Manuel Calvino

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

Get the build, not the buzz.

I document the whole stack — the dispatcher, the local-model router that cut my escalation costs to almost nothing, the signing layer. Drop your email and the breakdown lands in your inbox.

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 →
  • 📚 AI Book Generator — write a complete, structured book with AI, end to end. Live product, paying users. aibookgenerator.org →
  • 📡 Signals — open-source early-warning system for internet momentum. read the writeup →
  • 🥚 The smallest model wins — a free, all-local web-research harness where a 2 GB model beats an 8B at 3× the speed (36/41 on a frozen eval). Intelligence in the harness, not the weights. read the build log → · github →
  • 🎨 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.