Thanks, @KrauseFx, for inspiration!

zshrc

@@ -30,6 +30,28 @@ alias hpr='hub pull-request -o'
 alias ghistory='history | grep'
 alias gcad='g add . && gca -m'
 
+# Thanks, @KrauseFx, for inspiration!
+# https://github.com/KrauseFx/dotfiles/blob/master/.zshrc
+alias zshrc="code ~/.zshrc"
+# what ! means?🤔
+#alias bundle!="bundle install && rake install"
+alias be="bundle exec"
+alias bi="bundle install"
+alias bu="bundle update"
+alias ri="rake install"
+# they are defauls in zsh (oh-my-zsh), don't know why there is duplicates
+#alias gc="git checkout"
+#alias gco="git checkout"
+#alias gcm="git checkout master"
+#alias gpull="git pull"
+#alias gpush="git push"
+#alias gbranch="git checkout -b"
+#alias gclone="git clone"
+alias s="code ."
+alias o="open ."
+# what is up? 🤔 
+#alias r="up && be rubocop -a"
+
 # Now you can 'git kraken'!
 alias kraken='open -na "GitKraken" --args -p "$(git rev-parse --show-toplevel)"'
 
@@ -198,4 +220,4 @@ eval "$(thefuck --alias)"
 export PATH="$HOME/.yarn/bin:$HOME/.config/yarn/global/node_modules/.bin:$PATH"
 
 # heroku autocomplete setup
-HEROKU_AC_ZSH_SETUP_PATH=/Users/pk/Library/Caches/heroku/autocomplete/zsh_setup && test -f $HEROKU_AC_ZSH_SETUP_PATH && source $HEROKU_AC_ZSH_SETUP_PATH;
+HEROKU_AC_ZSH_SETUP_PATH=/Users/pk/Library/Caches/heroku/autocomplete/zsh_setup && test -f $HEROKU_AC_ZSH_SETUP_PATH && source $HEROKU_AC_ZSH_SETUP_PATH;