We make Rails applications perform.

Faster Ruby & Rails applications

• Optimize application boot times, shrinking the development feedback loop to make everyday work faster
• Profile and target inefficient database queries, finding optimal indexes, schema adjustments, and other improvements
• Reduce memory and CPU usage to deliver faster responses, with fewer outliers
• Scale your app to 10x or 100x by systematically finding and resolving bottlenecks
• Provide the plugins, extensions, and libraries to solve problems quickly, without rebuilding the world from scratch
• Work with your team to offer documentation, training, and workshops on performance gotchas and patterns for speed

Faster development cycles

• Speed up CI and testing configuration, to deliver results faster and with higher confidence in what your team has built
• Build faster CD and deployment automation, to get code into production more frequently, and more reliably
• Analyze development cycle time, optimizing the entire process from request to PR to going live in production
• Design partnership on developer tooling, ensuring the tools we create and maintain address the needs of your developers
• Fully custom development tools, processes, and documentation to multiply your engineering team’s work output

For less than the cost of one fully-loaded engineer, we can start multiplying the output of every engineer on your team. Email us to get started today.

Our background

Our team has spent years building the tools you use every day, and either created or has been on the core team of the open source projects behind every Ruby business:

• rails, the Ruby web application framework
• hotwire (turbo + stimulus), the default front-end framework for Rails
• hotwire native, a web-first framework for building native mobile apps
• trix, the rich-text WYSIWYG content editor for Rails
• kredis, higher-level data structures built on redis
• rbenv + ruby-build, the original Ruby version management tools
• rubygems, the Ruby standard library package manager
• bundler, the Ruby standard library dependency manager
• rubygems.org, the Ruby language package registry

Our newest tool is rv, the next-generation Ruby version and project manager.

Our 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.