We make engineering teams more productive
Faster features, fewer incidents, CI that doesn’t kill you, and more frequent deploys. We’ve done that at companies like Gusto, 37Signals & One Medical, and we can do it for you.
With decades of experience, we can find you the right tool, cut off your research rabbit-holes, and level up your developers. We can build the feedback loop of speed, quality, and joy that Ruby and Rails are famous for, at a fraction of the cost of an in-house team.
Work with us
We’ve helped build the open source you’re already using, and we’re bringing all that knowledge to help your teams diagnose problems and come up with vastly simpler, faster solutions you can’t find elsewhere.
- We audit your codebase, giving you detailed reporting on where and what to fix.
- We fix hair-on-fire slow CI and set you up so it doesn’t happen again.
- We help you diagnose and prevent outages and incidents.
You work on your business problems, and let us get your developers unblocked.
Book a free initial planning session or send us an email today.
Tools
rv, the next-generation Ruby version and project managerrv-ruby, precompiled Ruby binaries for x86 and ARM, on macOS or Linuxoaken, vastly speed up your CI: replace slow factories & skip the maintenance burden of Rails’ fixturesbrat, a parallel TAP testing harness for the POSIX shell
Team
André Arko helped create the Ruby dependency manager Bundler in 2009 and led the team of maintainers working on Bundler and RubyGems.org from 2014 to 2025. As a fan of the Ruby language, he wrote The Ruby Way, 3rd Edition for Addison-Wesley. Outside of open source, he has spent the last 15 years consulting on tools and processes to make software teams safer, faster, and more productive.
Kasper Timm Hansen was on the Rails core team from 2016-2022, is the top 14th contributor, authored major features and reviewed & merged thousands of contributor pull requests. These days Kasper’s focus is on helping teams upskill, as well as Domain Modeling for Rails apps — including inventing the riffing technique to do so. Kasper still pushes Rails forward with gems like Oaken, ActiveRecord::AssociatedObject, ActiveJob::Performs, and ActionController::StashedRedirects.
Sam Stephenson is a veteran Rubyist and member of the original Rails core team. He created Prototype.js, the Pow development server, and rbenv and ruby-build to manage Ruby versions. Later, he led development of the Trix rich text editor and Stimulus Javascript framework. He also invented the technology behind Turbo and Hotwire Native. In 2024, Sam released N₁₀, a Mac app to help people stay focused on short-term goals while they work. He lives in Mexico City where he likes to feed the squirrels.
David Rodríguez is the number one contributor to Bundler & RubyGems, and was primary maintainer from 2018 to 2025. During this time, he fixed many longstanding bugs, migrated to to a state-of-the-art resolver, and brought a fast release cadence to the projects, managing the release of more than a hundred versions. He has also worked on the Dependabot system at GitHub, helping everyone keep their dependencies secure in dozens of languages. He lives in Madrid, where he is a proud carless but careful person.
Background
We’ve spent collective decades building what you use every day. We’ve served on the core teams helping to steer, guide and move the projects forward. Hell, some of these we’ve even created!