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Services Overview
Holistic software investment consulting
Software Delivery
Accelerate quality software development
Product Management
Launch modern product orgs
Legacy Modernization
Renovate legacy software systems
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DevOps
Scale infrastructure smoothly
Upgrade Rails
Update Rails versions seamlessly
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Build tech & product teams
Technical Assessments
Uncover root causes & improvements
Case Studies
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Accelerate Quality Software
Software Delivery, DevOps, & Product Delivery
Maximize Software Investments
Product Performance, Product Scaling, & Technical Assessments
Future-Proof Innovative Software
Legacy Modernization, Product Transformation, Upgrade Rails, Technical Recruitment
About
About
About
What's a test double?
Approach
Meeting you where you are
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The origin of our mission
Culture
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Culture & Careers
Double Agents decoded
Great Causes
Great code for great causes
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Equity, diversity & inclusion
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Hot takes and tips for all things software
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Bold opinions and insights for tech leaders
Developer
Essential coding tutorials and tools
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Developers
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C# and .NET tools and libraries for the modern developer

C# has a reputation for being used in legacy projects and is not often talked about related to startups or other new business ventures. This article aims to break a few of the myths about .NET and C# and discuss how it has evolved to be a great fit for almost any kind of software.

Patrick Coakley
Patrick Coakley
Software tooling & tips
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Leadership
Leadership
Leadership
Turning observability into a team strength without a big overhaul
Gabriel Côté-Carrier
Gabriel Côté-Carrier
Legacy modernization
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Developers
Developers
Developers
Why I actually enjoy PR reviews (and you should, too)
Robert Komaromi
Robert Komaromi
Software tooling & tips
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Developers
Developers
Developers
Build with HTMX: Simplify development with a return to fundamentals
Dave Mosher
Dave Mosher
Software tooling & tips
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Double Takes

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Double Takes

Whenever this kind of thing happens, the biggest mindset shift is not going from single tool to platform (though that's useful to translate to business use cases), it's what happens when you realize there's an entire ecosystem at play here. 🤯

Cathy Colliver

TIL you can use redirect.github.com in links to avoid a back reference being created on github from commits, comments, PRs, etc.

Jason Karns

Test-driven development is to programming what double-entry bookkeeping is to accounting.

Neal Lindsay

The fundamental character flaw of the software creator is not the misguided belief that they can solve any problem with software. Instead, it is the belief they can understand how their own software works before they create it.

Steve Jackson

We may need a SaaS appendix for Zawinski's law:

Any SaaS platform attempts to expand until it is a social network.
Matt Jones

Wow, 1 month for a rewrite seems a little aggressive.

Dustin Tinney
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Developers
Developers
Developers
What is a Meta Programmer?
What's it mean for a founder to go back to being an individual contributor at their own company? Justin Searls is about to find out!
Justin Searls
Justin Searls
Accelerate quality software
agile
communication
productivity
professional-growth
Leadership
Leadership
Leadership
The Test Double way: how we create great software and even better teams
Learn about Test Double's unique approach to software development, where shared values and a commitment to continuous improvement create great software and exceptional teams.
Cathy Colliver
Cathy Colliver
Accelerate quality software
teams
communication
Developers
Developers
Developers
Why you need the new Standard Ruby VS Code extension
Explore how the latest VS Code Ruby extensions can make your coding faster and more enjoyable. Perfect for Ruby developers looking to boost productivity!
Justin Searls
Justin Searls
Accelerate quality software
ruby
testing
standard-ruby
It's literally impossible to learn everything there is to learn about programming. And there's no need to.
Developers
Developers
Developers
Sustainable Learning
Josh Justice shares an approach to learning that he stumbled upon to avoid mistakes that may be hindering your learning, make the flow of information manageable, solidify your skills, and feel motivated all along the way.
Josh Justice
Josh Justice
Recruiting & careers
agile
professional-growth
Caution sign
Developers
Developers
Developers
Get safer TypeScript code with Zod: a practical guide
Discover the power of Zod in validating TypeScript schemas, making your code more robust and error-free. Perfect for developers looking to improve their TypeScript skills.
Joseph Lozano
Joseph Lozano
Software tooling & tips
typescript
Illustration showing one person's head is full of jumbled up lines, and the other person's head is full of stars and neat circles
Developers
Developers
Developers
How to safely improve your database schema
Ever thought of tweaking your database without halting operations? Dive into our guide on making non-disruptive schema changes effectively.
Justin Schoen
Justin Schoen
Software tooling & tips
agile
Developers
Developers
Developers
Super Standard: How to add gem extensions and custom rules to Standard Ruby
Discover how the new extend_config option in Ruby Standard 1.22.1 allows you to tailor your code formatting to fit your team's needs, reducing debates and boosting productivity.
Justin Searls
Justin Searls
Accelerate quality software
ruby
testing
open-source
standard-ruby
Toy robotwe
Developers
Developers
Developers
Dual booting a Rails upgrade with Docker and CI
Bootboot is a great tool for dual booting your Rails upgrade, but it doesn't play well with deployment environments running Rails 4.x. In this blog post we'll show you how you can leverage Docker to effectively get Bootboot to work in these environments.
Ali Ibrahim
Ali Ibrahim
Rails upgrades
rails
docker
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