Notes From a First Hackathon

A student on shipping in 36 hours and the people who made it click.
Ravi Kulkarni
Robotics PhD CandidateDecember 12, 20257 min read
Why it matters now
I went in expecting to learn a framework. I came out having learned how to scope a problem down to something two people could finish before sunrise.
This is a note for anyone who has been putting off their first one because they assume everybody else already knows what they are doing.
What 36 hours actually taught me
Four lessons, roughly in the order I learned them the hard way.
The compressed curriculum
- Cut scope first. Our original idea was four features. The version that worked was one, finished.
- Demo early. We built a fake end-to-end path in hour three, then replaced pieces. It meant we always had something to show.
- Ask sooner. Two hours lost to a build error that a mentor solved in ninety seconds.
- Sleep. The team that stayed up all night shipped less than the team that took four hours off.
Pitfalls to avoid
- Building for the judges. The projects people remembered were the ones the makers obviously wanted to exist.
- Starting with the stack. We spent an hour choosing tools before we could state the problem in one sentence.
- Skipping the room. The people were the point. The project was the excuse to meet them.
Frequently asked questions
Do I need to be good to go?
No. The gap between the strongest and weakest team was mostly scope discipline, not skill.
Do I need a team beforehand?
Not at all. Most teams formed in the first hour, and mixed-background teams did noticeably better.
What should I bring?
A charger, a rough problem you care about, and a willingness to throw the idea away by hour six.
Conclusion
The code is long gone. The people I met are still the reason I know anything about this field at all.
Ravi Kulkarni
Robotics PhD Candidate · Institute of Advanced Systems
Working on dexterous manipulation, exploring sim-to-real transfer, and able to help with reinforcement learning.
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