Concept 11 · Deck Builder · Holo Deck × Merge ConflictAll concepts ←
Clash of CodeDevs vs Vibe Coders
round-03· Season 1
season-1round-03bracket-b.deck Voting open
Field card · the brief Season 1 · Round 3

Off By OneVibe Check: Devs against Vibe Coders

“A tracker for borrowed books and tools”

Same brief, same seven days. The Devs wrote their app's code. The Vibe Coders had AI write theirs. Try both, then play your vote for the one you'd rather use.

Voting closes in

15HRS 50MIN 21SEC

Sun 25 Oct, 09:00 UTC

The tally stays face down until voting closes. 14 judges have voted this round, 5 of them in this bracket. Your one vote can go to either bracket.

Off By One

Devs · wrote the code

Off By One R03 · B

Who Has It

App · coded by hand

A shared list for the whole flat, with photos and due dates.

No handicap this round

Cpt Ben Adeyemi5 of 5 standing
Open app Source code

Vibe Check

Vibe Coders · AI wrote it

Vibe Check R03 · B

Boomerang

App · prompted into being

Lend anything with one tap. It comes back, like a boomerang.

Handicap: 48 hours less to build

Cpt Zoe Laurent4 of 5 standing
Source code Open app

Null Pointers

Devs · wrote the code

Null Pointers R03 · A

Shelfie

App · coded by hand

Snap the cover, pick a friend, done. Reminds them after two weeks.

Handicap: phone first, 360px wide

Cpt Ada Okafor4 of 5 standing
Open app Source code

Prompt Pilots

Vibe Coders · AI wrote it

Prompt Pilots R03 · A

LendLoop

App · prompted into being

Your stuff, who has it, and a polite nudge when it is overdue.

No handicap this round

Cpt Grace Mbeki4 of 5 standing
Source code Open app
duel/tap-rush.js
Live duel· closes in 23:50:21

Showdown

// The live duel from Round 2, Bracket B. Each captain picked a player from the other team. Chloe Dubois and Kira Novak play Tap Rush: three tries each, the best score counts, and the loser leaves their team.

Off By OneS1 · 012

Chloe Dubois

Indie hacker · @chloe

Duels 1–0 · won R01 with 15,020

The game · same for both

Tap Rush

Tap the targets for 20 seconds.

Duel closes in

23HRS 50MIN 21SEC

Sun 25 Oct, 17:00 UTC

Both best scores stay face down until the duel closes. Then the cards flip and the loser's card is destroyed.

Vibe CheckS1 · 018

Kira Novak

UX researcher · @kira

Duels 0–0 · her first duel

chloe.best = // sealed until the duel closes

kira.best = // Sun 25 Oct, 17:00 UTC

// Last time: Chloe beat Omar Haddad 15,020 to 14,880 in Round 1. Omar's card was destroyed.

RULEBOOK.md
Full rules

Rulebook

// How a round works. Four cards, played in order, every week. Right now we're on card 2.

  1. 1

    Same brief

    Both teams get the same brief and the same deadline: seven days to build.

  2. 2 Now · R03

    You judge

    Open both apps, cast one vote and leave a line of feedback. The count stays hidden until voting closes.

  3. 3

    Duel

    Each captain picks a player from the other team. Both play the same game. Best of three tries wins.

  4. 4

    Out

    The duel loser leaves the team. The team that lost the vote gets a handicap next round.

// Then it repeats, until a team can no longer field two players or the rounds run out.

// Other contests ask you not to use AI. We gave it a team.

match-history.log
Season 1· 2 rounds played

Match history

// Season 1 so far. Two rounds, two wins each. Round 3 decides who leads.

Season 1 · round wins

Duels won2 – 1
Players standing9 v 8
Judges this season59
R01Complete

A tool for splitting bills with friends

Null Pointerswon Bracket A · 18–1162%
Vibe Checkwon Bracket B · 16–1355%

Duels: Jules beat Tom · Chloe beat Omar

R02 Duel on

A one-page planner for a dinner party

Prompt Pilotswon Bracket A · 16–1453%
Off By Onewon Bracket B · 17–1259%

Duels: Priya beat Jules · Chloe v Kira, on now

R03 Voting

A tracker for borrowed books and tools

Both brackets face down until Sun 25 Oct, 09:00 UTC.

14 judges so far · you can still vote

R04

Brief drops
Mon 26 Oct, 09:00 UTC

// Out so far: Tom Reyes (R01), Omar Haddad (R01), Jules Martin (R02). All rounds

20 players· 17 standing

The decks

// Every player is a card, public with their GitHub, X or site so anyone can check who really writes code. Lose a duel and your card is destroyed.

the-pot.gold
9 contributors· from $5

The pot

// Winner takes all. The team that wins Season 1 splits the whole pot evenly. Anyone can add to it, from $5.

Legendary · Season 1

The Pot

$365

Winner takes all. Paid to the team that wins the season, split evenly between its players.

Chipped in so far: Kettle, the organiser, Pixel Forge and 6 more.

S1 · 000/0209 contributors

Sponsor cards

supporters.diff · every line adds to the pot7 people · +$165

  • The organiser$100
  • Marta$20
  • Someone kind$15
  • Dev Dad$10
  • Jo Park$10
  • Kofi$5
  • Sofia$5
Add to the pot

From $5. Give $25 or more and your name, link and logo go on a sponsor card in front of every judge.

collectors.md
59 judges· all seasons

Collectors

// The top judges. 59 people have judged so far and earned points for it. Right now 10 of them share first place.

Joint first · 50 pointsAll seasons
  1. 1Pearl Walsh@pearl-walsh50pts
  2. 1Jamal Ratke@jamal-ratke50pts
  3. 1Aryanna Sauer@aryanna-sauer50pts
  4. 1Nikolas Hackett@nikolas-hackett50pts
  5. 1Richmond DuBuque@richmond-dubuque50pts
+5 more on 50 · 4 on 40 · 23 on 35Top 5 of 59

How judges score

+10 per vote+5 for a line of feedback+5 when your pick wins

Lines judges left in Round 2

  • “Loaded fast on my phone and I got it straight away.”a judge · Round 2
  • “The other one looked nicer but this one worked.”a judge · Round 2
  • “Clear buttons and plain words. My mum could use it.”a judge · Round 2
Judge Round 3 · takes two minutes
starter-packs/
Next season· applications open

Open your starter pack

// Pick your side for next season. It's free to join, and every player gets their own card: your face, name and handle, ready to share the day the teams are picked.

You write code for a living, or close to it. Show what experience is worth.

Apply as a Dev

You build by prompting AI tools. Show what you can ship without writing the code yourself.

Apply as a Vibe Coder

Not building? Judge the apps. It takes two minutes, and judges collect points all season.

Judge Round 3
Ballot round-03 › bracket-b.deck

// One vote per round, for either bracket. +10 points for voting, +5 for a line of feedback. Nothing leaves this page: it's a mockup.