What is it
Build something this summer
Spend your summer evenings and weekends building a project you actually care about, then show it off and win merch.
Summ3r Cod3 runs through July and August. You can build ANY project you want — a web app, a game, an AI experiment, an Arduino build, literally anything. The goal is to ship something and share it with the community.
Not sure what to build? Some ideas:
- That app you keep complaining doesn't exist
- Something to help with your hobby
- A game your friends might actually play
- A tool that makes your coding life less painful
- Something weird with AI
- That Arduino project collecting dust in your drawer
How to join
It's easy
Pick a project, build it over summer, submit by August 30th.
- Pick something fun to build — whatever interests you
- Code away — spend your summer evenings and weekends on it
- Share your progress — show us what you're working on, even the messy parts
- Finish by August 30th — or at least get it to a showable state
You can ask questions in Discord throughout the summer, join casual check-ins to show progress, and get help from other participants when you're stuck.
Prizes
Win a Cod3rs shirt or hoodie
Merch goes to the winners of the public vote. Here's what you need to qualify.
- Be real — Your GitHub account should exist before July 1st, 2025, OR have social media linked to your LinkedIn
- Be in Slovakia or Denmark — That's where we can ship prizes
- Show summer activity — We need to see you were actively coding during July–August
- Win the public vote — Only projects that receive the most votes in the public opinion voting will win merchandise
Timeline
Key dates
- July 1, 2025 — Kickoff day. Start building!
- All summer — Work on your project whenever you can
- August 30, 2025 — Last day to submit (yes, it's a Saturday)
- Late August / Early September — Project showcase, public vote, and prizes sent out
FAQ
Common questions
Can my friends and I work together?
Totally! Just make sure everyone who wants a shirt meets the requirements.
I already started something, can I use that?
Sure, but you need to actually work on it during the summer. We can tell the difference!
Do I need to be some coding genius?
Definitely not! We've seen amazing projects from beginners. Just build something YOU think is cool.
What programming language should I use?
Whatever you want! Use what you know or what you want to learn.
Get started
Ready to join Summ3r Cod3?
Start thinking about what you might build and get ready for a fun (and occasionally frustrating) summer of coding! Questions? Ping us on Discord — we usually respond within a day or two unless we're on vacation.