Skip to main content
Test Double company logo
Services
Services Overview
Holistic software investment consulting
Software Delivery
Accelerate quality software development
Product Management
Launch modern product orgs
Legacy Modernization
Renovate legacy software systems
DevOps
Scale infrastructure smoothly
Upgrade Rails
Update Rails versions seamlessly
Technical Recruitment
Build tech & product teams
Technical Assessments
Uncover root causes & improvements
Case Studies
Solutions
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
What's a test double?
Approach
Meeting you where you are
Founder's Story
The origin of our mission
Culture
Culture & Careers
Double Agents decoded
Great Causes
Great code for great causes
EDI
Equity, diversity & inclusion
Insights
All Insights
Hot takes and tips for all things software
Leadership
Bold opinions and insights for tech leaders
Developer
Essential coding tutorials and tools
Product Manager
Practical advice for real-world challenges
Say Hello
Test Double logo
Menu
Services
BackGrid of dots icon
Services Overview
Holistic software investment consulting
Software Delivery
Accelerate quality software development
Product Management
Launch modern product orgs
Legacy Modernization
Renovate legacy software systems
Cycle icon
DevOps
Scale infrastructure smoothly
Upgrade Rails
Update Rails versions seamlessly
Technical Recruitment
Build tech & product teams
Technical Assessments
Uncover root causes & improvements
Case Studies
Solutions
Solutions
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
Insights
Insights
All Insights
Hot takes and tips for all things software
Leadership
Bold opinions and insights for tech leaders
Developer
Essential coding tutorials and tools
Product Manager
Practical advice for real-world challenges
Say hello

Insights for great software & great teams

How-to guides, tooling tips and real-world advice for developers and product managers tired of broken software. Let’s fix this mess together.

Sign up and get insights delivered to your inbox.

How-to guides, tooling tips and real-world advice for developers and product managers tired of broken software. Let’s fix this mess together.

Want to talk shop or tackle a problem in real time? Unpack it with a developer or product manager.

Get our newsletter
Grab time now
Rubber duck holding a caution sign with a snake outline
Developers
Developers
Developers
Pydantically perfect: A beginner’s guide to Pydantic for Python type safety

Introducing Pydantic, a powerful library for type-safe data models in Python. Let’s go through the creation of a simple Pydantic model and the benefits provided.

Gabriel Côté-Carrier
Gabriel Côté-Carrier
Software tooling & tips
A boy stands in front of a circa 2000 PC
Developers
Developers
Developers
C# and .NET tools and libraries for the modern developer
Patrick Coakley
Patrick Coakley
Software tooling & tips
Three people prepare to embark on a journey, holding a compass, map, and binoculars
Leadership
Leadership
Leadership
Turning observability into a team strength without a big overhaul
Gabriel Côté-Carrier
Gabriel Côté-Carrier
Legacy modernization
Two people discuss a pull request review
Developers
Developers
Developers
Why I actually enjoy PR reviews (and you should, too)
Robert Komaromi
Robert Komaromi
Software tooling & tips
All Categories
Click to select
Clear SElection
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Test Double short-form logo against a green background

Double Takes

+ Expand posts
- Collapse POSTS
Test Double short-form logo against a green background

Double Takes

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

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
Setting up a new Mac for development
Developers
Developers
Developers
Setting up a new Mac for development
Holding onto an ancient macOS install because you're afraid of the hassle of setting everything up again? This video walks you through setting up a Mac from scratch, complete with lots of thoughtful configuration and developer automation.
Justin Searls
Justin Searls
Software tooling & tips
productivity
Developers
Developers
Developers
Security strategies for developers: practical tips on misuse stories
Discover how simple security practices like Misuse Stories can make your development process more secure and efficient.
Keith McCanless
Keith McCanless
DevOps & security
security
agile
testing
regulatory-compliance
Debugging React routing
Developers
Developers
Developers
Debugging React routing
Live-coding screencast where Tommy Groshong debugs some annoying client-side routing edge cases and user experience problems in a React application using React Router.
Tommy Groshong
Tommy Groshong
Software tooling & tips
javascript
react
conference-talk
api
Developers
Developers
Developers
Transform project management with Shape Up
Discover how Shape Up and TDD revolutionize project management with iterative cycles, improving team trust, feedback, and software quality.
Brittany Moore
Brittany Moore
Accelerate quality software
agile
communication
Developers
Developers
Developers
Speed up your Rails app with upsert_all
The new upsert_all method in Rails can optimize your app's performance by reducing unnecessary database queries. Learn how to implement it in your projects today!
Justin Searls
Justin Searls
Accelerate quality software
rails
ruby
postgres
Developers
Developers
Developers
Best command-line tools, according to our software consultants
Uncover the favorite command-line tools of top software developer. From Homebrew to tldr and ripgrep, these tools will transform your workflow.
Kyle Adams
Kyle Adams
Software tooling & tips
postgres
Developers
Developers
Developers
Simplify CRUD in Elixir with EctoResource
Check out how EctoResource transforms CRUD operations in Elixir, making coding cleaner and more efficient. Dive in now!
Dayton Nolan
Dayton Nolan
Software tooling & tips
elixir
phoenix
Remote work decoded: Surprising truths and solid strategies for your team
Dive into expert strategies for remote work success! From setting boundaries to enhancing communication, learn how to make remote work effective for you and your team.
Justin Searls
Justin Searls
Communication & teams
teams
communication
remote-work
Previous
Load more posts
33 / 45
Letter art spelling out NEAT

You're N.E.A.T.!

Technology is a means to an end: answers to very human questions. We want to connect with other folks who share that belief.

Ways to connect
Test Double Executive Leadership Team

Learn about our team

Like what we have to say about building great software and great teams?

Get to know us
Rubber duck with Rubik's cube
Test Double double agents at retreat
Test Double double agents at retreat
Test Double rubber ducks and stickers
Test Double double agents at retreat
A keyboard, glasses, test double logo and rubber duckies.
Two test double employees wearing test double t-shirts embrace and smile at the camera.
Two people embrace and smile at the camera at a group event.
A person laughs at the camera in a group setting with a group of people.
Test double rubber duckie in a pool.
Rubber duck with Rubik's cube
Test Double double agents at retreat
Test Double double agents at retreat
Test Double rubber ducks and stickers
Test Double double agents at retreat
A keyboard, glasses, test double logo and rubber duckies.
Two test double employees wearing test double t-shirts embrace and smile at the camera.
Two people embrace and smile at the camera at a group event.
A person laughs at the camera in a group setting with a group of people.
Test double rubber duckie in a pool.
Rubber duck with Rubik's cube
Test Double double agents at retreat
Test Double double agents at retreat
Test Double rubber ducks and stickers
Test Double double agents at retreat
A keyboard, glasses, test double logo and rubber duckies.
Two test double employees wearing test double t-shirts embrace and smile at the camera.
Two people embrace and smile at the camera at a group event.
A person laughs at the camera in a group setting with a group of people.
Test double rubber duckie in a pool.

Let’s collaborate

We’re the team on a mission to improve how the world builds software.

Let’s talk about how to tackle hard software investment problems across the entire product life cycle.

Get started
Calendar icon

Chat with our team

Test Double Office Hours

Curious about what we're like to work with? We offer 30-minute turbocharged office hours with no strings attached—just pure, unadulterated brainstorm power.

Learn more
Test Double company logo
Improving the way the world builds software.
What we do
Services OverviewSoftware DeliveryProduct ManagementLegacy ModernizationDevOpsUpgrade RailsTechnical RecruitmentTechnical Assessments
Who WE ARE
About UsCulture & CareersGreat CausesEDIOur TeamContact UsNews & AwardsN.E.A.T.
Resources
Case StudiesAll InsightsLeadership InsightsDeveloper InsightsProduct InsightsPairing & Office Hours
NEWSLETTER
Sign up hear about our latest innovations.
Your email has been added!
Oops! Something went wrong while submitting the form.
Standard Ruby badge
614.349.4279hello@testdouble.com
Privacy Policy
© 2020 Test Double. All Rights Reserved.