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
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.
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
One vote per round. Nothing leaves this page: it's a mockup.
Also in play · Bracket A
Null Pointers' Shelfie, built under the handicap "Phone first: it must work well at 360px wide", against Prompt Pilots' LendLoop. 9 judges so far.
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 won her Round 1 duel against Omar Haddad, 15,020 to 14,880. Omar's card was destroyed.
Rulebook
How a round works. Four cards, played in order, every week.
- 1
Same brief
Both teams get the same brief and the same deadline: seven days to build.
- 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
Duel
Each captain picks a player from the other team. Both play the same game. Best of three tries wins.
- 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.
Match history
Season 1 so far. Two rounds, two wins each. Round 3 decides who leads.
Season 1 · round wins
2Devs
2Vibe Coders
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
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
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
Supporters
- 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
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
- 1Pearl Walsh@pearl-walsh50pts
- 1Jamal Ratke@jamal-ratke50pts
- 1Aryanna Sauer@aryanna-sauer50pts
- 1Nikolas Hackett@nikolas-hackett50pts
- 1Richmond DuBuque@richmond-dubuque50pts
+5 more on 50 · 4 on 40 · 23 on 35Top 5 of 59
Lines judges left in Round 2
“Loaded fast on my phone and I got it straight away.”
“The other one looked nicer but this one worked.”
“Clear buttons and plain words. My mum could use it.”
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 GitHub handle, ready to share the day the teams are picked.
You build by prompting AI tools. Show what you can ship without writing the code yourself.
Apply as a Vibe Coder