An overview of the features, policies and state of the Let's Encrypt Certificate Authority.
How to send an HTTP/2 request with cURL installed on Mac OS X.
How to fix the Failed to build gem native extension error that you to properly deploy a Ruby on Rails application to Heroku.
Slides and code from my meetup talk A practical introduction to Golang at Codemotion Rome 2015.
A short coverage of the TropicalRuby 2015 conference in Recife.