My self-hosting setup on Hetzner CPX42: Docker, FastMCP, nginx routing, Telegram bot. When self-hosting didn’t pay off in my case (honest self-criticism). Experience report, no promises about your costs.

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What’s included

Every purchase delivers the book in 4 versions, all in one ZIP:

• German textbook (human-readable, full prose)
• English textbook (human-readable, idiomatic US/UK English)
• AI-DE injection (compressed for loading into your German AI — CLAUDE.md, skill, memory)
• AI-EN injection (compressed for loading into your English AI — CLAUDE.md, skill, memory)

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Heads up: this is a digital download. The moment you click “Buy”, you get instant access to the ZIP. That means no refunds — same as buying a license key.

If something’s broken on our side, message us right here in Whop (Support tab in your member area) — we’ll fix it within 24h. Otherwise, all sales are final.

(EU buyers: by purchasing you waive your 14-day right of withdrawal under Art. 16(m) Consumer Rights Directive / §356 V BGB.)