DEV Weekend Challenge Winners: Earth Day Edition Revealed

The dust has settled, the pull requests are merged, and the winners of the DEV Weekend Challenge: Earth Day Edition have been announced. From carbon footprint calculators to tree-planting gamification apps, the submissions were as diverse as they were passionate. As someone who reviewed dozens of entries and helped guide the judging criteria, I want to share not just who won—but more importantly, why certain projects stood out, and what most developers missed.

Spoiler: It wasn’t just about planting virtual trees.

The Winners (And Why They Won)

🥇 Grand Prize: "EcoTrack" – Real-time Carbon Dashboard with API Integrations

This full-stack app pulled live data from public transport APIs, energy grids, and user input to estimate real-time carbon impact. What made it win? It didn’t assume user behavior.…