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Posted on Nov 1 Edited on Nov 1

GHOSTLIGHT: Stadium of Echoes Cover

#hf26challenge #devchallenge #ollama #gemma

Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 4: Ghost in the Machine

Football Remembers the Scores. We Remember the People.

🏟️ Live Showcase: https://ghostlight-stadium-of-echoes.onrender.com

📦 Source Code (GitHub): ghostlight-stadium-of-echoes

A football match lasts 90 minutes.

Sometimes 120.

But a memory can last a lifetime.

For some people, it's the roar of thousands of supporters. For others, it's the smell of wet grass, the glow of floodlights through the rain, an old ticket kept in a drawer, or the feeling of holding someone's hand while watching a match for the very first time.

Years pass. Stadiums are renovated or torn down. Tickets fade. Results become statistics in databases.

But the memories remain.

Football remembers the scores. GHOSTLIGHT remembers the people.

That’s the idea behind GHOSTLIGHT: Stadium of Echoes — a cinematic, interactive digital sanctuary where forgotten football memories come back to life through locally running open-weight AI.

Hero: The Forgotten Stadium under midnight floodlights.

The Idea: A Stadium Full of Memories

The theme of the Hacktoberfest 2026 Ghost in the Machine challenge inspired me to explore a different kind of digital ghost.

Not a ghost that scares people.

A ghost that preserves something worth remembering.

I wanted to build an experience that connects football heritage, personal storytelling, open-weight artificial intelligence, and digital preservation.

The result is an interactive night stadium.

At first, it is almost completely dark. Its stands are silent. Only a few distant floodlights cut through the midnight mist.

Then someone leaves a memory.

An old matchday photograph. A ticket stub. A scarf. A few sentences about a football match experienced decades ago.

The AI helps transform that fragment into a living digital exhibit.

A section of the grandstand illuminates.

And the memory finds its eternal seat.

How It Works

GHOSTLIGHT is designed around a three-step emotional loop:

Leave an artifact → Awaken a memory → Explore its echoes.

1. The Forgotten Stadium

The experience begins in an atmospheric football cathedral at night. The interface uses a midnight palette of near-black, deep navy, and warm luminous gold.

Volumetric floodlights, animated fog, drifting particles, and editorial typography create the feeling of entering a place suspended between the past and present.

The main invitation is simple:

SOME MEMORIES NEVER LEAVE.

Users can awaken a new memory or explore the existing archive.

2. Leave an Artifact

Users can awaken a memory by entering:

A story or personal recollection: A heartfelt paragraph of what they experienced.
An approximate year: e.g., 1968, 1982, or 1998.
A football club or team: The colors they cheered for.
A stadium, if known: The cathedral where it occurred.
An optional photograph or visual artifact: Uploaded via drag-and-drop.

The uploaded artifact becomes the centerpiece of the exhibit.

The system does not require users to know every historical detail. An incomplete memory is still deeply worth preserving.

3. The Ghost Awakens — Gemma Meets Ollama

This is where open-weight AI becomes the heartbeat of the experience.

GHOSTLIGHT uses Google Gemma 3 4B, running 100% locally through Ollama.

Instead of sending personal family stories to a remote commercial cloud, the client communicates with a local Express backend, which prompts the local model with strict archival guardrails.

The model transforms the submitted recollection into structured exhibit data:

Title: An uppercase poetic exhibit name.
Approximate year: Historical era anchoring.
Theme and emotional character: e.g., "Ancestral Reverence", "First Floodlight Glow".
Narrative: An evocative, respectful story capturing the sensory atmosphere.
Closing inscription: A stone-carved epitaph for the grandstand plaque.
Tags: Connecting historical motifs.
Grounded recollections: Confirmed facts stated by the user.
Unknown or missing details: Respectfully cataloged as "Lost to the stadium winds".

The Ethical AI Principle: Enrich, Never Rewrite History

The system strictly distinguishes information explicitly provided by the user from details that remain unknown.

It never invents match results, fictional player lineups, attendance figures, or synthetic deceased voices simply to make a story sound complete.

A missing scoreline is not a bug to fix. It is part of what makes a human memory authentic.

4. The Memory Reveal

Once the memory has been processed during the floodlight power-up séance, the stadium begins to awaken:

A newly allocated seat in the grandstand lights up.
The exhibit title emerges in gold typography alongside the original uploaded artifact.
Two distinct columns tell the story:
- Grounded Recollections: Details verified by the person who submitted the memory.
- Lost to the Winds: Information that remains forgotten in time.

The closing inscription might read:

“Some matches never end.”

5. A Stadium That Speaks

I wanted the experience to engage the ears as deeply as the eyes.

GHOSTLIGHT includes two narration styles:

Tannoy: An authentic stadium announcer voice, preceded by a synthesized two-tone stadium bell chime (D5 587Hz -> A4 440Hz).
Whisper: A quieter, intimate museum-style narration.

The browser's native SpeechSynthesis API provides the voice. Meanwhile, a procedural Web Audio API soundscape adds a subtle stadium night hum, while the Rain Derby weather mode introduces synthesized rainfall and a stormy visual atmosphere.

Listening to a memory feels like attending a quiet private ceremony under the lights.

6. The Vintage Matchday Ticket

Vintage Matchday Ticket: A physical-digital keepsake generated dynamically on HTML5 Canvas.

One of the most distinctive details is the Vintage Matchday Ticket generator.

Every memory can become a high-resolution (1200x520px) digital keepsake:

Authentic perforated edges with cutout notches.
Archival exhibition title.
Stand, sector, and seat coordinates.
Period-inspired ink stamps (PRESS ARCHIVE • AUTHENTICATED or ALL HALLOWS' SPECIAL).
Procedural retro turnstile barcodes and serial numbers.

Users can toggle between the Museum Exhibit Plaque and the Vintage Matchday Ticket, exporting either as a print-ready PNG image. It turns fleeting digital text into a tangible souvenir worth keeping.

7. The Living Stadium and Echo Threads

Echo Threads: Luminous Bézier arcs connecting strangers through shared history.

The stadium is more than a backdrop — it is a living entity.

Every saved memory occupies an illuminated coordinate in the stands:

North Stand: Family devotions and childhood memories.
South Stand (Kop): Passionate chanting and terrace anthems.
West Grandstand: Press boxes and tactical heritage.
East Terrace: Historic standing terraces in the rain.

The Echo Threads feature takes this further: it automatically calculates and draws glowing Bézier curves between memories that share:

The same decade (e.g., the 1970s or 1990s).
The same football club.
A common emotional resonance.

Someone who remembers a rainy cup match in 1989 is visually connected to someone else who cheered for the same club in that era. The stadium becomes an illuminated web of collective human belonging.

8. A Museum That Belongs to Its Owner

Digital preservation should never mean handing ownership of personal memories over to an ad-driven cloud platform.

GHOSTLIGHT follows an uncompromising local-first approach:

All memories and high-res artifact images are stored directly in your browser's IndexedDB.
The archive provides full-text search, decade filters, card downloads, and JSON metadata exports.
The Time Capsule: Users can export their entire stadium collection into a self-contained .ghostlight.json file, and import it onto any other computer or browser.

The museum belongs entirely to the person who created it.

Technology Behind the Experience

Component	Technology
Frontend	React 19, TypeScript, Vite 8
Styling	Tailwind CSS v4 (with zero-CLS theme variables)
Animation	Framer Motion (spatial canvas transitions)
Backend Proxy	Node.js, Express 5
AI Model	Google Gemma 3 4B (Instruct)
Local Runtime	Ollama
Persistence	IndexedDB via `idb`
Narration	Native Browser `SpeechSynthesis`
Acoustic Soundscape	Web Audio API (realtime Tannoy chime + weather synthesis)
Graphics & Artifacts	HTML5 Canvas 2D image renderer

Architectural Flow:

  USER
    │
    ▼
  REACT 19 + VITE CLIENT
    │
    ├───► INDEXEDDB (Local Private Storage)
    │
    ▼
  EXPRESS 5 API (Port 3001)
    │
    ▼
  LOCAL OLLAMA ENGINE (Port 11434)
    │
    ▼
  GOOGLE GEMMA 3 4B (Strict JSON Mode)
    │
    ▼
  STRUCTURED MEMORY EXHIBIT
    │
    ▼
  MEMORY REVEAL (Seat Coordinates + Tannoy Audio + Vintage Ticket PNG)

The core AI workflow does not require a cloud LLM subscription or an API key. Everything runs on the hardware right in front of you.

Why Open Innovation Matters

Running an open-weight model locally is not merely an engineering preference for GHOSTLIGHT. It is a core product principle.

Personal photographs, deceased relatives' tickets, and intimate family memories are sacred. They deserve far better protection than being sent to third-party cloud servers for training or surveillance.

Using Gemma 3 through Ollama gives GHOSTLIGHT five vital guarantees:

Privacy & Control: Memory text is processed on the user's machine without ever touching an external API.
Independence: The application will work twenty years from now, even if commercial AI APIs vanish or change their pricing models.
Accessibility: Anyone with consumer hardware can run the model locally.
Ownership: The archive and its .ghostlight.json Time Capsule remain strictly under the user's control.
Reproducibility: Any developer can clone the repository, pull gemma3:4b, and immediately experience the full installation.

What I Learned

One of the biggest lessons from this project is that AI applications do not always need to revolve around a conversational chatbot.

Sometimes the most profound interface for an AI system is a spatial experience.

Gemma does not need to act like a sports statistician or guess match scores. Its role is far more human: helping people structure raw emotions, giving them an archival form, and preserving the sensory essence of a moment.

The small details are what bring the soul to life:

The two-tone Tannoy chime before a story is spoken.
The perforated tear-off line on a vintage matchday ticket.
A single golden seat igniting in a darkened grandstand.
A glowing thread connecting two strangers across fifty years of football history.

These details transform GHOSTLIGHT from another AI demo into an authentic place of reverence.

What's Next?

GHOSTLIGHT began with football, but the underlying philosophy can expand into many cultural realms:

Supporter Club Heritage Archives: Preserving historic community memory before legendary stadiums are renovated.
Family Legacy Museums: Honoring passed generations and their shared passions.
Historical Places & Vanished Landmarks: Reviving theaters, concert halls, and community centers.

The long-term ambition is to give communities the tools to preserve the human stories that official archives overlook.

Running Locally:

Install Ollama and download the model:

ollama serve
ollama pull gemma3:4b

Clone and start the application:

git clone https://github.com/budulay/ghostlight-stadium-of-echoes.git
cd ghostlight-stadium-of-echoes
npm install
npm run dev

Open in your browser:

http://localhost:5173

The sample memory can also be explored instantly without live AI inference. For real-time memory analysis, ensure Ollama is running with gemma3:4b.

The Final Whistle

I started with a simple question:

What if we could preserve the feeling of a football match, not just its score?

A stadium is far more than concrete, grass, and plastic seats.

It is a place where generations meet. Where friendships begin. Where families forge traditions. Where complete strangers hug in the pouring rain when a goal crosses the line in the 93rd minute.

And perhaps somewhere, in an old drawer, there is still a faded ticket from a match that nobody else remembers.

That ticket deserves a place.

That story deserves a light.

Football remembers the scores.

GHOSTLIGHT remembers the people.

The final whistle is not the end of a memory.

🏟️ GHOSTLIGHT: Stadium of Echoes — Where memories never die.

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