Foundations
Create an AI Operating System
Build the plain-file system of folders, scripts, and workflows that runs the work a whole team used to handle.
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Learn all things AI
Go From Zero To Building Real AI Systems
SectionZero.AI is where you learn to actually use AI, not just chat with it. Practical online courses, free tutorials, and videos that teach you to build AI-powered workflows you own.
Course library
Courses that teach you to build
Each course walks you through a real, working piece of an AI system. Start anywhere, or work through them in order.
Core concept
Portable Intelligence
Structure your AI knowledge so it's never locked to a single model or tool. You own the system; the model is swappable.
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Models
Swapping Brains in AI-OS
Swap different AI models into your operating system: Claude today, OpenAI Codex tomorrow, whatever comes next.
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Memory
Adding Memory to AI-OS
Add markdown memory you can read and edit, plus a database-backed memory layer for structured logs and records.
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Quality
Humanizing & Fact-Checking AI-OS
Strip out the obvious AI tells that make writing sound fake, and fact-check AI-written work before it ships.
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Research
Knowledge Graph AI Wikis
Turn any topic you study into a structured, linkable knowledge base that you and your AI can both navigate.
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Workflows
Build Workflows From Wikis
Turn the AI wikis you've built into repeatable workflows your AI Operating System can actually run.
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Principles
The 60-30-10 AI Rule
The operating principle behind every workflow: 60% repeatable code, 30% memory, 10% AI. Learn the structure around the model.
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Monetize
Creating Digital Products With AI
Build a portfolio of digital products with AI that you can sell online 24/7 on marketplaces like Gumroad.
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Free to learn
Free tutorials & YouTube videos
Not ready for a full course? Start with the free written tutorials and video walkthroughs. New ones posted all the time.
About me
I rebuilt my whole business around AI. Now I teach you how.
I've been building in tech for decades, with multiple company exits, millions of students taught at Codemy.com, and a quarter of a million subscriber YouTube audience that grew up watching me explain hard things simply.
When AI arrived, I didn't treat it as one more topic to talk about. I rebuilt my entire operation around it: the research, the editing, the drafts, the workflows, all running through a system I built and own. SectionZero.ai is where I hand that system to you, one practical lesson at a time.
No hype. No magic prompts. Just the real thing, built from scratch, so you can build yours.
- John Elder
Start at zero. Build something real.
Jump into the course library or start with a free tutorial today, and learn AI the way builders actually use it.
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