
Hacktoberfest Hack Day Manchester x Open Source Society UoM
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UoM Hacktoberfest 2026 is officially live! 🎃
We’re hosting an in-person hack day on Sunday 11th October at the SU Theatre, doors open at 12pm. Spend the day building with open source tools, exploring new technologies, and shipping something you’re proud of alongside fellow hackers.
We’ve got a guest talk from Cloud Native Manchester, lunch provided, and a closing ceremony to celebrate what we’ve all built.
All skill levels welcome — bring your laptop, bring your curiosity, and let’s build something together.
Register now, spots are limited!
Prize Categories
7 categories- View Best Open-Source AI Project

Best Open-Source AI Project
Exclusive Hacktoberfest 2026 Winner DEV Badge & MLH Swag Bag
Build an original project that uses open-source or open-weight AI as an important part of how it works. Teams could create an agent skill, build with an open-weight large or small language model, or build or adapt an open-source model harness.
View category - View Best Music related projectEvent prize
Best Music related project
Build a project that transforms how we create, interact with, visualize, or experience music and sound. Teams could generate real-time AI compositions based on live biometric data, build interactive spatial audio environments, craft generative instruments powered by novel hardware, or turn terminal logs into synthwave jams.
Audio-Centric Focus: Sound, voice, synthesis, or music generation must be at the very core of the project’s user experience.
Interactive & Expressive: Submissions should explore new forms of creative expression, performance tools, or novel audio visualization.
Novel Integration: Bonus points for unique combinations of audio pipelines, live hardware controls, or creative MIDI/DSP hacks.
View category - View Best Physical World HackEvent prize
Best Physical World Hack
Build a project that bridges software with the physical world in a tangible, interactive, or surprising way. Teams could build custom robotics, hack smart home devices, create wearable tech, or connect physical sensors and controllers to AI models to react to the environment around them.
Physical Component: Must feature custom hardware, microcontrollers (Arduino, Raspberry Pi, ESP32), sensor arrays, or physical actuators.
Software-to-Hardware Bridge: Seamless integration between digital logic/models and physical hardware outputs or inputs.
Tangible Impact or Utility: Focus on physical interaction, hands-on fun, or novel real-world sensory feedback.
View category - View Best Use of ElevenlabsEvent prize
Best Use of Elevenlabs
Build an original project that uses ElevenLabs AI voice, audio, or speech technologies as a core component of how it works. Teams could integrate high-fidelity text-to-speech (TTS), speech-to-speech voice conversion, real-time Conversational AI agents, custom voice cloning, or automated dubbing and sound generation. These are examples within one challenge, and teams may combine them.
ElevenLabs Integration: ElevenLabs API, SDKs, or tools must play a central role in the project’s user experience or backend workflow.
Open Source & Licensing: The project must be published in a public GitHub repository and use an open-source license.
Conversational & Interactive Features: If using ElevenLabs Conversational AI or Agent features, the integration must demonstrate dynamic, interactive voice capabilities or custom tool usage.
Audio & Media Applications: Submissions using voice cloning, dubbing, or sound effects must include an original implementation, workflow, or interactive application around the generated audio.
View category - View Best Use of Gemma 4
Best Use of Gemma 4
It’s time to see how much you can build with a lightweight, open model. Gemma 4 packs multimodal intelligence into an open-weights model that you can access through the Gemini API. So, what can Gemma 4 bring to your project?
- Multimodal Experience: Work with text and images to create an assistant that understands more of what users share.
- Focused AI Tools: Build a focused AI tool for learning, creativity, productivity, or your community.
- Rapid Prototyping: Experiment with an open model while using the Gemini API to move quickly from an idea to a working prototype.
Bring your idea to life… what will you build with Gemma 4 today?
View category - View Best User InterfaceEvent prize
Best User Interface
Build a project with an unforgettable interface, intuitive user journey, or mind-bending visual interaction. This track isn’t just about clean buttons—it’s for sleek canvas interfaces, stunning 3D shaders, delightfully tactile micro-interactions, or spatial UI concepts that make everyday software feel magical to use.
Design Precision: Prioritize exceptional visual polish, fluid animations, typography, and thoughtful interaction design.
Usability & Flow: High aesthetics backed by an effortless, intuitive user flow that makes complex tech feel effortless.
View category - View Manchester MadnessEvent prize
Manchester Madness
Build something completely wild, absurd, hilarious, or delightfully unnecessary that embodies the true spirit of hackathon hacking! This track is for the projects that will definitely never get into Y Combinator, will never see a pitch deck, but will make the entire room burst out laughing or stand in awe of your chaotic genius.
Whether you’re training a fine-tuned model to roast your teammate’s GitHub commits in a dramatic Shakespearean accent, building a physical device that squirts water whenever your build fails, or creating an AI agent whose only goal is to aggressively negotiate for free pizza—if it’s fun, whimsical, and wildly creative, it belongs here.
Pure Hackathon Energy: Prioritize fun, humor, novel interactions, or sheer absurdity over commercial viability, TAM, or business metrics.
Chaotic Creativity: Embrace wild ideas, unexpected tech stacks, or bizarre hardware hacks that exist purely for the joy of building.
Local Flavor & Culture: Bonus points for nods to Manchester, hackathon lore, inside jokes, or local vibes!
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