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José Valim

@plataformatec founder, Open Source developer, Rails Core Team Member, Ruby Hero and creator of Elixir, code available at

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Our stack and technology

  • Ruby
  • Ruby on Rails
  • JavaScript
  • MySQL
  • MongoDB
  • Elixir
  • Erlang

From the Plataformatec blog



Bootstrap 3 support for Simple Form

We just released Simple Form 3.1.0.rc1 with support to Bootstrap 3. To make it possible, we leveled up the Wrapper API to make it more extensible and to allow developers to directly configure it instead of relying on global state. After such improvements, it was very easy to change the Simple For...

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3 features from Rails 4.1 that I’m excited about

Rails 4.1 was just released this week and I already had a great experience trying out the release candidates on my latest project, so I decided to write a bit about my favorites features on this release and some things I have learned by using them so far. 1) secrets.yml Placing your configuration...

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Latest Protips from the Plataformatec Team

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