OPEN SOURCE BUILD DAY · OCT 11, 2026

Pick a real problem.
Ship the fix.

A working project desk for teams moving from challenge selection to a public repository, tested demo, and documented contribution.

Event readinessChecking…ASP.NET Core API + persistent JSON store

01 / CHALLENGES

Build for the city

3 practical tracks

02 / TEAM DESK

Register a build team

03 / SCOREBOARD

Proof, not pitches

No submissions yet. The first public build sets the pace.