Video Library

Project-based video training & tutorials for building with AI.
Cursor 2.0 Changed How I Work
Cursor 2.0 dropped last week, and unlike most recent AI updates, it's actually changed how I work. Two features in particular: Cursor's new Composer model that's 10-50x faster than any other coding model, and parallel agents that finally make running multiple autonomous builds practical. I'll show you Composer building and...
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Claude just launched Skills across all their platforms, and I've spent a week testing the Claude Code implementation specifically. Do Claude Code Skills actually solve problems developers have, or are they better suited for consumer platforms like Claude.ai? I compare Skills to the developer tools we already use...
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Building a PDF Invoice Generator using Cursor 2.0 & Composer
In this video, I show how to build a fully automated PDF invoice system in Rails—from Stripe test data to downloadable invoices—using Cursor 2.0 and their new Composer model.
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Is Codex CLI Worth The Switch (from Claude Code)?
I've been a daily Claude Code user for most of this year but I wanted to give Codex CLI a look, since OpenAI has been making an obvious effort to win back developers.
Solving Claude Code's (Short-Term) Memory Problem using Subagents
Claude Code forgetting things? The key is to manage Claude Code's context window—a.k.a. Context Engineering. This video covers how to be more efficient with your context useage, primarily by marking use of Claude Code's new Subagents feature (game-changer!). You'll also uncover a few hidden gem tips I packed into this one.
Builder Methods

Training & community for pro software developers building with AI.

Created by Brian Casel (that's me). I'm a career software developer, founder, and creator of Builder Methods and Agent OS, the system for spec-driven development with AI.

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