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Learning to Build Again

The Curious Case at a Hackathon πŸ€–

Last weekend I did something I had not done in almost eight years.

I applied, got selected, and attended a hackathon. πŸš€

Not just any hackathon, but the GenAI Genesis Hackathon in Toronto, a room full of brilliant students, developers, and AI enthusiasts building wild things with LLMs, voice interfaces, and agent frameworks 🀯

And then there was me.

A computational biology postdoc who usually spends his days with cancer genomes and single-cell data, and occasionally being a couch potato πŸ˜…, suddenly surrounded by:

undergrads and even school kids speaking fluent GenAI + GenZ language 🧠⚑

Let me tell you something honestly:

I felt old. πŸ˜…


The First Shock ⚑

The vibe was electric.

Teams were forming rapidly. People were pitching ideas like:

  • AI agents πŸ€–
  • voice-first assistants πŸŽ™οΈ
  • autonomous workflow engines βš™οΈ
  • things that sounded like startups already raising Series A πŸ˜„

Everyone seemed to know each other or just clicked instantly. Some already had teams. Most had a clear idea of what they wanted to build.

Meanwhile, my brain:

β€œOkay… what exactly was I thinking when I signed up for this?” 😢

For a moment:

Maybe I don’t belong here anymore.

But then something interesting happened.

Curiosity won over insecurity.

And I stayed.

P.S. I finally saw the Computer Science department at University of Toronto and I was like 😍 ❀️ Never imagined life would bring me here one day πŸ™ˆ


When You Can’t Find a Team… Become the Team πŸ’»πŸ”₯

I tried forming a team on Discord (A new medium for me!!).

A few conversations happened. Nothing concrete.

And then came a simple thought:

If I can’t find a team, I’ll just become the team.

That decision changed everything.

No coordination overhead. No waiting. No alignment issues.

Just:

pure hacker mode ⚑


The Idea πŸ’‘

Healthcare is something I genuinely care about. Simple, real-world ones.

Like: remembering medications and maintaining daily health habits

So the idea became:

MediMate β€” A Proactive Wellness Agent πŸ₯

A lightweight AI system that:

  • reminds people to take medication πŸ’Š
  • tracks daily habits πŸ“Š
  • suggests simple health improvements πŸ₯—
  • interacts conversationally πŸ€–πŸ’¬

The goal was not perfection.

The goal was:

build something real in ~36 hours


The Hacker Mode Experience ⚑🧠

Something magical happened when I started coding.

All the noise disappeared.

No overthinking.
No imposter syndrome.
Just flow.

idea β†’ code β†’ test β†’ break β†’ fix β†’ repeat πŸ”

The stack:

  • React Native (Expo) πŸ“±
  • FastAPI backend βš™οΈ
  • LLM integration with HuggingFace models πŸ€–
  • basic logging + agent loop

But:

it worked.

And that feeling? Still undefeated.

Devpost:
https://devpost.com/software/medimate-proactive-wellness-agent-via-llms

GitHub:
https://github.com/Arvindiyer/medimate

Video Demo

Note: Vibe coding is fun πŸ”₯


The Emotional Rollercoaster 🎒

This weekend was not just technical.

It was emotional.

At different moments I felt:

  • excited ⚑
  • intimidated πŸ˜…
  • curious πŸ€”
  • nostalgic πŸ’­

Seeing younger students building fearlessly reminded me of my early days.

And yes, at one point I even thought:

β€œAm I becoming irrelevant?”

But then a counter-thought came:

Experience does not slow you down. It gives you perspective.

And that perspective matters!


A Quote I Made Up (Feel Free to Steal) πŸ˜„

Sometimes you don’t go to a hackathon to win. You go to remember why building once felt magical.
β€” A slightly older hacker with a beginner’s mind


What I Gained 🎯

Not a prize.
Not a ranking.

Something more valuable:

I rediscovered the joy of building.

And honestly, that was enough.


The Unexpected Benefit 🧠⚑

Hackathons reset your brain.

Hackathons remind you that ideas can become reality fast.

That mindset shift is powerful.

Also took baby steps into the crazy AI world πŸ’­βœ¨


A Small Personal Reflection πŸ’­βœ¨

This weekend reminded me why I started programming.

But because:

building felt magical.

Watching code turn into something real still feels like wizardry πŸ§™β€β™‚οΈ

And honestly…

that feeling never gets old.

Even if you do. πŸ˜„


Final Thoughts 🌱

There were some amazing projects that genuinely inspired me.

They gave me new energy, not just for side projects, but even for my research.

Checkout projects here:
https://genai-genesis-2026.devpost.com/project-gallery

A Small Nerd Moment πŸ€“πŸ“Š

Of course, I could not resist.

I scraped some data and did quick analysis.

And one pattern stood out:

Voice + Conversational AI is the next wave πŸŽ™οΈπŸ€–

Some visuals:

Genai Project Heatmap. Genai Project AI counts. Genai Project Tag Cloud.

Disclaimer

This post is just my personal experience from the GenAI Genesis Hackathon.

Note:
AI helped refine this writing and also generated the images.