Limni

13 lessons × 30 min, real cases with real numbers, no subscription. Hand-written by the developer. New course every few weeks.

Limni is interactive AI courses for the curious — built for people who want depth without academic stiffness.

Each course is 13 lessons of about 30 minutes, with real-world cases (real companies, real numbers), embedded quizzes, predictions, and case studies. Lifetime purchase. No subscription.

EIGHT COURSES AT LAUNCH

For product managers and technical professionals ($1.99 each): • MCP — Why AI Needed a Protocol, Not Another API • OpenAI Agents SDK — Handoffs, Guardrails, and the Shape of Official Agent Tooling • LangGraph — The Bet on Stateful Orchestration • Hermes vs OpenClaw — Two Paths to a Personal AI

For curious general readers ($0.99 each): • Write prompts that get the answer you wanted — the durable craft • Pick one — Claude vs ChatGPT vs Gemini vs DeepSeek (honestly) • Make a real photo with Nano Banana — the durable craft • Video prompt engineering — Sora 2 sunset edition (and what survives)

Or get the all-access bundle: every course at a discount, with pricing that auto-adjusts to what you already own.

EVERY LESSON INCLUDES

• A working thesis the author defends, not just summary • 4–6 chapters of structured argument with a clear ramp • Predictions before answers — calibrate your gut before the lesson tells you • Real cases with named companies, real numbers, and honest "this is composite" notes where it isn't verifiable • Five interactive moves: quizzes, drag-drop matches, group-chat dialogs, message-flow walkthroughs, case studies • A metaphor per chapter that makes the idea stick

WHAT MAKES LIMNI DIFFERENT

• Lifetime ownership — buy once, keep forever. No subscription tax. • Honest voice — the author argues a position, then defends it. You'll know if you agree or disagree. • Fixed cases over generated examples — when a case is composite, we say so. • On-device, private — no accounts, no email, no tracking, no servers. Your reading progress lives only on your phone. • Free first lesson — sample lesson 1 of any course before you decide to unlock the rest.

WHO IT'S FOR

• PMs and technical builders who want a working frame on a project worth understanding • Curious adults who want to actually learn AI craft, not just "stay current" • Indie taste — readers who buy at $0.99–$1.99 because they appreciate the craft

WHO IT'S NOT FOR

• Anyone wanting auto-generated content or AI-generated "courses" • Subscribers — Limni is pay-once • People who want certifications, badges, or homework checks

NEW COURSES SHIP EVERY FEW WEEKS

The developer ships courses on their own schedule. Restore Purchases brings everything you bought back to any device signed into the same Apple ID.