CodeTV Web Dev Challenge × Inngest

Build an appthat does work whileyou're away

Welcome to Inngest's Web Dev Challenge Hackathon! Build an event-driven app or agent that runs no matter what, and win cool prizes. The Inngest SDK is all you need to make work reliable at scale.

Submit your app Watch our episode

Inngest

Running

statusstill going — while you grab coffee

stepstep.sleep("20m")

logfunction parked — clock is still ticking

Challenge OpenSubmissions close on October 6Challenge OpenSubmissions close on October 6Challenge OpenSubmissions close on October 6Challenge OpenSubmissions close on October 6Challenge OpenSubmissions close on October 6Challenge OpenSubmissions close on October 6

YouTube

Watch the episode

Four hours. Three teams. Two days. And one glimpse into the potential hellscape that might await us if the agents take over (you gotta watch to understand).

Meet the teams

Learn how each pair used Inngest to build durable agents that keep running no matter what.

01
Off the Bench
- Syscily
- Nadira
Off the Bench is an app that lets players and coaches make asynchronous updates to schedules and locations for rec team leagues.
02
Meatbags
- Brian
- Scott
Meatbags is my nightmare (the app not the team). An agentic manager that provides demoralizing feedback in real time? Help.
03
Mailbug
- Business Goose
- Eli
Email sucks. Mailbug to the rescue. This app analyzes emails and intelligently sorts by real priority and impact, so you don't have to.

Your Hackathon Prizes

Inngest is accepting submissions until October 6, 2026. Build on Inngest for free, send us what you got, and compete for a free year of Inngest Pro to take your app to the next level.

Build Free Read the Docs

First Prize
1 year of Inngest Pro + Anti-Infra Hoodie
Second Prize
3 months of Pro + Anti-Infra shirt
Third Prize
1 month of Pro + exclusive sticker pack

Resource kit

Start building

Same stack the teams used on set: a quickstart, a function that sleeps and waits, and the docs for the primitives behind it.

Build Free Read the Docs

Starter code

keep-going.ts

inngest.createFunction(
  { id: "keep-going" },
  { event: "challenge.started" },
  async ({ step }) => {
    await step.run("start-the-thing", startIt)
    await step.sleep("grab-coffee", "20m")
    await step.waitForEvent("the-world-happened", {
      event: "challenge.continue",
      timeout: "7d",
    })
    await step.run("finish-it", finishIt)
  }

The primitives

How it works

How does Inngest keep your code running?

Workers? Queues? State Machines? You don't have time for all that. Inngest lets you wrap existing code in steps that dictate how it should behave during any event, at any scale. If your workflow dies, a deploy ships, or you're waiting on a response, your run pauses, resumes, and retries only what didn't finish. Zero extra infra required.