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Inspiration

Fixen was inspired by the constant frustrations homeowners and renters face when something breaks, leaks, or stops working — and they don’t know where to start. Many people resort to costly repair visits or unverified DIY advice online. We thought, what if anyone could access a trusted, conversational repair assistant powered by AI?

What it does

Diagnostic Guidance: Users describe their issue in plain language through an intuitive chat interface.
Severity Levels: Issues are categorized by severity (e.g., minor wall cracks vs. major structural damage).
Interactive Q&A: The assistant asks follow-up questions to narrow down possible causes.
Actionable Recommendations: Provides step-by-step troubleshooting tips or suggests professional help when necessary.
History & Logs: Tracks past diagnostics so users can revisit previous issues.

How we built it

Frontend:
- Scaffolded quickly with Bolt.new
- Designed a clean, friendly UI in Figma
Backend:
- Used Supabase to store user logs and diagnostic histories
AI Assistant:
- Powered by ChatGPT for natural-language understanding
- Supplemented with Claude- and Perplexity-inspired logic for real-time validation
Conversational Flows:
- Mapped out diagnostic trees for common household categories
- Conducted extensive user testing to refine question sequences

Challenges we ran into

Language Safety: Fine-tuning the assistant’s wording to avoid incorrect or potentially dangerous instructions.
Context Memory: Integrating session-to-session memory without compromising user privacy.
UX Balance: Designing an interface that feels helpful and supportive, yet not overwhelming or too technical.

Accomplishments that we’re proud of

Created a fully functional MVP with dynamic diagnostics
Designed and tested unique flows for wall repair scans
Established a clean brand identity and user interface tailored to our target audience

What we learned

How to balance UX and technical feasibility in AI-first applications
How to validate AI responses with fallback systems like Perplexity for fact-checking
How to manage cross-functional team roles in a fast-paced project (design, development, testing)

What’s next for Fixen

Add voice assistant functionality using Whisper or another voice-to-text model
Expand diagnostics into HVAC, roofing, and car repairs
Partner with local professionals for monetized referrals
Release a beta to real users for feedback and iteration

Built With

bolt.new
chatgpt
figma
netlify
openai
perplexity
react
supabase

Submitted to

World’s Largest Hackathon presented by Bolt

Created by

I led the creation of Fixen’s visual identity and user experience from concept to launch. I began by developing our logo, tagline and overall brand voice to ensure a cohesive, approachable look and feel in collaboration with Haoren. Once the designs were finalized, I imported the frames into Bolt.new and collaborated closely with the development environment to turn static artboards into a fully responsive, intuitive interface optimized for real-world use.

On the infrastructure side, I configured Supabase to securely store diagnostic logs and user data, set up automated deployments to Netlify under our custom fixen.org domain, and managed DNS settings to ensure seamless access. As the primary troubleshooter, I diagnosed and resolved backend timeouts and unresponsiveness, guaranteeing that our AI-powered queries ran reliably. Throughout the project, I organized and led our sprint cycles—running daily stand-ups, refining tickets, and showcasing weekly demos—so that our cross-functional team stayed aligned and delivered a polished MVP on schedule.

Dennys Antunish
I led the UI design for Fixen using Figma, creating clean, functional interfaces tailored for clarity and ease of use in mockups and in prototypes & wireframes. This included designing the layout, color schemes, icons, and the official Fixen logo, ensuring visual consistency and a strong brand identity.

Working in sprint cycles, I collaborated with Dennys to align the UI with backend capabilities, and provided suggestions for improving prompt structuring and feature flow within Bolt.new. I also contributed to the visual layout of trust-building features such as badges, diagnosis previews, and call-to-action components.

My role ensured that Fixen’s interface felt approachable and reliable, especially for users unfamiliar with home repair tools along with project planning to resources used and Bolt event insights.

HaoRen Yuan

Updates

Dennys Antunish started this project — Jun 30, 2025 04:45 PM EDT

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