This is a presentation about the Thessaloniki Ruby Meetup (thessrb) that was part of the "We are together" event.
You can preview it online at https://speakerdeck.com/xarisd/thessaloniki-ruby-meetup-thessrb-at-2nd-we-are-together
Here you can find the source of the examples used for the presentation. You can open them in a code editor or even execute them to see the results.