James Q. Quick wearing a Hashbrown apron. The text reads, "Web Dev Challenge community hackathon, S2.E9 Breakfast Apps by Hashbrown and CodeTV"

Photos: Albert Woods

Build an app that’s about breakfast

It’s the most important meal app of the day! Build an app that is somehow related to breakfast.

Manage your favorite recipes, track the best breakfast burritos, build a digital shrine to pancakes — we don’t care what you build as long as it has something to do with breakfast.

The Tool: Hashbrown

Your app must use Hashbrown as part of the build.

Hashbrown allows developers to create generative UIs using your own components. It’s fully free and open source, released under the MIT license.

With Hashbrown, developers can provide a set of custom components with a clear schema, and use that to give your LLM guardrails for outputting generative — but quality controlled! — user interfaces that adapt to meet the needs of your users.

You’ve also got access to safe function calling, structured outputs, and a JavaScript Runtime, which open up some pretty interesting opportunities within apps.

Make new connections and get expert guidance

We’ve set up a dedicated channel in the CodeTV Discord called #builder-chat for brainstorming, sharing ideas, and keeping each other accountable.

The first 5 devs to submit a qualifying app get their choice of gear

The first 5 qualifying apps submitted will receive an item of their choice, up to $150 value, from one of the following sites:

Watch the episode for inspiration

See how Shaundai, Scott, James, Brian, Jane, and David tackled the challenge in the latest episode of Web Dev Challenge to jumpstart your own creativity.

The rules and how to submit

If you want to play along, here’s how:

  1. Team up with a friend or work on your onw
  2. Build a web app that meets the challenge
  3. Spend 30 minutes¹ planning your app
  4. Spend 4 hours¹ building your app
  5. Use Hashbrown to build your web app
  6. Publish the source code as a public GitHub repo
  7. Publish the web app to a public URL
  8. Submit your web app by 11:59 pm Pacific on Monday, Sep 8, 2025

Submit your web app

Happy building! Let’s have some fun.