Using a pre-deploy hook can prevent ActiveRecord::ConcurrentMigrationError when multiple web containers boot at the same time. At my day job, we deploy our Rails app in production to three separate web hosts using Kamal. Each container runs bin/do...

Tropical on Rails - The Latin America Rails Conference was created by Frevo on Rails (Pernambuco Ruby User Group) in 2012. It hosted two regional editions in 2012 and 2013, and two international editions in 2014 and 2015. On April 4th and 5th of 2...