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Open Source Articles

Written by thoughtbot, your expert partner for design and development.

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  1. thoughtbot's agent skills

    Announcing some new skills for Claude and other coding agents to help with development, design, and consulting.

    Dave Iverson
    September 21, 2026
    • Agents
    • Claude
    • Open Source
    • AI
    • Tools
    • Development
  2. Announcing importmap-update: automated dependency updates for importmap-rails

    Dependabot keeps your gems current, but it doesn’t know about the JavaScript packages pinned in your Rails importmap. We’re releasing a GitHub Action that opens pull requests for the ones that are outdated or vulnerable.

    Neil Carvalho
    September 9, 2026
    • Open Source
    • JavaScript
    • Rails
    • GitHub Actions
    • Development
  3. Humid 1.0: React server-side rendering in Rails can be easy!

    We’re releasing Humid 1.0. A few helper methods to help with React server-side rendering in Rails with mini_racer.

    Johny Ho
    August 4, 2026
    • Frontend
    • JavaScript
    • Open Source
    • Rails
    • Ruby On Rails
    • React
  4. Roux’s New Component Library

    We’ve added UI components to Roux!

    Elaina Natario and Dave Iverson
    July 1, 2026
    • HTML
    • CSS
    • News
    • Open Source
  5. Announcing Shoulda Matchers 8.0: validate multiple attributes in one line

    The latest Shoulda Matchers cuts repetitive validation specs down to a single line, runs on Ruby 4, and keeps up with the newest Rails.

    Matheus Sales
    June 23, 2026
    • News
    • Ruby
    • Ruby On Rails
    • Testing
    • Open Source
    • Shoulda
  6. Why Duck Typer?

    Some say interface tests are fragile and shouldn’t be written. I disagree. Here’s why I think they’re worth writing.

    Thiago Araújo Silva
    May 26, 2026
    • Ruby
    • Testing
    • Open Source
    • Design
  7. Why thoughtbot is joining the Ruby Alliance

    thoughtbot is joining the Ruby Alliance, a coalition of companies investing in the long-term sustainability of Ruby infrastructure and the broader ecosystem. Here’s why we believe shared stewardship matters for Ruby’s future.

    Chad Pytel and Ran Craycraft
    May 20, 2026
    • News
    • Ruby
    • Ruby On Rails
    • Open Source
    • Community
  8. PII filtering for RubyLLM with Top Secret

    Automatically filter sensitive information from your RubyLLM conversations before it reaches third-party providers.

    Steve Polito
    April 17, 2026
    • Open Source
    • Artificial Intelligence
    • Language Models
    • Ruby
    • Llm
    • Rubyllm
  9. Announcing Michel: A scheduling gem for health tech

    Remove bottlenecks to booking appointments by enabling self-scheduling within your app.

    Sally Hall
    February 5, 2026
    • Health Tech
    • Databases
    • Ruby On Rails
    • PostgreSQL
    • Open
    • Open Source
    • Performance
    • Web
  10. Rethinking CSS with Roux - debuting at thoughtbot Open Summit

    Remember Bourbon and Bitters? Meet their modern successor: Roux. Elaina Natario talks about her new CSS boilerplate that rethinks how teams structure and scale their styles without needing to reach for frameworks like Tailwind.

    Lindsey Christensen
    October 27, 2025
    • CSS
    • Open Source
    • Events
    • News
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