“I assumed building a real-time kitchen assistant would require a complex video streaming pipeline and file uploads. I was amazed that sending raw webcam frames directly to Gemini 2.5 Flash achieved sub-second, structured feedback loops.”
Build with AI.
Together.
In two hours.
Pick any track. Open the kit. Ship a real AI prototype before the pizza gets cold.
↑ Eight demos, on a loop. Hover to pause, click to watch.
Eight jams. Open any one.
Each track ships a working app.
How a Coding Jam works →GDG chapters jamming
- 1GDG NYC3
- 2GDG on Campus Talladega College1
- 3GDG on Campus - DePauw University1
What builders shipped

Craft_Faces is a web based live AR mask-wearing application, where you can choose and wear your favorite mask by hand gesture, and snap a shot by voice!
“When I decided to implement hand gesture interactions, Antigravity presented two potential approaches: 2D mesh and 3D mesh, not just one method. It clearly explained how each method works, demonstrated the expected visual effects, and outlined the advantages and trade-offs of each option. This helped me make an informed technical decision. This is very helpful and the spec generation is detailed.”

Turn the random ingredients in your fridge into a custom recipe and a dreamy, AI-generated photo of the finished dish — all wrapped in a Y2K Dreamcore aesthetic that feels like downloading a rare program in 2003.
“How fast vibe-coding tools like Antigravity take a developer from 0 to 1. I was surprised by the level of awareness and detail it displayed after well-engineered prompts.”

For the spenders who dread checking their credit card statements at month's end. Buster is a financial tracker that brings awareness to your spending habits. Buster keeps you in check—catching that $6 coffee you buy every morning and highlights how your daily choices impact your financial picture. Stay accountable without the shame.
“For a first time gemini user it was fun to test the capabilities in a developer friendly environment. I think that in the ~45 minutes we had, I was able to build a fun MVP and demo that satisfied a big paint point in my life, and potentially others. Looking forward to bringing out the max potential out of Gemini and the Google tools as I try to bring this application to the App Store!”

FridgeJam uses Gemini AI to turn leftovers into personalized recipes! Type ingredients or snap a fridge photo for the Gemini 2.5-Flash model to auto-detect them. Ingredients drop into a physics jar where you pick a custom AI Chef for a tailored meal, playing mini-games and guessing jokes while you wait. Get AI-generated food images, download a PDF, or like to save it to your personal recipe box.
“I was surprised by how creative Gemini has become! I prompted Gemini in Antigravity to "go crazy" with a secret feature I won't disclose here, and it delivered one of the absolute coolest parts of the entire project, implementing it entirely from scratch as well!”
Ready to bring this to your GDG?
The Jam Session Kit has everything: starter repos, the Antigravity codelab, Spec Talk card, and demo videos. You bring the room and the pizza.







