Juan Sebastian Martinez Marin

Juan Sebastian Martinez Marin

CEO at MancoMen Studio. Building Nexus
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About

I build systems that model behavior, not just measure it. CEO of MancoMen Software Studio, a software studio based in Bogotá focused on behavioral modeling systems. Currently shipping Nexus: an AI-powered app that maps the causal structure of personal change. Not a habit tracker. It shows you why your patterns break, models how they interact, and simulates where you're headed using AI journaling, causal graphs, and exponential decay. Most wellness apps count, Nexus understands. Always interested in talking to people who think current trackers are fundamentally broken.

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Tastemaker
Tastemaker
Gone streaking
Gone streaking

Maker History

  • Nodeself
    NodeselfThe behavioral mirror. Not a habit tracker.
    May 2026
    • 🎉
    Joined Product HuntApril 25th, 2026

Forums

Juan Sebastian Martinez Marin•

13h ago

Nodeself - The behavioral mirror. Not a habit tracker.

Most habit apps count your streaks. Nexus models why they break. Nexus maps the causal structure of your behavior as a living, interactive graph. Each node - a habit, decision, attitude or state - is connected to others and decays over time when you stop reinforcing it. Silence is data too. Check in through an AI-Powered journal. Nexus analyzes you entires, detects patterns, updates your graph and simulates where you current trajectory leads in 30 or 90 days. No generic advice. No streaks.
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