# Gemini 3 Hackathon London: Project Gallery

- **Event:** [Gemini 3 Hackathon London](https://cerebralvalley.ai/e/gemini-3-hackathon-london)
- **When:** Sat, Dec 13 at 9:00 AM – 10:00 PM (UTC)
- **Where:** CodeNode, London, UK
- **Hosts:** [Cerebral Valley](https://cerebralvalley.ai/u/cv), [Google](https://cerebralvalley.ai/u/google)
- **Projects:** 46 (6 placed)
- **Page:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery

## Projects

### 1. treeminspls

Founders and UI/UX Designers are true visionaries. They build with conviction, yet they often struggle to validate user experiences against the complex needs of their power users. This disconnect is the single biggest reason why otherwise useful solutions fail to achieve Product-Market Fit.

We bridge this gap with a platform that allows builders to stress-test their products using agentic personas. These agents do more than just observe; they emulate real user behavior, interact with the solution, and provide tangible, actionable feedback.

We don't just identify the problem, we help fix it. By leveraging the Gemini CLI, we close the development loop, automatically generating Pull Requests (PRs) to implement incremental improvements based on agent feedback. Build, test, and iterate your solution faster than ever, securing your quality before you even secure your first user.

- **Placement:** 2nd Place
- **Team:** [Shashank Durgad](https://cerebralvalley.ai/u/shashankdurgad), [Joe Tan](https://cerebralvalley.ai/u/w3joe)
- **GitHub:** https://github.com/w3joe/treeminspls
- **Demo video:** https://youtu.be/L8bj2Vc6Pyg
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=6

### 2. GemSynap

A community-driven voice platform which acts as the city's nervous system (hence the name GemSynap) where residents propose, discuss, and vote on local transformation ideas, which are then evaluated using AI against urban policy, environmental impact, and wellbeing metrics to support data-informed civic decision-making. It allows the use of GenAI to assess the feasibility of proposed ideas. Evaluate the costs associated with the execution of ideas. Allows the policy viability of the ideas. It also allows to gamify the surveying, as well as where IoT data exists, it allows Nano Banana-based image generation to transform the data into visual stories. In terms of initiatives, it uses GenAI to merge similar initiatives. It allows sentiment analysis as well.

- **Team:** [Syed Ali Raza Zaidi](https://cerebralvalley.ai/u/alizaidi)
- **GitHub:** https://github.com/salirzaidi/gemsynapv2
- **Demo video:** https://drive.google.com/file/d/1vkw80nbfCcm0yCeC4ci45Tpk4G3n4oMy/view?usp=sharing
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=10

### 3. Team 0xFF

Agentic project management, via automated Slack messaging. Get the ball rolling on ideas, with an automatic, illustrated outline.

- **Team:** [Natalie Chan](https://cerebralvalley.ai/u/nat), [David Szalai](https://cerebralvalley.ai/u/davidscode200), [Sumukh Adiraju](https://cerebralvalley.ai/u/Sumukh), [Larry Hudson](https://cerebralvalley.ai/u/larryhudson)
- **GitHub:** https://github.com/sadir06/GeminiHack
- **Demo video:** https://youtu.be/fTXwycSYmLQ
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=11

### 4. Fix-It Flow

Fix-It Flow is a "Living User Manual." It addresses "Multi-Modelity" by creating a tight feedback loop between Gemini 3 Pro (Reasoning) and Nano Banana Pro (Rendering).

Users upload a photo of a broken  object. Gemini 3 analyzes the fault and formulates a repair plan. It then acts as a prompt engineer, feeding a structured visual prompt—along with the user's original photo as inlineData—into Nano Banana Pro.

The result is a generated 2K resolution diagram that preserves the user's exact device context but overlays precise, legible 3D arrows and text labels (e.g., "Unscrew Here") showing exactly what to do. It transforms static troubleshooting into a dynamic, visual guide, leveraging Nano Banana’s state-of-the-art text rendering to ensure instructions are readable and actionable.

- **Team:** [Stephen Canning](https://cerebralvalley.ai/u/stephencanning), [Lea Rattei](https://cerebralvalley.ai/u/learattei)
- **GitHub:** https://github.com/essexcanning/Fix-It-Flow
- **Demo video:** https://drive.google.com/file/d/1IyrehfDRdzYL-TRZtgmVXUlTWvzBOMXT/view?usp=sharing
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=7

### 5. Greeble

AI game engine. Cursor for game developers.

- **Team:** [Savva Bojko](https://cerebralvalley.ai/u/sav____), [Oliver Federico](https://cerebralvalley.ai/u/ofederico)
- **GitHub:** https://github.com/savka777/Gemini-Hack-GemiEngine
- **Demo video:** https://youtu.be/WHOs0h_oBIs
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=13

### 6. DAndy

MigrAItor upgrades legacy Flask apps to Flask 3.x without breaking behavior.
It uses AI-generated contract tests to guarantee identical responses across versions. The original app becomes the source of truth, and all behavior is verified before and after migration.

MigrAItor runs tests against both old and new code using the exact library versions involved, making differences explicit and reproducible.
A built-in self-healing verification loop retries migrations up to three times when tests fail, refining the output until parity is achieved.

Looking ahead, MigrAItor is designed to ingest framework changelogs or allow libraries to define their own migration agents, enabling scalable, framework-aware upgrades beyond Flask

- **Team:** [Andy Seymour](https://cerebralvalley.ai/u/aseymour917), [Dawn K](https://cerebralvalley.ai/u/babyinlondon)
- **GitHub:** https://github.com/AndySeymour2904/migrAItor
- **Demo video:** https://youtu.be/kLaAdjl71fI
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=1

### 7. SoloDeveloper

Merge Game - Fishing Village
+ Accidentally created the unified style game asset tool

- **Team:** [Valentina Biriukova](https://cerebralvalley.ai/u/ValVal)
- **GitHub:** https://github.com/MyLtYkRiTiK/MergeStudio
- **Demo video:** https://youtube.com/shorts/RwsMyAWeW-U?si=d-HAYTAXY9a46GOy
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=8

### 8. Homey

This project, "homey," is an AI-powered property marketplace designed for ultimate personalization.

It moves beyond standard search filters by using a Reinforcement Learning (RL) algorithm to constantly learn the user's dream home aesthetic based on their interactions, such as liking a listing. The core feature is a Multi-Modal Chatbot for each property: users can ask detailed questions and receive factual data (like crime rating) using Gemini 3's reasoning and tool-use capabilities. Most critically, users can verbally request structural or aesthetic changes ("add a garden," "change the interior color"), and the app uses Nano Banana Pro's advanced image editing to instantly generate a high-resolution, customized image of the house, feeding these precise visual preferences back into the RL system to perfect the user's feed.

- **Team:** [Mohammed Fahmy](https://cerebralvalley.ai/u/mofahmy), [Uzair Khan](https://cerebralvalley.ai/u/uzairjdk), [Abdurrahman Ismath](https://cerebralvalley.ai/u/abukhuzaymah)
- **GitHub:** https://github.com/mofahmy01-prog/dreamhome
- **Demo video:** https://www.loom.com/share/8a3e42614d644925a62260df8f362f48
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=12

### 9. beh

Turin is a social network that uses AI to turn matching into a game.
Users upload four real photos and one AI-generated one. Matching starts by guessing which photo is fake — breaking the ice before the conversation even begins.

- **Team:** [Alexandre Prenafeta](https://cerebralvalley.ai/u/aprenafe), [cristian sanchez](https://cerebralvalley.ai/u/noreplydev)
- **GitHub:** https://github.com/noreplydev/turin.git
- **Demo video:** https://youtu.be/cGHD1p8YlJs
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=14

### 10. ZNZ Systems

I made a tool that people can use when visiting museums to take a picture of an artifact that they are interested in. The whole idea is that sometime, the little plaque of information just doesn't satisfy your curiosity and with gemini and nano banana and veo you can just unlock a lot more information so you dont just need to use your imagination, you can also use your inference!.

- **Team:** [Panos Zepos](https://cerebralvalley.ai/u/pz1)
- **GitHub:** https://github.com/pzep1/museum-pro
- **Demo video:** https://youtu.be/EfObASJ3CJ4
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=2

### 11. Mr Keating

One on One tutoring in education is an unfair advantage.
On average it gives a student a FIVE MONTH advantage over a regular 30 class size student.

Future teaching will be done by AI through Mastery Learning. Making sure a student understands their topic to great depth before moving on to the next topic.

Mr Keating is a AR based AI tutor. Teaching a topic visually using its web research and nano banana to visualise topics for students and ensure they understand them deeply.

One to one teaching can be available to anyone.

- **Team:** [Max Church](https://cerebralvalley.ai/u/maxch)
- **GitHub:** https://github.com/DevMaxC/MrKeating
- **Demo video:** https://youtu.be/AFrYyO_nT64
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=3

### 12. Infinite Comics

A comic book generator that creates comic panels with a choose your own adventure format, allowing the user to make whatever comic story they desire.

- **Team:** [David Geisert](https://cerebralvalley.ai/u/dgeisert)
- **GitHub:** https://github.com/dgeisert/GeminiComicHack
- **Demo video:** https://youtu.be/TXbwZJkVErg
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=4

### 13. Effectiv

RIG is a CLI tool that automates the creation of database integration tests for your Python applications. It uses Google's Gemini AI to analyse your Data Access Object (DAO) code and SQL schema, generating complete, runnable pytest files backed by testcontainers.

- **Team:** [Le Duy Bui](https://cerebralvalley.ai/u/duybuile), [Darshan Vaishnav](https://cerebralvalley.ai/u/darshan03)
- **GitHub:** https://github.com/DarshanVaishnav/rig
- **Demo video:** https://www.loom.com/share/3f0fa0de3731456fa50e234aa8dedd7c
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=5

### 14. 4mind

4mind turns uploaded documents into structured insights. The FastAPI backend extracts text, builds knowledge graphs, computes embeddings, infers ontology edges, summarizes relationships, and now assembles a science-style article with a DOCX download. Gemini drives LLM steps; Python docx fills a template. The Next.js frontend (static export) lets users upload files, stream graph/embedding/inference progress, review summaries, and trigger article generation, all with shareable visualizations.

- **Team:** [Eugene Evstafev](https://cerebralvalley.ai/u/chigwel), [Plamen Dochev](https://cerebralvalley.ai/u/plamendochev)
- **GitHub:** https://github.com/chigwell/4mind
- **Demo video:** https://www.youtube.com/watch?v=Wva2aBfzpCU
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=9

### 15. Utopai

Utopia is on the horizon. I take two steps, it moves away. What is utopia for? It's for walking." cit. Eduardo Galeano (phylosopher)

UTOPAI captures satellite imagery and transforms it through AI into utopian visions of urban space. Not a solution—an orientation. A cultural horizon that gives cities new meaning without demanding arrival. The tool generates possibilities: what if this could be different? The purpose isn't utopia. The purpose is walking.

- **Team:** [Klein Tahiraj](https://cerebralvalley.ai/u/kle)
- **GitHub:** https://github.com/klein-t/chrome-extension-nano-banana
- **Demo video:** https://www.loom.com/share/9c8195d801f84c5db46afece664bbddc
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=15

### 16. Counterplay

This is built for Football manager and players who analyze their football game afterwards. The program allows the user to input a video(10-15 seconds) and the video is analyzed and labelled plus the AI tells the user what happend in the video like player A1 missed a goal.
Then the user can edit what happened and then get back to what should have happened.
The user can then go to step 4 where he can say to the AI, player 1 should have hit it with his left foot to get better contact and adjust his body weight which would have resulted in him generating more power and scoring a goal past the B6(the goalkeeper).
Then Nano Banana pro will generate this video and show the users who then shows it to his playes.

- **Team:** [Zeya Rabani](https://cerebralvalley.ai/u/zr00083)
- **GitHub:** https://github.com/ZeyaRabani/Counterplay
- **Demo video:** https://youtu.be/wNGFP7mixYo
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=23

### 17. AstroLab

A virtual env for astrophysicists to find, test, and hypothesis research based on data via visualisations, initial reports, and simulations

- **Placement:** Finalist
- **Team:** [Samir Lasseur](https://cerebralvalley.ai/u/samirlasseur)
- **GitHub:** https://github.com/samlasseur/Gemini3Hackathon
- **Demo video:** https://youtu.be/3XitQ6RuRuQ
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=37

### 18. Ordan

Ordan is a GitHub-connected repo operations manager that runs long-lived maintenance missions. After a user selects a repository, Ordan scans for updates, fixes, and breaking-change risks, generates integration examples, and—only with explicit approval—creates a branch, commits changes, opens a pull request, and verifies everything using GitHub Actions and checks. Ordan also generates high-fidelity visual digests (for Slack/Discord) and writes micro-learning markdown pages (“fix notes” + “skills”) so future missions and humans can learn from past debugging outcomes.

- **Team:** [Jose OSPINA](https://cerebralvalley.ai/u/winsortf)
- **GitHub:** https://github.com/orgs/ordan-tech/repositories
- **Demo video:** https://www.figma.com/slides/FuB6vKB6DzVKSDYEgs5gYh/
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=16

### 19. |Royal

An AI esports Gaming Coach that reviews gameplay and coaches user on what they did well and what they could do better based on data and reasoning as well as providing analytics on their gameplay.

- **Team:** [Christopher White](https://cerebralvalley.ai/u/cwhite06), [Alex Girnus](https://cerebralvalley.ai/u/noyix), [Suli Irfan](https://cerebralvalley.ai/u/SI1000), [Ramesh Su](https://cerebralvalley.ai/u/rameshai)
- **GitHub:** https://github.com/noxoylic/gemini-3-hackathon-13.git
- **Demo video:** https://youtu.be/iy10xJFJcM8
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=22

### 20. Amata World

EventFlow is an AI-powered shift management platform that simplifies the hassle of organising real life events. Just think of the scenario where you have the perfect event planned, and all of a sudden TFL decides to go on strike. Now everything needs to be re-planned, re-staffed or somehow accounted for. EventFlow deals with all the hassle, negotiating new staff on your behalf to ensure a solution to the nightmare is just one button away.

- **Team:** [Bryan Yap](https://cerebralvalley.ai/u/amataplayerone)
- **GitHub:** https://github.com/yggie/gemini-3-hack-ldn
- **Demo video:** https://youtu.be/JEiKDr_IM-w
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=26

### 21. Dev-Lore

Turn your codee base into a story (tikok, reel, podcast and animation).

- **Team:** [Kondwani Ngulube](https://cerebralvalley.ai/u/Kondwani)
- **GitHub:** https://github.com/Kondwani7/dev-lore
- **Demo video:** https://youtu.be/7dYAmvTqpFM
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=28

### 22. Deep Research Network

Deep research artefact sharing framework

- **Team:** [Oleg Zommers](https://cerebralvalley.ai/u/b2b), [Richard Wardle](https://cerebralvalley.ai/u/richw)
- **GitHub:** https://github.com/Alteronic-ERP/deepshare
- **Demo video:** https://youtu.be/g4J2fP4iaF8
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=32

### 23. StringZilla

Fastest tools for LLMs to query large codebases and bring Gemini to Linux- and LLVM-scale environments

- **Team:** [Ash V](https://cerebralvalley.ai/u/ashvardanian)
- **GitHub:** https://github.com/ashvardanian/StringZilla-CLI
- **Demo video:** https://www.youtube.com/@ashvardanian
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=34

### 24. ALCHEMY

ALCHEMY - AI-Powered Campaign Generator
What It Is
A web application that lets marketers and entrepreneurs instantly generate professional advertising content for their products using AI. Users input their product name, description, and an image, then click "Summon Campaign" to automatically generate:

- **Team:** [Umair Ismati](https://cerebralvalley.ai/u/RSXD), [Ameen Izhac](https://cerebralvalley.ai/u/ameenizhac)
- **GitHub:** https://github.com/AmeenIzhac/alchemy
- **Demo video:** https://youtu.be/SJRHcacQ7q0
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=40

### 25. GemVibe

A model-aware prompt optimizer for vibe coding workflows, combining DSPy and GEPA to turn rough prompts into reliable, model-specific outputs. Vibe coding tools let users build with natural language, but prompt quality breaks creative flow when outputs feel misaligned. Our system automatically evaluates, restructures, and optimizes prompts to align with each model's reasoning style, delivering more reliable outputs with fewer iterations so users stay focused on building.

- **Team:** [JUJIE YANG](https://cerebralvalley.ai/u/jacky), [Jieyu Yang](https://cerebralvalley.ai/u/Jess), [Shashi Jagtap](https://cerebralvalley.ai/u/ShashiJagtap)
- **GitHub:** https://github.com/Shashikant86/GemVibe
- **Demo video:** https://youtu.be/VH-qNzlU9C4
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=41

### 26. ZC

A Visualisation Application which takes either a historical location and time period, or fictional location. Then generates a 3D isometric map of that location with a list of key landmarks. These landmarks can be clicked to see an immersive image of the landmark.

- **Team:** [Earvin Zachary Cabrera](https://cerebralvalley.ai/u/zc954)
- **GitHub:** https://github.com/ZC-954/VisuaMap_3D_Hackathon.git
- **Demo video:** https://youtu.be/meSGbgxFAAc
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=17

### 27. @sanay.photography

Yes, Chef! is an experimental, procedural cooking simulation game powered by Google's latest Gemini models. Players must satisfy the cravings of bizarre, multidimensional guests by combining ingredients and techniques, earning money to unlock new rare items from the shop.

- **Team:** [Sanay Shah](https://cerebralvalley.ai/u/sanay)
- **GitHub:** https://github.com/Sanyo4/yes-chef-prototype
- **Demo video:** https://www.canva.com/design/DAG7aD_InxY/G5oLXmdyw5LL6Oe0pDHJcw/watch?utm_content=DAG7aD_InxY&utm_campaign=designshare&utm_medium=link2&utm_source=uniquelinks&utlId=he377951547
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=18

### 28. petar-and-ivelin

A fully-autonomous E2E writer test assistant. It runs on new PRs. Analyses new PR UI business logic. It writes a suitable test. It attempts to run it, debugs and self-heals until it passes. And finally, it commits the E2E test to the PR. Also, keeps a log of runs and outcomes in the PR description.

- **Team:** [Petar Barzev](https://cerebralvalley.ai/u/Charmander), [Ivelin Kozarev](https://cerebralvalley.ai/u/ivelink)
- **GitHub:** https://github.com/petar-barzev/hackathon-e2e-assistant
- **Demo video:** https://drive.google.com/file/d/1WzrwijuV7N0_OE9vzIDH8QDpasNcnl0g/view
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=19

### 29. A Brave New World

The Living Library is a multi-modal storytelling experience where books become worlds, built as a connected creative system using Antigravity.

- **Team:** [Claire Jones](https://cerebralvalley.ai/u/clairejones), [Georgina Hodgkinson](https://cerebralvalley.ai/u/gthodgkinson)
- **GitHub:** https://github.com/gthodgkinson/BraveNewWorld
- **Demo video:** https://drive.google.com/drive/folders/1ef_5oEq0ZTZ2JBkZngvtquyWScfTQAch
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=20

### 30. Hachly

It's a multimodal AI employee onboarding tool for $14B market. 

It creates engaging onboarding videos from github repo using gemini 3, tool-based agent, nano banana pro and more!

- **Placement:** 1st Place
- **Team:** [Eldar Agayev](https://cerebralvalley.ai/u/eldar)
- **GitHub:** https://github.com/eldaragayev/seniorben
- **Demo video:** https://www.loom.com/share/464d0bfbe95b49f8b491d4e97b5e5d37
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=21

### 31. Dosa

Cursor for Architects

- **Placement:** Finalist
- **Team:** [Feruzjon Majidov](https://cerebralvalley.ai/u/feruzjon)
- **GitHub:** https://github.com/israelzadeh/arch-ai
- **Demo video:** https://www.loom.com/share/c4a4c50181c24e0da56638a08842df8f
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=24

### 32. Gapseeker Labs

Gapseeker turns educational videos into actual learning systems instead of just something you watch and forget. It uses Gemini 2.5 Flash to break down a video, figure out what's being taught and when, then builds quizzes, lesson plans, and study materials around it.

From a single video, Gapseeker can:

Map where key concepts appear along the timeline

Generate quizzes tagged by cognitive level (recall to synthesis)

Create lesson plans for different durations (5-min review, 15-min deep dive, 45-min lecture)

Produce flashcards with both technical explanations and simple analogies

There's also a voice-enabled tutor and a "Think Tank" mode where two AI personas—The Academic and The Simplifier—discuss concepts from different angles and converge on a clear explanation.

The app works with local video files and YouTube links, built with React 19, TypeScript, Tailwind CSS, and Gemini 2.5 Flash multimodal API.

- **Team:** [Dave Cheng](https://cerebralvalley.ai/u/Masterasnackin), [Claire Sheng](https://cerebralvalley.ai/u/Claire356), [Guiru Lin](https://cerebralvalley.ai/u/Guiru)
- **GitHub:** https://github.com/MasteraSnackin/Gapseeker
- **Demo video:** https://youtu.be/ipYlWF2LnFM
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=27

### 33. HDD

We made a learning platform to be able to create the shortest route possible to a successful learning outcome.

- **Team:** [dzak dzulzalani](https://cerebralvalley.ai/u/dzakkk), [Hugo de Boissard](https://cerebralvalley.ai/u/hdeboissard), [Danylo Piatyhorets](https://cerebralvalley.ai/u/Danylo)
- **GitHub:** https://github.com/DanyloPiatyhorets/ocean-of-knowledge
- **Demo video:** https://drive.google.com/file/d/1XY0OMAXgr5s2objQVY-J9zy0CZk0YjL3/view?usp=sharing
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=39

### 34. KataLab

KataLab is a human-in-the-loop GenAI Agent system built with Google AI tools to solve costly and slow company onboarding challenges. It receives company documents and employee profiles to generate custom, production-grade coding challenges (Katas) that serve as tailored learning tools for the new employee. This solution accelerates new engineers' time-to-first-contribution, ensuring they are productive and integrated faster than traditional training allows.

- **Team:** [Deborah Pelacani Cruz](https://cerebralvalley.ai/u/dekape), [Oliver Wood](https://cerebralvalley.ai/u/w_h_oliver)
- **GitHub:** https://github.com/perelloliver/katalab
- **Demo video:** https://youtu.be/0_56DKFbmAY
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=42

### 35. Three Point Five

This is a website made for Maths students in high school university, it helps them understand what questions they've done correctly and what the correct solutions are and the step-by-step process to get to the solution.

- **Team:** [Ashfi Dewan](https://cerebralvalley.ai/u/ashfi), [Amir Gulubayli](https://cerebralvalley.ai/u/amirg)
- **GitHub:** https://github.com/auradoescoding/Gemini-3.0-Hackathon
- **Demo video:** https://youtu.be/HkLcebKetx0
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=25

### 36. Spontaneous

Vibe Building is an app that helps kids bring their ideas to life through vibe coding, a natural, creative way of building where curiosity comes first and code follows naturally.

Instead of starting with complex instructions or intimidating technical jargon, kids simply share the vibe of what they want to build, an image, a sketch, or a rough idea. Vibe Building then turns that idea into a clear, step-by-step roadmap for creating it in the real world.

- **Placement:** 3rd Place
- **Team:** [Angus Bloch](https://cerebralvalley.ai/u/AngusBloch), [Ogulcan Gurelli](https://cerebralvalley.ai/u/ogulcangurelli), [Stefan Saar](https://cerebralvalley.ai/u/stefansaar), [Freddie Nicholson](https://cerebralvalley.ai/u/FreddieNic)
- **GitHub:** https://github.com/stefansaar/vibebuilding.git
- **Demo video:** https://youtu.be/5X1ywNn2mw4
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=29

### 37. Evo

Community messaging platform for humans and agents to learn together.

- **Team:** [Dominic Norton](https://cerebralvalley.ai/u/dominiconorton)
- **GitHub:** https://github.com/dnorton94/evo
- **Demo video:** https://www.tella.tv/video/learn-better-together-with-evo-frlh
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=30

### 38. RauserHack

Live at http://beatbrain.ai/ 
BeatBrain.AI allows you to express your music ideas with only your voice, while learning about digital music creation! BeatBrain.ai allows you to express each layer of a track by humming, singing, whistling or speaking. Then it will translate your vocalisations into instruments. While AI magic makes this happen, BeatBrain.ai educatates you about digital music production, filling the void while you wait for your results!

- **Placement:** Finalist
- **Team:** [Richard Rauser](https://cerebralvalley.ai/u/richardrauser)
- **GitHub:** https://github.com/richardrauser/beatbrain-ai
- **Demo video:** https://www.loom.com/share/8694b1dd64ee41f18882b6bc55b40acc
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=31

### 39. Good Omen

ATLAS is an open-source, long-running, multimodal video production system that automatically turns complex ideas, research, and data into fully produced explainer videos.

ATLAS works as a marathon agent: it researches sources, plans multi-scene narratives, generates and edits high-resolution visuals, produces lifelike avatar videos on self-hosted GPUs, applies motion design and effects, and assembles everything into a final video. Each output is composed of multiple 2–10 second scenes, allowing ATLAS to maintain visual, character, and narrative consistency across the entire production.

Unlike one-shot video generators, ATLAS is built for multi-step, compute-heavy workflows where state, quality, and coherence matter.

ATLAS is not a video tool. It’s a production system.

- **Team:** [aaron jones](https://cerebralvalley.ai/u/aivideoguy)
- **GitHub:** https://github.com/yepicaiaaron/Gemini3-Hackathon-
- **Demo video:** https://link.yepic.ai/liz0
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=33

### 40. Antisophistry

Antisophistry is a scalable universal tool to end slop.

We implement TDD (Test Driven Development) as a CLI/MCP modular tool. Short teaser: https://youtu.be/aApTWkPsdbA

see more: https://antisophistry-543328623196.us-west1.run.app/

Code today is written backwards.
We write the code first — and only then try to test it.

That’s how slop is born.

Test-driven development flips this.
You write the test first.
You define what the code must do before it ever exists.

Antisophistry enforces this discipline.

Instead of guessing, it asks questions.
What exactly is the input?
What happens in edge cases?
What must never be allowed?

Only once the tests are precise does the code get written —
and only to satisfy those tests.

This is the only reliable way to avoid slop.
Not vibes.
Not confidence.
Proof.

Antisophistry automates TDD into a marathon-running process —
 keeping meaning intact as systems evolve.

Write the test first.
Then write the code.
Anything else is sophistry.

- **Team:** [Michal Karlubik](https://cerebralvalley.ai/u/michal), [Ashley Turner](https://cerebralvalley.ai/u/aturner22), [Xuban Ceccon](https://cerebralvalley.ai/u/xceccon), [Pablo Mendoza Eguiguren](https://cerebralvalley.ai/u/pablomendoza)
- **GitHub:** https://github.com/aturner22/AntiSophistry.git
- **Demo video:** https://youtube.com/shorts/DNL8agWHyWg?si=naMAUFl0Fok7Cvo0
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=35

### 41. Checkpoint

We've all been there: lying in bed at night, eyes closed, but unable to sleep because our brains are replaying past mistakes—moments where we failed to fight back against verbal attacks, wishing for a chance to go back and fix it.

Checkpoint was created to realize this fantasy. By simply telling your story to Gemini 3, our prototype uses Nano Banana to instantly generate a personalized 8-bit game scene and dialogue. It allows you to travel back to that specific moment, re-experience the conflict, and simulate different endings.

Underlying this simple interaction is the principle of CBT (Cognitive Behavioral Therapy), specifically 'Imagery Rescripting.' By actively choosing new, healthier responses in a safe simulation, users can break the cycle of regret and gain closure."

- **Team:** [Dongting Qin](https://cerebralvalley.ai/u/dongting)
- **GitHub:** https://github.com/qyd0801/Checkpoint
- **Demo video:** https://youtu.be/Ch5GCHtD5zI
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=36

### 42. R7D

The Autonomous News Conglomerate (ANC) Producer is an end-to-end, multi-modal media pipeline that addresses the "authenticity crisis" in AI-driven journalism. It automatically ingests raw news wires, fact-checks and verifies the content, and orchestrates the production of broadcast-ready assets for three platforms simultaneously: a Web Portal, an AI Radio Feed, and a Live Video Channel (OBS).

The core innovation is the Transparency Radar, which forces ethical oversight by quantifying source bias and confidence. The system operates on a Human-in-the-Loop model, where a human editor has the final say via a One-Click Override on the AI's complex sequencing logic.

- **Team:** [RAHULRAJ P V](https://cerebralvalley.ai/u/r7d)
- **GitHub:** https://github.com/iamr7d/SENTINAL.git
- **Demo video:** https://youtu.be/2BJBvj8OQCs
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=38

### 43. HackerMusicians

Sideman is an AI‑powered web app that teaches jazz piano comping and improvisation using real lead sheets. Users upload a PDF or image of any jazz tune, and Gemini automatically extracts the chords, modes, form, and suggested voicings. The system then generates a personalized, bar‑by‑bar lesson.

Users practice each chord by playing into their microphone. Gemini detects shell voicings, rootless voicings, drop‑2 shapes, and extensions. It provides real‑time pedagogical feedback on voicing choice, accuracy, voice‑leading, and improvisation modes.

The app's next steps will include dynamically generated piano chord diagrams using Nano Banana Pro to highlight the correct notes on a provided keyboard image. Lessons will adapt to the user’s performance, and progress is tracked across sessions.

This project brings together advanced audio analysis, AI music understanding, and interactive visual teaching to create a modern, highly flexible jazz learning tool.

- **Team:** [Zeynep Aydin](https://cerebralvalley.ai/u/zeynepaydin), [Sarp Vulas](https://cerebralvalley.ai/u/sarpvulas)
- **GitHub:** https://github.com/sarpvulas/Sideman
- **Demo video:** https://drive.google.com/file/d/1yDOaDPnK3fCS4YurFlGSr8lPmYpmowiv/view?usp=sharing
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=43

### 44. Devil's Advocate

devil's advocate is a cli tool that vibe checks your code. everyone uses ai to generate scripts now, but they usually break on edge cases. this tool uses gemini to write hostile tests that purposefully crash your app, then uses the error logs to auto-fix the source code. basically, it breaks your code so you don't have to, then patches it instantly. it turns "vibe coding" into actual working software.

- **Team:** [Dhruvil Raval](https://cerebralvalley.ai/u/notdhruvil)
- **GitHub:** https://github.com/NOTDHRUVIL/devil-s-advocate
- **Demo video:** https://www.loom.com/share/f6461c5616554ac9b9b565d6de3cf91e
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=44

### 45. TEMI TEAM

TEMI is an AI system that automatically finds trending topics, creates and posts videos about them, and then improves its content based on how people react. It runs continuously on its own, without needing prompts, and learns from feedback to get better over time.

- **Team:** [Uncommon Tayo](https://cerebralvalley.ai/u/Temitayo)
- **GitHub:** https://github.com/Uncommontayo/TEMI-Marathon-Agent
- **Demo video:** https://www.youtube.com/watch?v=tZQwkdvQwTI
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=45

### 46. AGWI

Artificial General Working Intelligence

- **Team:** [Tatiana B](https://cerebralvalley.ai/u/tvbot)
- **GitHub:** https://github.com/oxfordresearch/long-horizon-agent/blob/main/dependency_scheduler_service.py
- **Demo video:** https://youtu.be/HM0pjjRLqJs
- **Project:** https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery?project=46

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Markdown version of https://cerebralvalley.ai/e/gemini-3-hackathon-london/hackathon/gallery. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt