12 Hours, One Developer, and My First Solo Hackathon

Dhairya Mathur — Sat, 31 Oct 2026 23:43:05 +0000

12 Hours, One Developer, and My First Solo Hackathon

My experience building DocDrift at Hacktoberfest 2026.

Some experiences teach you more in a few hours than weeks of preparation ever could.

My first solo hackathon was one of them.

At Hacktoberfest 2026, I took on a challenge that pushed me beyond simply writing code. I had to understand the problem, plan a solution, build it, test it, document it, and get everything through a proper GitHub workflow—all on my own.

My project was DocDrift: an Automated Documentation Drift Detection System.

And the clock was ticking.

The Problem: When Code Changes but Documentation Doesn't

Documentation is supposed to help developers understand and use software. But there's a familiar problem: code evolves, while documentation sometimes stays behind.

A command-line option gets renamed. A function changes. An example becomes outdated. Yet the README still tells developers to use the old version.

These small inconsistencies can create unnecessary confusion and debugging work.

I wanted to build a tool that could help detect this gap between code changes and documentation.

That became DocDrift.

Building DocDrift

The goal was to create a system that could inspect code changes and identify potentially outdated documentation references.

Rather than relying entirely on AI, I built the core detection around deterministic logic. The project also included an optional experimental AI component, keeping AI-generated suggestions separate from the core detection process.

One of the most satisfying parts was creating a reproducible demonstration.

I prepared a sample code diff in which a command-line flag changed from --deadline to --timeout-limit, while the documentation still referred to the old flag.

DocDrift detected the outdated reference and identified the replacement.

It was a small example, but it demonstrated the central idea clearly: documentation should evolve alongside the code it describes.

The 2 AM Hackathon Moment 🍔

Hackathons aren't only about code. They're also about the little moments that make a long session memorable.

Around 2 AM, one team received a 750 ml drink, a burger for each member, and a packet of stickers from our college's Developer Club.

As someone participating in the hackathon, that small moment became part of the experience I know I'll remember.

After hours of focusing on problems, code, and deadlines, even a burger and a few stickers felt special.

It was a reminder that a hackathon is more than a competition. It's people working through challenges together, sharing an environment, and making memories along the way.

The Part That Tested Me: GitHub

Writing code was only one part of the challenge.

I also had to work through the GitHub workflow: branches, commits, GitHub Actions, pull-request requirements, and getting the project into a merge-ready state.

I ran the test suite and got 124 tests passing.

Then I pushed the changes and checked the CI workflow. GitHub Actions reported a successful run, and the pull request showed that all checks had passed with no merge conflicts.

Finally, the pull request was merged.

That green status was satisfying, but what mattered more was understanding the process behind it.

A project isn't finished just because the code runs on your machine. Testing, documentation, version control, and collaboration workflows are all part of building software.

This hackathon gave me practical experience with that entire process.

What I Learned

Looking back, a few lessons stand out.

1. Break the problem down.

A large idea becomes less intimidating when you turn it into smaller, testable pieces.

2. Test your assumptions.

Passing tests provide evidence that your implementation behaves as expected. They also help you catch regressions as you make changes.

3. GitHub is more than a place to store code.

Branches, commits, pull requests, and CI checks form a workflow that helps developers review and validate changes.

4. A working implementation needs a reproducible demonstration.

Being able to show the input, run the tool, and inspect its actual output makes a project easier to understand and evaluate.

5. Building solo teaches you to take ownership.

When you're working alone, you have to make decisions, investigate problems, and keep moving when something doesn't work as expected.

The Result

By the end, DocDrift had a public GitHub repository, an MIT license, project documentation, a reproducible example, an automated test suite, and a successful CI run.

The pull request was merged.

For my first solo hackathon, that was a meaningful milestone.

Not because it made me an expert overnight, but because it gave me a chance to practise the full development workflow on a real project.

What's Next?

DocDrift is a starting point, not the end of the journey.

There is more to explore in detecting documentation inconsistencies, improving the quality of findings, and making the tool easier to integrate into real development workflows.

For now, I'm taking away something more valuable than a green checkmark: experience building, testing, and delivering a project under a deadline.

One problem. One project. One developer.

And a reminder that the best way to learn development is to build something, encounter problems, and work through them.

Project: DocDrift — Automated Documentation Drift Detection System

#Hacktoberfest #Hackathon #OpenSource #Python #GitHub #SoftwareDevelopment

DEV Community: Dhairya Mathur

12 Hours, One Developer, and My First Solo Hackathon

12 Hours, One Developer, and My First Solo Hackathon

The Problem: When Code Changes but Documentation Doesn't

Building DocDrift

The 2 AM Hackathon Moment 🍔

The Part That Tested Me: GitHub

What I Learned

The Result

What's Next?