GDG Coding Jams
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What the rooms shipped.

Real builds from real GDG chapters. Two hours, one pizza, one prototype. Filter by track or chapter — or scroll until something makes you want to fork it.

All builds

Showing 49–60 of 65

Resil-AI
Track 09GDG Brooklyn
Resil-AI

ResilAI is an AI Incident Readiness Platform that helps enterprise security teams automatically measure and remediate AI-specific risks. Instead of relying on manual questionnaires, it ingests live telemetry from SIEMs (like Splunk and Wazuh) to calculate a deterministic Governance Health Index. The coolest part is our Dual-Engine Architecture: we use hard, verifiable math to calculate the risk scores, and use Google Gemini for the executive summary.

I was most surprised by how perfectly we could use Gemini to translate highly technical, deterministic telemetry data into clear, executive-level narratives without any hallucination. By strictly separating the "math" (our scoring engine) from the "speech" (Gemini), we proved that AI can make compliance ledgers highly readable while remaining 100% legally auditable.

911OperatorAI
Track 09GDG Brooklyn
911OperatorAI

Our project is an AI-powered, multilingual emergency triage platform that eliminates language barriers in crisis situations. When a user calls in their native language, our Twilio and Gemini-powered backend instantly transcribes, translates, and extracts their exact emergency and location. This data is streamed in real-time to an operator dashboard, which maps the caller's location alongside the nearest police stations and fire departments for rapid, life-saving dispatch.

Building this highlighted the incredible potential of combining real-time telecom APIs with generative AI to solve life-critical communication barriers. Successfully orchestrating Twilio, Gemini, and Supabase into a live pipeline was challenging, but seeing a foreign-language phone call turn into a pinpointed map rescue route made it all worth it.

RESERVED NYC
Track 09GDG Brooklyn
RESERVED NYC

Don’t know where to eat in New York City? RESERVED NYC helps solve this problem by finding restaurants that are perfect for you based on your cuisine preferences, the occasion, the vibe you are looking for, the location, and whatever else you can think of. We want to make sure you find that perfect restaurant for you! You can also generate custom invitations to send to your guests, create custom restaurant guides, and see where other people are eating too.

Initially, we did not put much thought into the prompt. But as we were working on our app, there were changes we wanted to make that were harder to implement. What we learned was that it’s very important to design a good prompt to make things work

NYC Affordable Housing & FRFP Portal
Track 09GDG Brooklyn
NYC Affordable Housing & FRFP Portal

A targeted rent freeze program for households earning 30–60% of Area Median Income, combined with landlord subsidies and aggressive affordable housing production. This two-pronged approach stabilizes existing tenants while addressing long-term supply constraints.

how easy it was to use the google AI ecosystem

AI Interviewer
Track 09GDG Brooklyn
AI Interviewer

AI Interviewer is a real-time, voice-enabled mock interview platform that helps software engineers master both algorithmic coding and system design interviews. Built for tech candidates seeking realistic practice without the hassle of scheduling, it pairs an interactive code editor and architectural whiteboard with customizable interviewer personas. Powered by the low-latency Gemini voice AI that dynamically probes edge cases mid-interview and delivers comprehensive performance breakdown after.

One of our challenges was to stop Gemini from giving away solutions too early. What surprised us was how naturally it calibrated its guidance, offering subtle nudges while staying in character according to the selected persona, acting as a real interviewer.

Twin Space Dodger
Track 09GDG Brooklyn
Twin Space Dodger

Twin Space Dodger is a retro-styled dual-ship space runner designed to test parallel motor control and split-brain reflexes. Players control two ships simultaneously across independent parallel lanes to dodge incoming asteroid storms. With zero shooting, custom Web Audio synthesis, desktop dual-keyboard mapping (WASD + Arrows/IJKL), and mobile landscape dual-thumb touch zones, difficulty ramps up smoothly after a 5-second per-lane warmup into full dual-sync chaos.

I was surprised by how effectively the 5-second single-lane warmup trained players' left-and-right hand dexterity before launching them into dual-sector chaos. Fine-tuning the Web Audio synth and parallel collision detection made the retro arcade feel remarkably responsive and addictive.

Mood Jar AI
Track 05Solo — New York, NY
Mood Jar AI

An interactive digital mood jar app that transforms daily emotions into preserved, glowing memory notes. Users record their current state of mind to receive instant AI reflections, visual vibe tracking, and mood history visualization directly in the browser.

I was surprised by how a simple visual UI transformation and lightweight client-side state could instantly make emotion-tracking feel so tactile, playful, and engaging.

VibeGuard
Track 09GDG on Campus Concordia University
VibeGuard

VibeGuard detects security issues with vibe coded apps.

How quick we were able to build it.

Nasa project
Track 09egypt
Nasa project

An interactive educational web platform about NASA and space exploration. It features detailed guides on solar system planets, space news, NASA's historical achievements, and user account management, all wrapped in an immersive space-themed design.

I didn't expect how easy it would be to integrate interactive features like live chat and user ratings into a static space web guide. It made the whole site feel like a real live product

ISLE-VIEW-MOLLY
Track 01ISLE-VIEW-MOLLY
ISLE-VIEW-MOLLY

AURADEX is an AI-powered desktop productivity application built with Electron and modern web technologies. It provides an interactive workspace with analytics, project management tools, and AI-assisted features in a single interface. The goal is to help users stay productive while managing projects efficiently.

I expected the hardest part to be building the interface, but integrating multiple features into a smooth desktop experience was the bigger challenge. I also learned that small performance optimizations can significantly improve the user experience.

Immersive Piano Learning
Track 09GDG NYC
Immersive Piano Learning

I made a Yiruma themed piano teacher app with Kyoto river in the background, this app is trying to be a performance level piano teacher, it creates immersive experience with customized ambient. So you see the beauty in piano and music. You can drag the bar to replay and practice key paragraph. In addition, it helps guide beginner to navigate their fingers on keyboard with finger number hints. Also you can at the same time play spontaneous key stokes to jam it up and make it fun:)

I'm surprised to learn how music is programmed, sound font api, midi, mxl all the technical parts of how music interacts with computer. Using adaptive fingering engine, extending to 88 keyboard, adding paddle to replicate resonance and reverb. Beautiful music gets technical and require human craftsmanship and iterations of refinement. With Antigravity, it is possible seeing this being built.