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Services Overview
Holistic software investment consulting
Software Delivery
Accelerate quality software development
Product Impact
Drive results that matter
Legacy Modernization
Renovate legacy software systems
Pragmatic AI
Solve business problems without hype
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DevOps
Scale infrastructure smoothly
Upgrade Rails
Update Rails versions seamlessly
Technical Recruitment
Build tech & product teams
Technical & Product 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
Founder's Story
The origin of our mission
Culture
Culture
Culture & Careers
Double Agents decoded
Great Causes
Great code for great causes
EDI
Equity, diversity & inclusion
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Insights
All Insights
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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Practical advice for real-world challenges
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Developers
Developers
Developers
Anyone can code: Software Is having Its Ratatouille moment

Gusteau said it best: "anyone can cook", and now, "anyone can code." LLMs and agentic coding are the Remy to our Linguini. Our job isn't to guard the kitchen—it's to help others cook something worth serving.

Dave Mosher
Dave Mosher
Future-proof innovative software
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Developers
Developers
Developers
Power up scripts for Rails apps Part 3: Kubernetes
Ed Toro
Ed Toro
Software tooling & tips
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Developers
Developers
Developers
Power up with Rails scripts Part 2: Docker
Ed Toro
Ed Toro
Software tooling & tips
Rubber duck wearing a trench coat and fedora next to a mushroom
Developers
Developers
Developers
Power up with Rails scripts Part 1: Environment setup
Ed Toro
Ed Toro
Software tooling & tips
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Double Takes

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Double Takes

Dave Mosher explores using LLMs as digital archivists and resurrects his old GeoCities website. (Remember those!)

Dave Mosher

Davemo shares early experiments with Sora 2: discovered some interesting remix bugs and played around with applying it towards a game idea he's been noodling on.

Dave Mosher

A Slack conversation left Doc reflecting on what bug bashes say about the systems we work in.

Doc Norton

Friday afternoon hot take (after a couple months of engineering exclusively with coding agents):

Context/prompting is a crutch that will only get you so far.

The AI agent does not have a true understanding of both:

  • The business logic that the code it is generating represents
  • The wider system(s) that it is being written to run within

IOW the why of the code.

The result is that no matter how hard you try it is not able to consistently apply rules and/or conventions (eg: logically organizing/co-locating code).

Tom Nightingale

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
Complicated Rube Goldberg type device
Developers
Developers
Developers
Building a linkblog with Hugo, Tailwind and Netlify
Overview of one way to organize a personal blog to enable very low-friction publishing, using Hugo, Tailwind, and Netlify (plus NetlifyCMS).
Justin Searls
Justin Searls
Software tooling & tips
infrastructure
agile
open-source
An arrow runs through a tangled knot
Developers
Developers
Developers
Building robust apps with Phoenix LiveView and no JavaScript
Learn how to use Phoenix LiveView to create robust applications without writing any JavaScript. Discover tips and tricks for efficient development.
Jeremy Neal
Jeremy Neal
Software tooling & tips
elixir
javascript
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Developers
Developers
Developers
Ignore RuboCop changes in Git Blame
Hide refactoring commits in git-blame by using .git-blame-ignore-revs
Caleb Hearth
Caleb Hearth
Software tooling & tips
automation
ruby
testing
Developers
Developers
Developers
S.O.S.(F).: Save Our Submittable (Forms)
Dive into the real-world challenges of form development in React. It's not just about coding—it's about creating experiences!
Daniel Huss
Daniel Huss
Software tooling & tips
react
javascript
node.js
ux-ui
Developers
Developers
Developers
A guide to effective software consulting
Dive into the world of software consulting with firsthand insights on what makes a successful consultant. Learn from the pros at Test Double.
Nichol Alexander
Nichol Alexander
Accelerate quality software
consulting
communication
teams
professional-growth
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Developers
Developers
Developers
A lesson in type safety with TypeScript, Remix and Prisma
Learn from real-world coding experiments with TypeScript, Remix, and Prisma. Discover how to avoid common pitfalls and improve your type safety skills.
Joseph Lozano
Joseph Lozano
Software tooling & tips
typescript
Double Agent Profile: Eric Newbury
Eric Newbury
Eric Newbury
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Developers
Developers
Developers
How to balance software architecture goals with limited resources
Dive into how smart resource management can transform your software architecture without breaking the bank. Join us for a journey through strategic planning and agile execution.
Eve Ragins
Eve Ragins
Maximize software investment
architecture
agile
budgeting
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