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Double Takes

TDDing with Claude is like having a pair that removes all the failing assertions every time you go to the bathroom.

Steve Jackson

State machines are the answer for those seeking determinism in the era of AI agents.

Dave Mosher

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

Doc Norton

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

Line chart increasing from left to right

Leadership

How an early-stage startup engineering team improved the bottom line fast

A fast-growing startup was burning cash faster than it could scale. Here’s how smart engineering decisions helped them improve the bottom line.

Jonathon Baugh

Maximize software investment

efficient software

security

outcomes-over-outputs

Developers

End-to-End Testing Auth Flows with Playwright and Next.js

Streamline authentication testing in your Next.js applications, regardless of your auth provider. This practical guide demonstrates how to use Playwright's powerful features to create reusable test helpers, implement efficient session caching, and debug with confidence.

Dave Mosher

Testing

testing

typescript

react

efficient software

Developers

ESOP explained: How employee ownership really works at Test Double

Being 100% employee-owned means every Test Double agent shares in the company’s success. Here’s how our ESOP works and why it matters.

Todd Kaufman

Communication & teams

teams

communication

community

esop

Gauge dial with icons of happy face, arrow, and dollar sign

Leadership

Audentes Fortuna Iuvat: being bold amidst uncertainty

What should businesses do in the face of uncertainty? This is not the first time leaders are dealing with strange economic environments, and it won’t be the last.

Ed Frank

Maximize software investment

budgeting

efficient software

eliminate-waste

outcomes-over-outputs

Rubber duck wearing a trench coat and fedora against a colorful background

Developers

LLMallard: the low-key AI chat bot you secretly need

The most perfect dev workflow for taking advantage of deeply powerful AI tooling that’s hyper efficient on token usage with minimal API calls—and the perfect pair programming partner.

Daniel Huss

Pragmatic AI

ai-ml

communication

developer-experience

productivity

Leadership

Why we coach the system, not just the team

Slow delivery isn’t usually about your people—it’s about your system. Shifting focus to incremental improvements in the system helps change not just processes but behaviors for lasting change.

Doc Norton

Future-proof innovative software

communication

teams

scaling-challenges

consulting

Developers

Developer QA checklist for feature releases

Quality Assurance is a mindset integrated throughout development to catch issues early, build user trust, and reduce maintenance costs. These recommended procedures for dev teams without dedicated QA roles establish collective responsibility for ensuring feature stability, functionality, and usability before release.

Lee Quarella

Software tooling & tips

testing

developer-experience

quality

Two people view flow charts and mechanical fishes overlayed against a landscape backdrop and a compass

Developers

From engineer to consultant: The powerful shift from inward to outward focus

What transforms a skilled software engineer into an exceptional consultant? Approach new codebases with respect rather than judgment, embrace constraints as creative boundaries, and prioritize client needs over personal preferences.

Dave Mosher

Recruiting & careers

communication

consulting

professional-growth

teams

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