgxfxdacxDaDaxbadacex"
        export LS_COLORS="di=34;40:ln=36;40:so=35;40:pi=33;40:ex=32;40:bd=1;33;40:cd=1;33;40:su=0;41:sg=0;43:tw=0;42:ow=34;40:"
        alias grep='grep --colour=auto'
        alias fgrep='fgrep --colour=auto'
        alias egrep='egrep --colour=auto'
        ;;
    "Linux")
        eval "$(dircolors -b)" 
        alias ls='ls --color'
        alias grep='grep --color=auto'
        alias fgrep='fgrep --color=auto'
        alias egrep='egrep --color=auto'
        ;;
esac

# =================
# EDITING & HISTORY
# =================

setopt histignorealldups sharehistory

# Use emacs keybindings even if our EDITOR is set to vi
bindkey -e

# Keep 1000 lines of history within the shell and save it to ~/.zsh_history:
HISTSIZE=1000
SAVEHIST=10000
HISTFILE=~/.zsh_history

# =================
# SHELL COMPLETION
# =================
# Use modern completion system

autoload -Uz compinit && compinit -i # ignore permission differences in macOS/brew

zstyle ':completion:*:default' list-colors ${(s.:.)LS_COLORS}
zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
zstyle ':completion:*' auto-description 'specify: %d'
zstyle ':completion:*' completer _expand _complete _correct _approximate
zstyle ':completion:*' format 'Completing %d'
zstyle ':completion:*' group-name ''
zstyle ':completion:*' menu select=2
zstyle ':completion:*' list-prompt %SAt %p: Hit TAB for more, or the character to insert%s
zstyle ':completion:*' matcher-list '' 'm:{a-z}={A-Z}' 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=* l:|=*'
zstyle ':completion:*' menu select=long
zstyle ':completion:*' select-prompt %SScrolling active: current selection at %p%s
zstyle ':completion:*' use-compctl false
zstyle ':completion:*' verbose true

zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#)*=0=01;31'

case $platform in
    "Darwin")
        zstyle ':completion:*:kill:*' command 'ps -u $USER -o pid,%cpu,tty,cputime,comm'
        ;;
    "Linux")
        zstyle ':completion:*:kill:*' command 'ps -u $USER -o pid,%cpu,tty,cputime,cmd'
        ;;
esac

autoload -U +X bashcompinit && bashcompinit # Bash completion compatibility


# Azure CLI completion
# (you should have run activate-global-python-argcomplete --user first)
[ -e $HOME/.bash_completion.d/python-argcomplete.sh ] && source $HOME/.bash_completion.d/python-argcomplete.sh
[ $(type register-python-argcomplete > /dev/null 2>&1) ] && eval "$(register-python-argcomplete az)"

# =================
# LANGUAGE RUNTIMES
# =================

# Python
[ $(type pyenv > /dev/null 2>&1) ] && eval "$(pyenv init -)"
[ -e /usr/local/opt/pyenv/completions/pyenv.bash ] && source /usr/local/opt/pyenv/completions/pyenv.bash

# Golang
export GOPATH=$HOME/Developer/gocode
export PATH=$PATH:$GOPATH/bin

# NodeJS
NPM_PACKAGES="${HOME}/.npm-packages"
if [ -d $NPM_PACKAGES ]; then
    # Make private binaries take precedence
    export PATH=$NPM_PACKAGES/bin:$PATH

    # Unset manpath so we can inherit from /etc/manpath via the `manpath` command
    unset MANPATH # delete if you already modified MANPATH elsewhere in your config
    export MANPATH="$NPM_PACKAGES/share/man:$(manpath)"
fi
export NODE_PATH=$NODE_PATH:/usr/local/lib/node
export PATH=$PATH:/usr/local/share/npm/bin

# =======
# ALIASES
# =======

export EDITOR=vim

if type nvim > /dev/null 2>&1; then
  alias vi='nvim'
  alias vim='nvim'
fi

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

case $platform in
    "Darwin")
        alias brew="echo 'REMEMBER TO RUN HOMEBREW AS ADMIN'"
        export PATH=$PATH:/Aplications/Xcode.app/Contents/Developer/usr/bin
        alias code='open -a Visual\ Studio\ Code "$@"'
        alias tt='open -a Textastic "$@"'

        # Go from brew
        export PATH=$PATH:/usr/local/opt/go/libexec/bin

        # Clipboard
        test -z "$(type -p putclip)" -a -n "$(type -p pbcopy)"  && alias putclip=pbcopy
        test -z "$(type -p getclip)" -a -n "$(type -p pbpaste)" && alias getclip=pbpaste
        ;;
    "Linux")
        alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
        [ -x /usr/bin/keychain ] && eval `keychain --agents ssh --eval id_rsa --quiet -Q` 

        # Clipboard
        if [ -n "$(type -p xclip)" ]; then
            test -z "$(type -p putclip)"  && alias putclip="$(type -p xclip) -sel clip -i"
            test -z "$(type -p getclip)"  && alias getclip="$(type -p xclip) -sel clip -o"
            alias xclip='xclip -sel clip'
        fi
        if [ -c /dev/clipboard -a -w /dev/clipboard ]; then
            test -z "$(type -p getclip)"  &&  alias getclip="cat /dev/clipboard"
            test -z "$(type -p putclip)"  &&  alias putclip="cat > /dev/clipboard"
        fi
        ;;
esac

unset platform

# ======
# EXTRAS
# ======

[ -e $HOME/Dropbox/Scripts/z.sh ] && source $HOME/Dropbox/Scripts/z.sh