Video Library

Project-based video training & tutorials for building with AI.
I want to like Google Antigravity, but...
I was genuinely excited about Google Antigravity's fresh ideas for the agentic IDE—multi-project management, multi-agent orchestration, and that clever screen recording review process. But when I actually tried to build with it... Well, you'll see...
New
The Builder Method
The Builder Method is the process-oriented framework that guides everything in Builder Methods Pro—from design through build to refinement. This video establishes the mental model for working productively with AI while keeping your creativity and craft at the center.
New
Pro
Using Claude GitHub Actions as a cloud coding agent
Here's a great way to tackle your backlog of GitHub issues by simply mentioning Claude in your GitHub comments. Watch me do this on the builder methods site using the Claude GitHub actions integration.
New
Pro
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...
New
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.
Pro
Agent OS v2 Demo
Agent OS v2 is here: It's my free, open-source system that trains your AI coding agents to build like YOU—with ANY AI tool (Claude Code, Cursor, Codex, Gemini, or any other). This is the official demo, walkthrough and overview of what's new in Agent OS V2.
Implementing Member Profiles and Enhancements
In this video, I walk through the implementation of a complex member profile feature for our platform, which includes user-generated usernames, experiences, and interests. After testing, I encountered some issues, particularly with the display and functionality of these features, which I addressed with the help of AI. I also made...
Pro
Member Profiles: Design & spec for this new feature
In this video, I’m excited to kick off the development of a new feature for Builder Methods Pro: member profiles. This feature will allow pro members to create and publish their own profile pages, showcasing their expertise, interests, and contact information, while being visible only to other members. I walk...
Pro
Spec-Driven Development in the Real World
The industry is converging on spec-driven development as the professional way to build with AI, but most tools are missing 3 critical aspects that make it actually work in the real world. I'll show you what's missing from most tools, plus how I solve these gaps with Agent OS to...
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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