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AI

Season 3 — Ridgeline

Challenge calendar

One challenge per day across three weeks. Briefs are published at midday; the build window opens in the evening. Themes and partner requirements are announced ahead of time — the specific brief is not.

Season 1Season 2Season 3

Week 1

5 challenges
Day1
CompleteOpen buildwarmup

Cold Open

Build a tool that helps someone do the very first step of a task they have been avoiding.

30 min buildResults published
Day2
CompleteTool challengestandardRequired tool

Pair Programmer's Apprentice

Use Lumen Forge to build a tool for developers who are new to a codebase.

30 min buildResults published
Day3
CompleteAgentadvanced

Quiet Hours

Build an agent that does useful work while its user is asleep.

30 min buildResults published
Day4
CompleteVoice AIstandardRequired tool

Say It Back

Build a voice interface for someone who cannot comfortably use a screen.

30 min buildResults published
Day5
CompleteTeamadvanced

Cabin Build

First team challenge. Three builders, one repository, 30 minutes.

30 min buildResults published

Week 2

5 challenges
Day6
CompleteCodingstandard

Receipts

Build something that makes a messy pile of documents answerable.

30 min buildResults published
Day7
Voting openPromptstandard

One Prompt

Ship a useful product where the entire interface is a single prompt field.

30 min buildResults published
Day8
JudgingDesignstandard

The First Ninety Seconds

Design the opening 90 seconds of a product a stranger has never seen.

30 min buildResults published
Day9
LiveOpen buildstandard

Calendar

Episode 3 — build something around scheduling, time, or calendars.

Closes in--:--:--
Day10
ScheduledImage & videoadvancedRequired tool

Moving Picture

Generate video or image sequences that carry actual information, not vibes.

Starts in--:--:--

Week 3

5 challenges
Day11
ScheduledAutomationstandard

Paper Trail

Automate a process that currently lives in someone's inbox.

Starts in--:--:--
Day12
ScheduledBusinessstandard

Small Business, Big Problem

Build for a business with fewer than ten employees and no technical staff.

Starts in--:--:--
Day13
ScheduledSocial impactstandard

Common Good

Build something for a community organization that could not afford to commission it.

Starts in--:--:--
Day14
ScheduledOpen buildexpedition

Last Light

Final qualifying challenge. Open build, double points.

Starts in--:--:--
Day15
ScheduledChampionshipexpedition

Ridgeline Championship

Twelve finalists. Sixty minutes. One live stage.

Starts in--:--:--

Want a challenge built around your product?

Partners propose themes and can designate a required tool. Challenge slots for the next season are scoped about four weeks before registration opens.

Partnership options
Challenge calendar · 🏕️ AI