The 30 students at Deokhyeon joined with a free topic.
An online Yut game with power-ups, a route finder that follows the sunlight,
a service that compares university results against your school grades.
Even the pre-training wrapped up in the classroom that same day.
Deokhyeon High School (Yangju, Gyeonggi) held an AI vibe coding hackathon on Friday, October 23, 2026, split across an afternoon and an evening session. 30 high school students took part in 12 teams, and Bana ran the pre-training and the event on site.
From 2 to 5 PM, students learned vibe coding basics and the Bana tutorial, then each team picked a topic and started building. From 6 to 9 PM they kept building, and the finished apps went to the gallery.
All 12 teams published their apps to the gallery. Topics differed from team to team, from an augmented Yut game, a world travel map, and a sunlight-aware walking route to a study planner, English conversation practice, and a zombie-school survival action game.
We ran it in two parts on Friday, October 23: 14:00–17:00 and 18:00–21:00.
The vibe coding pre-training and the Bana tutorial were done in the first session of the day,
then each team picked a topic and started building.
Vibe coding basics and the Bana tutorial, then each team picks a topic and starts building
Keep building, then publish the finished app to the gallery
Some teams made games; others made a study planner and an English conversation coach.
Some picked tools they needed in their own lives,
like a travel map, a cabin-baggage checker, and a university results comparison.
The projects scroll past below. Hover to pause, and click a card to see it in detail above.
All Deokhyeon had to prepare was a student list and a classroom.
Bana takes care of the rest: pre-training, running the day, the development environment, and publishing the work.
Send us the roster and we arrive with everything ready, from team assignments to the run-of-day script.
The moment a student gets stuck, our staff work through it beside them. Teachers can just watch.
When the event ends, every team's project goes straight into the gallery and students leave each other hearts (♥).
We run the surveys too, so you can see in the data how much the students changed.
Laptops were open on every desk, with Bana up on the front screen.
Teams that finished introduced their own apps.
Deep in the build
Introducing my app
PresentingA working gameFrom schools and districts to corporate training and workforce programs, tell us the size and the dates and we'll build the rest around them.
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