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

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

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Line drawing of a rocky mountain peak with a base camp and people building structures

Quality you can’t generate: AI is only as good as your constraints

AI changed the cost structure of software. It didn't change the value structure. The value is no longer the code you write. It's the taste, judgment, and constraints you encode into the system that shapes what AI produces.

Dave Mosher

A figure looks off towards the horizon. On the left is a giant robot, on the right a splash of vibrant color, connected nodes and a city unfurl.

Why we're not chasing the AI hype (And what we're doing instead)

Todd Kaufman

Speed is a side effect of making the system work

Doc Norton

Maximize software investment

Rubber duck in fedora and trench coat stands next to a vintage microphone

IndyPy Talk: Pydantically perfect in every way

Kyle Adams

Software tooling & tips

Double Takes

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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

going to eleven

How we prepared for 200,000 users: Lessons from a real-world product launch

Load testing with locust to prepare for a large-scale product launch. Learn about evolving an architecture to handle heavy loads and external dependencies.

Steve Jackson

architecture

aws

testing

devops

greenfield-product-development

Build shared understanding

Better software through shared understanding

Avoid tool lock-in. Build shared understanding through examples and pick tools that match the maturity of your software project.

Steve Jackson

Communication & teams

communication

teams

conference-talk

developer-experience

How to program

Justin Searls explored a strange problem about programming in his RailsConf 2017 keynote: we don't have very evolved ways to convey clearly the details of the countless actions, feelings, and thoughts that go into writing software.

Justin Searls

Accelerate quality software

productivity

testing

conference-talk

Master accessibility techniques for better app navigation

Unlock the power of accessibility techniques to ensure all users, including those with disabilities, can navigate your app effortlessly. From keyboard navigation to ARIA landmarks, we've got you covered!

Sam Jones

Equity, Diversity & Inclusion

a11y

ux-ui

testing

accessibility

Makefiles made easy: Key tips for beginners

A simple guide to Makefiles to make your development smoother and more approachable. Perfect for beginners!

Dave Mosher

Software tooling & tips

automation

Accessibility is usability

Discover how following accessibility guidelines can remove barriers and improve the experience for all users, not just those with disabilities.

Sam Jones

Equity, Diversity & Inclusion

a11y

testing

accessibility

testdouble.js 2.0: your new go-to for JavaScript testing

Check out the latest release of testdouble.js 2.0! Packed with new features and improvements, it's designed to make JavaScript unit testing smoother and more effective.

Justin Searls

testing

java

javascript

teams

open-source

Large and in charge: Using Git LFS for large projects

Explore why Git Large File Storage (Git LFS) is critical for handling large files in your projects and how it enhances your version control strategy.

Michael Schoonmaker

Michael Schoonmaker

DevOps & security

architecture

docker

rails

infrastructure

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

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