I shipped a 147,000-word interactive book as a free SPA — here's the stack

TL;DR — I just shipped The Wanting Mind , a 147,000-word interactive book that reads like Wikipedia + a podcast + a graph. It's free, no signup, all four languages (EN/JA/ZH/TH). The whole thing is a React 19 SPA backed by Supabase, Capacitor for the mobile apps, and a chunk of AI (ElevenLabs for narration, fal.ai for chapter art, Gemini for video, Claude for translation). This post is what worked, what broke, and the stack at the bottom for fellow indie devs. The pitch (60 seconds) It's a long-