All lessons
# How to Test a Web App *This picks up exactly where [How to Code a Web App](/p/how-to-code-a-web-app) leaves off — a service running locally (and on its early, unindexed preview URL), a login that w…
# How to Code a Web App *This picks up exactly where [How to Green-Light a Build](/p/how-to-green-light-a-build) leaves off — decision made, GO on the record. This lesson covers turning that decision…
# How to Green-Light a Build *This is the last gate before real application code exists. Everything upstream — brief, brandbook, mockup, spec, competitive analysis — is now "done." This lesson is the…
# How to Analyze Competitors *Short version lives on the project dashboard as a three-line strategic note. This is the long version — the working document the note is derived from. If you only skim o…
# How to Write a Spec ## TL;DR A SPEC.md is the document that translates an approved mockup into something buildable: routing architecture, a real data model written as actual type definitions, a se…
# How to Build an HTML Mockup ## TL;DR An HTML mockup is the cheapest artifact you will ever get to change. Before any real application code exists, build one self-contained interactive HTML file — …
# How to Make a Brandbook ## TL;DR (thesis up front, before the details) A brandbook is not one document written in one pass — it's a checklist assembled from three inputs you cross-reference agains…
# How to Write a Brief ## TL;DR (thesis up front, before we get into details) A brief is not a task summary. A brief is a **contract on decisions** — a document that closes settled matters, explicit…