Notes & guides
Field posts, experiments, and how-tos — filter by category or tag, or search by title.
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How Big Is the Universe? A Ladder From You to the Edge of Everything
A step-by-step climb from human scale to the observable universe: real numbers, one shrink-it model, and why the edge is further away than the universe is old.
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AI Media Studio: One Prompt Box for Images and Video
I built a small web app that turns a sentence into images and short video clips using Google's Gemini and Veo models. Here's what it does, how it's put together, and what I learned shipping it.
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Jev: A Model That Decides Instead of Talks
TypeSafe AI's Jev doesn't write a single sentence. It returns typed answers with calibrated confidence, in milliseconds, for a fraction of a cent. Here's what it is, what it's for, and where it breaks.
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Making Money with AI: A Realistic Map
What actually pays when you add AI to your skills — services, products, content, automation — what's hype, and how to pick one path you can start this month.
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From Side Project to Micro-Product: Shipping Small Paid Tools with AI
AI coding assistants made building cheap. Selling is still the hard part. How to pick a narrow problem, ship a paid v1 fast, and find the first ten customers.
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Sell the Outcome, Not the Prompt: AI Freelancing and Automation Gigs
How to package AI-assisted work as a service small businesses will pay for: picking an offer, pricing by deliverable, finding the first clients, and not getting burned.
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From ChatGPT to Power User: Replace the Boring Parts of Your Job
A practical guide for people who've only chatted with AI: habits, features, and workflows that actually save time at work.
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Your Prompt Framework Isn't a Spell Anymore
Prompt frameworks like COSTAR still help, but not because they unlock model magic. In 2026, they work best as checklists for context, objective, and response shape.
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The School With No Teachers
42 has no teachers, no lectures, no tuition, and no diploma — and it has grown into 50+ campuses across 30+ countries. Here's how the model works and why it's worth a developer's attention.
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OpenClaw: The Open-Source Agent That Turned Chat Apps Into AI Control Panels
OpenClaw is a self-hosted, open-source AI agent that lives inside the chat apps you already use — WhatsApp, Telegram, Slack, and more. Here's how it works, why it took off, and the security tradeoffs of giving an agent real tool access.
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Cursor After Launch: The Code Editor Starts Talking Back
A backdated field note from shortly after Cursor's early 2023 launch: why putting AI inside the editor feels more important than another chatbot tab.
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ChatGPT After Launch: The Text Box That Made AI Feel Weirdly Normal
A backdated field note from shortly after ChatGPT launched: why the plain chat box mattered, what felt different, and why the interface was the real unlock.
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