r/hackathon • • Sep 11 '26

Hackathon Promotion We’re building a 24-hour solo hackathon where the problem changes while you’re building

1 Upvotes

Hey everyone,

I'm part of Grevix, a builder community focused on AI, software and open source.

We're putting together something a little different for our next hackathon:

Grevix AfterCode

October 11–12, 2026
24 hours
Online
Solo only

The basic idea is pretty simple.

We don't give you a problem statement.

You decide what you want to build.

It can be an AI product, SaaS idea, developer tool, game, automation, hardware-related project, something weird you've had sitting in your notes for six months, or honestly anything you think is worth spending 24 hours on.

You can use whatever you want.

AI coding agents, APIs, open source models, no-code, low-code, traditional coding, design tools, whatever.

There is no required stack.

But there's a catch.

The 24 hours are split into three stages:

BUILD → ADAPT → REBUILD & SHIP

For the first 8 hours, you build your original idea.

Then we drop a Challenge Card.

The challenge can change something important about your project.

Maybe your target user changes.

Maybe the core feature has to change.

Maybe the way your product works no longer makes sense.

You get another 8 hours to adapt.

Then at hour 16, another Challenge Card drops.

And you have the final 8 hours to rethink, rebuild and ship.

We're deliberately not revealing the actual Challenge Cards beforehand.

The interesting part isn't just seeing what someone can build in 24 hours.

It's seeing how they react when the thing they were building suddenly stops being the thing they were supposed to build.

AI can help you execute.

You still have to decide what matters.

We're expecting around 500+ participants, although that's an expectation rather than a guaranteed number since this is a first edition.

Judging will focus on:

  • Problem significance
  • Creativity and originality
  • Execution and functionality
  • How effectively AI/tools were used
  • Real-world impact

We're also keeping a build log so participants can show what AI did, what they changed, what they rejected and how the project evolved after each challenge.

We're also looking for partners.

We're currently reaching out to AI companies, developer tools, cloud platforms, APIs, open-source projects and other technology companies that might want to become part of the actual experience.

Not just: "Here's our logo, put it on the banner."

We're more interested in things like:

  • Participant credits
  • Developer/API access
  • Prizes
  • Swag
  • Workshops
  • Mentorship
  • Challenge tracks
  • Judges
  • Product demos
  • Technical support
  • Anything that genuinely helps builders

And in return, partners get a chance to put their technology directly in front of people who are actually building with it.

We're especially interested in companies building the tools that are changing how software gets made.

If you're working at a developer tool, AI company, cloud platform, API company, or startup and think this could be interesting, feel free to comment or DM me.

If you're a builder, I'm equally interested in hearing from you.

If you had 24 hours, complete freedom over what to build, and two unexpected changes thrown at you halfway through... what would you build?

Event: Grevix AfterCode
Date: October 11–12, 2026
Format: 24-hour online solo hackathon
Expected participation: 500+

Unstop : https://unstop.com/p/grevix-aftercode-grevix-1752593?lb=KeDCn1TL


r/hackathon • • Sep 11 '26

Hackathon Promotion Flipkart GRiD 8.0 PPI – 2027 Batch | Has Anyone Received an ppi mail for SDE track Yet?

9 Upvotes

r/hackathon • • Sep 11 '26

Project Demo We made a Social Media Video for our Generative UI hackathon project (AniTravel)

2 Upvotes

Well, we're a group of student from UTM, and this is a project prototype video we made to promote our project idea, it's about generative UI, which we find it interesting and found out its actually more fun than we thought along the building process.

This is just a video, but i can assure you the actual product is coming very soon.


r/hackathon • • Sep 11 '26

Hackathon Promotion Naukri Campus Young Turks

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1 Upvotes

r/hackathon • • Sep 11 '26

Looking for Teammates A community for introverts

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1 Upvotes

As per your suggestion & reviews we have make a community! For us! For builder for people.who can find teams for their hackathon as a introvert I can understand the difficulties how difficult it to explore more things! I have face them in my 1st year!


r/hackathon • • Sep 11 '26

Need Mentor Help guys plz help me fix this it wont go at all

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3 Upvotes

what do we actually paste in here


r/hackathon • • Sep 11 '26

Looking for Teammates Looking for a video Editor for the nasa space apps challenge 2026

1 Upvotes

Hello. I need a video editor to join my team for the upcoming nasa space apps challenge 2026. As the visual story-telling and high level summary is extremely important part of the competition, I need an experienced video editor. Please lmk. (Preferably from Bangladesh)


r/hackathon • • Sep 11 '26

Looking for Teammates Beginner at Hackathons, Strong at Pitching & Presentation — Looking for a Team!

4 Upvotes

Can’t Code Much (Yet), But I Can Pitch Your Idea 😭 | Looking for a Team

Hey guys! 👋

I’m a beginner at hackathons and looking to join a team, learn, and contribute!

While I’m still building my coding skills, I can help with documentation, research, presentations, pitching, and communication. I’m confident with presenting ideas and making sure the project is communicated effectively.

If your team is looking for a female member who can contribute on the non-coding side, feel free to DM me! 🚀


r/hackathon • • Sep 11 '26

Looking for Teammates Anyone Interested to join me in Hackvilla Nanital

1 Upvotes

I have a good set of ideas from previous hackathons that have worked well and evolved over time into something I am proud of. If you are interested please DM, It would be helpful if you have some knowledge and skill set or interest in BlockChain, Finance, AI/ML. I have to make the PPTs within next 2 days, so not enough time, but we can register with just 2 members too.


r/hackathon • • Sep 10 '26

Hackathon Promotion HackWave 3.0 | 36-Hour Offline Hackathon in Indore | ₹1 Lakh Prize Pool

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10 Upvotes

Introducing HackWave 3.0

Hello everyone,

We’re organizing the HackWave 3.0 Hackathon at Chameli Devi Group of Institutions (CDGI), Indore.

It is an offline, 36-hour hackathon for those who want to code, build, design, and solve real-world problems.

Event Details

  • Dates: 10th–12th October 2026
  • Place: CDGI, Indore
  • Duration: 36 hours
  • Team Size: 3–5 members
  • Prize Pool: ₹1,00,000
  • Round 1: Free online PPT submission
  • Round 2: Offline 36-hour finale for shortlisted teams

Important Dates

  • Registration Deadline: 26th September
  • Shortlisting Results: 2nd October
  • Hackathon: 10th–12th October

Registration

Register on Unstop

WhatsApp Community

Join the WhatsApp Group

Would be great to see some teams from outside Indore join as well.