diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..525b554
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+
+if which tput >/dev/null 2>&1; then
+  ncolors=$(tput colors)
+fi
+if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
+  RED="$(tput setaf 1)"
+  GREEN="$(tput setaf 2)"
+  YELLOW="$(tput setaf 3)"
+  BLUE="$(tput setaf 4)"
+  BOLD="$(tput bold)"
+  NORMAL="$(tput sgr0)"
+else
+  RED=""
+  GREEN=""
+  YELLOW=""
+  BLUE=""
+  BOLD=""
+  NORMAL=""
+fi
+
+set -e
+
+cwd=$PWD
+platform=`uname`
+
+if [[ $platform != 'Linux' && $platform != 'Darwin' ]]; then
+  printf "${RED}This is only supported on Linux or OS X.${NORMAL}\n"
+  exit
+fi
+
+if [ ! -d "$HOME/.dotfiles" ]; then
+  printf "${YELLOW}Creating dotfiles symlink${NORMAL}\n"
+  ln -s $cwd $HOME/.dotfiles
+fi
+
+printf "Installing zsh..."
+TEST_CURRENT_SHELL=$(expr "$SHELL" : '.*/\(.*\)')
+if [ "$TEST_CURRENT_SHELL" != "zsh" ]; then
+  if hash chsh >/dev/null 2>&1; then
+    printf "\n${BLUE}Changing the default shell to zsh${NORMAL}\n"
+    chsh -s $(grep /zsh$ /etc/shells | tail -1)
+  else
+    printf "\n${RED}Unable to change the shell because this system does not have chsh.\n"
+    printf "${BLUE}If this is Windows then you probably want to run the bash installer.${NORMAL}\n"
+  fi
+else
+    printf "${YELLOW}already installed!${NORMAL}\n"
+fi
+
+# ////////////////////////////////////////////////////////////////////////////////////////
+# OSX
+
+if [[ $platform == 'Darwin' ]]; then
+  printf "\nRunning the OS X installer\n"
+  ./osx/install.sh
+fi
+
diff --git a/osx/install.sh b/osx/install.sh
new file mode 100755
index 0000000..9a3801d
--- /dev/null
+++ b/osx/install.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+if which tput >/dev/null 2>&1; then
+  ncolors=$(tput colors)
+fi
+if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
+  RED="$(tput setaf 1)"
+  GREEN="$(tput setaf 2)"
+  YELLOW="$(tput setaf 3)"
+  BLUE="$(tput setaf 4)"
+  BOLD="$(tput bold)"
+  NORMAL="$(tput sgr0)"
+else
+  RED=""
+  GREEN=""
+  YELLOW=""
+  BLUE=""
+  BOLD=""
+  NORMAL=""
+fi
+
+set -e
+
+printf "Installing Homebrew..."
+if [ ! -d "/usr/local/Homebrew" ]; then
+  /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+else
+  printf "${YELLOW}already installed!${NORMAL}\n"
+fi
+
+brew_packages=(
+  'tree'
+  'openssl')
+
+for package in "${brew_packages[@]}"
+do
+  printf "Installing $package..."
+  ret=$(brew list | awk /$package/)
+  if [ $ret == $package ]; then
+    printf "${YELLOW}already installed!${NORMAL}\n"
+  else
+    eval "brew install $package"
+    printf \n
+  fi
+done