CustomHack

​Most apps treat all users identically. Build something that doesn't.

​The Challenge

​Build software that fits every user. Real people aren't the same - so why should their software be?

​CustomHack unites three powerful tools - lingo.dev (localization), tambo.co (adaptive UI), and useautumn.com (dynamic pricing) - so you can prototype products that shift to each user's context.

​We've got YC founders, adaptive software builders, and curious minds who think UX should be personal. Expect smart discussions and serious customization vibes.

​Show the world how software should feel when it finally knows us.

​4 Days. Online. Pure Building.

​Thursday July 3rd, 10AM SF Time → Sunday July 6th, 5PM SF Time

​👥 Who Should Join?

• ​Developers who hate generic user experiences

• ​Designers obsessed with personalization

• ​Curious builders fascinated by adaptive systems

• ​Solo hackers and teams welcome

​🏆 What You're Fighting For

• ​1st Place: $2K

• ​2nd Place: $750

• ​3rd Place: $500

• ​Social Favorite: $1K (community voted)

• ​Instant Prizes: $750+

​🛠️ Your Arsenal

​Featured tools from our sponsors: lingo.dev, tambo.co, useautumn.com, plus Supabase, Resend, Better Auth, Firecrawl, and Magic UI.

​Mix them, hack them, or build something completely different.

​Founders and developers from our sponsor companies will be in Discord channels to help with technical questions throughout the event.

​🧠 Judging Criteria

• ​Impact: Clearly improves day-to-day software use end-to-end

• ​Creativity: Uses AI, context, UI, translation, payments, email, and data in original ways

• ​Personalization: Adapts in real time to each user's needs, preferences, and environment

• ​Demo Quality: Quickly shows what it does, how it works, and why it matters

​Powered By

​Autumn • Tambo • Lingo.dev • Better Auth • Firecrawl • Magic UI • Resend • Supabase

​Ready to build software that actually gets its users?