Expedition — Giovanni Gyorody

Overview

Production-grade mobile app.
Zero prior experience.

Expedition is a squad-based commitment architecture mobile application. I founded and built it as the sole technical and product decision-maker — architecting the full system from zero with no prior coding experience, owning every layer from cloud infrastructure to 3D rendering engine.

The product operates on a core mechanical principle: collective consequence. Every habit completed moves your avatar forward on a shared trail. Every stumble extends the squad's biome completion time. The campfire only lights when everyone arrives.

24Days to ship v1

0Prior coding experience

100%Data integrity across all mutation paths

FullStack ownership — infra to rendering

The Problem

Accountability without consequence
is just encouragement.

Existing habit apps are built around the individual. Streaks, check-ins, reminders — all private, all personal, all consequence-free. The result is that quitting is costless. No one knows. Nothing changes.

Expedition is built on the opposite premise: structural, social accountability made visual and consequential. Your squad sees everything. Your stumbles affect everyone. The world your group shares reflects the truth of how everyone is actually doing.

Technical Execution

Every layer, from scratch.

3D Rendering Pipeline: Identified and resolved critical performance bottlenecks in a real-time 3D rendering pipeline on mobile hardware. Hand-tuned geometry, occlusion culling, and per-frame timing to achieve stable output under strict hardware constraints with no postprocessing layer available.

Backend Architecture: Architected a hardened Supabase backend to stringent security standards — implementing JWT identity verification and rate limiting to prevent abuse. Engineered idempotency guards and atomic database operations across all mutation paths to ensure 100% data integrity.

Product Architecture: Sole technical and product decision-maker across the entire system. Every UX decision, every infrastructure call, every performance trade-off — made and executed alone.

App screenshot — add img/expedition-screen.jpg