### Tooling

  1. xcode https://developer.apple.com/xcode/download/
  2. home brew https://www.ruby-lang.org/en/documentation/installation/
  3. rbenv https://github.com/rbenv/rbenv `brew install rbenv`
  4. git https://git-scm.com/book/en/v2/Getting-Started-Installing-Git `brew install git`

### Ruby Basics
  - http://rubyonrailstutor.github.io/basics/ruby-basics-strings/
  - http://rubyonrailstutor.github.io/basics/ruby-basics-arrays/
  - http://rubyonrailstutor.github.io/basics/ruby-basics-hashes/

### HTTP Basics
  - https://github.com/codeunion/sinatra-playground
  - https://github.com/codeunion/tweetalyzer
  - https://github.com/codeunion/sinatra-exercises/tree/master/exercises
  - https://github.com/codeunion/can-i-eat-here
  - https://github.com/codeunion/twitter-client
  - 
  
`if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi`
`export PATH="$HOME/.rbenv/bin:$HOME/bin:/usr/local/bin:"`