This is a technical show-and-tell for builders, by builders. We want to see your messy experiments, creative hacks, and technical discoveries in action.

Your demo should answer: “How did you build this interesting thing?” not “Why should someone use this product?”

MUST include:

• What you built, how you built it, and what another builder can reuse or avoid
• A hard-won lesson: what broke, what surprised you, what tradeoff mattered, or what technique another builder can reuse

NO slides. NO pitches. NO market/business overview.