Manuel Calvino

I build AI products. One of them is the engine growing my audience right now.

Receipts

  • 📈 +2,477% LinkedIn impressions in 12 months — 29.3K reach, 15.8K members. The growth came from a Chrome extension I built and used as my distribution. read the case study →
  • 🎯 giffpop — the extension. Drop branded GIFs into any comment thread; every link is owned attribution with a CTA you control. Live on the Chrome Web Store; Pro $3.99/mo. giffpop.com →
  • 📡 Signals — open-source early-warning system for internet momentum. read the writeup →
  • 🎨 High-end website design — I also design and build premium sites end-to-end. happypayusa.com →
  • 🚪 Builders Room — the room where generalist engineers ship AI in public, with receipts. Opening 2026-06. Subscribe to the newsletter and the invite lands in your welcome email. subscribe →

Lanes

  • ⚡ Building agent systems on Claude Code, Ollama, and the Chinese open-source model stack
  • 🧠 Writing the playbook for builders running AI-driven growth experiments in public
  • 🏗️ Shipping professionally since 2012 — crypto, logistics, compliance. Hundreds of thousands of users across mobile, web, desktop.

Channels

Contact

🌴 Based in Miami. Working English-global.