CheerpJ: The Hackathon

Organised by Leaning Technologies

Join this challenge to create a WebApp solution that integrates CheerpJ in the context of scientific software!

The winner team gets a sweet 500 GBP gift card 🚀!

CheerpJ is a tool to run Java code in the browser without requiring a local Java installation. This allows for a wide range of applications to be available in the browser client-side, which might otherwise not be accessible without local installations and dependencies.

Read more in this blog post .

How to participate

Step 1: Register & Join our Discord

Register your interest on this form and don’t forget to join our Discord server!

We use our Discord server as the main communication platform for this event, where we will be streaming live, giving technical support, and posting announcements!

Participants can register and join a team at any time before the project submission deadline.

Step 2: Secure your spot at the venue

This event offers a hybrid experience – you can fully engage online or, if you fancy, join us in-person for the opening and closing sessions.

If you want to attend in person, please secure your free individual tickets. Pssss… There will be gifts and snacks!

To fit everyone’s schedule, we will be hosting two opening sessions on Friday, 14th November. You can choose to attend 10:00 am -13:00 pm or 14:00 pm – 17:00 pm UK time.

Step 3: Team up and work on your project!

Now it’s time to put your hands on your project!

You can work on your project as a solo participant or in a team of up to 5 members. Don’t be afraid to find a team by engaging on our Discord server, meeting new people at the opening session, or by inviting your friends!

Our core CheerpJ developers will be helping via Discord text channel with any technical questions during this journey. Don’t miss out on the opportunity to learn from the experts!

Step 4: Submit, present, and await

Submit your creation by the deadline (Monday 1st of December at 11:00 am UK time). Instructions on how to submit coming up!

As a non-mandatory step, we encourage all teams to prepare a 5-minute presentation to share your creation with the community on the closing session! Presentations do not affect your final score, so don’t worry too much and just have fun ๐Ÿ˜‰

The final results will be published on December 15th on our Discord server.

Coding & Software Development
14th Nov 2025
10:00am - 1:00pm
Organised by Leaning Technologies
Hybrid

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