The app walks you through 5 phases: brainstorm with AI, generate outline, develop characters, write chapters (AI maintains consistency across 50k+ words), then export to PDF/EPUB or publish to a bookstore.

It's local-first (SQLite, your data stays on your machine) and uses Google Gemini for generation. Users bring their own API key.

I'm genuinely stuck on monetization:

1. One-time purchase ($49-99?) - user brings own Gemini key 2. Free app + platform fee to publish on our bookstore 3. Free app + transaction fee on book sales 4. Subscription with included AI credits

Context: I'm a 25-year dev who's shipped ~15 side projects in the last 2 years thanks to AI productivity gains. This one feels like it has legs, but I keep second-guessing the business model.

For those who've monetized creative tools: what worked? What didn't?