Resources
Go from coder to systems thinker.
solidbook: An Introduction to the World of Software Design & Architecture
Get clarity. Uncover the unknown unknowns and learn the main topics from over the last 40 years of software design, architecture & testing.
Get the book
Testing Mastery
Master the first skill you should have been taught in school: testing. Takes you through the first two Phases of Craftship.
Enroll in TM
The Software Essentialist
Become a confident crafter. Master the 80-20 of testing, design, architecture & strategy to write scalable, testable, flexible and maintainable code on any side of the stack. Takes you through all five Phases of Craftship.
Enroll in TSE
Recent articles, letters & posts
view all
Temporal Decoupling: Why We Use Events & MessagesThe 12 Essentials
What is it about events and event-based architectures that make them work so well?
Tension Seeking Resolution (The Law of Polarity)The Metaphysics
Why does code tend towards chaos and complexity? Why should you write tests? Why bother with design, architecture or strategy at a...
Two Categories of Tests: High Value vs. Typical TestsTesting
It's critical to build a foundational understanding of the different types of tests before investing a ton of time into writing th...
Using Builders to Model Complex Test StatesTesting
Setting up test cases can be extremely challenging. Especially when running E2e tests. In this letter, we learn how to use builder...
How to Improve Legacy Code w/ Characterization TestsTesting
Just like entropy, the natural state of the universe, code has a tendency towards disorder over time. Tests act as a sort of "entr...
The Metaphysical Mental Models: Abstraction & The Feedback LoopThe Metaphysics
The metaphysical mental models describe how we solve problems and bring ideas to life. They are 1) Abstraction, and 2) The Feedbac...
98% of Developers Use React as a Framework, Not a LibraryFrontend
React is a view layer library but most developers use it as a framework. Let's look into why that is and the implications of it.
Is DDD Overrated? | Domain-Driven DesignDomain-Driven Design
DDD is one particular approach to software design. While highly influential and transformational for developers new to software de...
Enforcing Coding Conventions with Husky Pre-commit HooksTooling
In this guide, we'll learn how to setup Husky to prevent bad git commits and enforce code standards in your project.
Domain-Driven GraphQL Schema Design using Event StormingGraphQL
A GraphQL schema is a declarative, self-documenting, organization-wide API. It's pretty important to spend a little bit of time on...
How Apollo REST Data Source Deduplicates and Caches API calls [Deep Dive]GraphQL
Apollo's REST Data Source does a lot more than you'd think behind the scenes, and that's why it's recommended instead of using a w...
How to Setup a TypeScript + Node.js ProjectTypeScript
In this guide, we walk through the process of creating a TypeScript project from scratch with cold-reloading, and scripts for buil...
Where Do Domain Events Get Created? | Domain Driven Design w/ TypeScriptDomain-Driven Design
In this post, I explain how good ol' fashioned encapsulation + TypeScript getters and setters enable us to effectively create Doma...
Join 20000+ value-creating Software Essentialists getting actionable advice on how to master what matters each week. 🖖