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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

CSS: the visual state machine

Thinking of web applications in terms of state machines is not a new idea, but there is an often overlooked area when it comes to managing state in web applications: the visual or presentation layer.

Dave Mosher

Software tooling & tips

api

javascript

teams

accessibility

conference-talk

Product managers

Product managers

Product managers

How to run effective retrospectives for agile teams

Learn how to run effective retrospectives for your agile team with this comprehensive guide, promoting open communication and continuous improvement.

Brittany Moore

Communication & teams

agile

consulting

teams

communication

A practical guide to AWS Lambda and serverless

With all the hype around serverless, it’s hard to separate value from marketing fluff. Dive into the "Serverless Manifesto" and see if AWS Lambda truly benefits your needs.

Micah Adams

DevOps & security

aws

cloud

testing

Growing strong without the burnout in consulting

Dive into a consultant’s journey of learning and growth. Discover how to tackle challenges without succumbing to burnout in the fast-paced world of consulting.

Mike Jansen

Recruiting & careers

communication

professional-growth

consulting

Things I wish I knew before going remote

Things I wish I knew before going remote

In this RailsConf 2019 talk Marla Brizel Zeschin shares hard learned lessons on better collaboration while working remote that are even more relevant today as remote work is more common.

Marla Brizel Zeschin

Marla Brizel Zeschin

Communication & teams

communication

testing

rails

teams

Designing an interview process that works

Ever felt lost in a tech interview? At Test Double, we make interviews meaningful and relevant. Dive into how our process respects your time and skills.

Ilana Corson

Recruiting & careers

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Interview them where they are

Interview them where they are: Master the art of conducting technical interviews

Discover effective techniques to conduct technical interviews, focused on inclusivity and identifying essential software engineering skills.

Eric Weinstein

Recruiting & careers

professional-growth

Optimize Rails enums with Postgres: A guide

Struggling with Rails enums? Discover how PostgreSQL can simplify your enums and enhance performance. This guide covers setup, migration, and best practices.

Justin Searls

Accelerate quality software

testing

ruby

rails

postgres

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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