The 77 students at Cheongju Daeseong picked topics nobody assigned them.
Drug delivery systems, HBM cooling, photocatalysts for artificial photosynthesis…
They turned whatever they cared about straight into an app.
Two hours one evening, and the next morning.
Cheongju Daeseong High School held an AI vibe coding hackathon on the evening of Thursday, July 16 and the morning of Friday, July 17, 2026. 77 high school students took part in 22 teams, and three Bana instructors and mentors ran the event on site.
On the first evening, from 7 to 9 PM, students learned AI literacy and vibe coding. The next morning, from 8:30 AM to 1:30 PM, each team built a web app on a topic of its own choosing. The event closed with time to try each other's work.
All 22 teams published a working app to the Bana gallery. Topics differed from team to team, from a cancer-treatment game and semiconductor cooling to photocatalysts for artificial photosynthesis, typhoon and wildfire response, and gaps in welfare and healthcare.
On Thursday evening, even students seeing it for the first time got the hang of it from a two-hour session.
The next morning they started building immediately and stayed with it, without a break.
First taste of AI literacy and vibe coding
Teams go straight from their own topic to an app
Focused straight through, then shared to the Bana gallery
Time to actually use the apps other teams built
Twenty-two teams each picked a different problem:
cancer treatment and semiconductor cooling, photocatalysts, typhoons and wildfires, welfare and healthcare gaps.
Starting from what they cared about, they never put it down.
The projects scroll past below. Hover to pause, and click a card to see it in detail above.
All Cheongju Daeseong had to handle was a single list of student names.
Bana takes care of the rest: team assignments, running the day, technical support, 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.
We kept the tool explanation short.
Most of the day went to the students actually building.
Deep in the build
Evening pre-training
A working app
Team development
Helping each otherFrom schools and districts to corporate training and workforce programs, tell us the size and the dates and we'll build the rest around them.
Leave a message and we'll reply within one business day.
We'll be in touch within one business day.