Uploaded June 2026 | Updated September 2026, 2 days ago
Maddox built duckmath.org from his dorm, scaled it from 5K to 150K daily active users in 4 months, and sold it for $120,000.
The wild part? The stack is dead simple:
Cloudflare for hosting + domains + static DB (free)
Supabase for backend, auth, user data ($20/mo)
PostHog for analytics + A/B testing ($50K in free startup credits)
Google AdSense for monetization (free)
Repurpose.io to auto cross-post ($30/mo)
React on the frontend, vibe-coded with AI
Discord (7K members) for community
He barely touched the code after AI hit. All the leverage went into volume: 3 TikTok accounts, 3 posts a day, 5 days a week.
Maddox built duckmath.org from his dorm, scaled it from 5K to 150K daily active users in 4 months, and sold it for $120,000.
The wild part? The stack is dead simple:
Cloudflare for hosting + domains + static DB (free)
Supabase for backend, auth, user data ($20/mo)
PostHog for analytics + A/B testing ($50K in free startup credits)
Google AdSense for monetization (free)
Repurpose.io to auto cross-post ($30/mo)
React on the frontend, vibe-coded with AI
Discord (7K members) for community
He barely touched the code after AI hit. All the leverage went into volume: 3 TikTok accounts, 3 posts a day, 5 days a week.
