• We joined the Paris edition of the {Tech:Europe} hackathon.
• We offered a special prize for the best team using SLNG APIs to create a voice experience.
• It was also a chance to showcase our new SDKs and agent skills.

80 participants. Ship by 7pm. The Hexa office was loud all day. We got to watch teams work through real problems in real time, and a few projects stood out.

Team: Mohamed Grich, Filipp Trigub, Daniel Gagliardi, Emma, Pietro Putelli

ApplePie helps families collect and preserve stories from their elders. You record a conversation, and the app labels and connects it to previous stories so nothing gets lost. Once a memory is saved, you can generate a podcast or a short film from it. The UI was creative, the concept was personal, and the execution was solid for a single day. ApplePie won first place.

Team: Tihado, Tran Thi Hong Hanh, Ngoc Viet Tien, Chau Thi Phuong Nhi, Le Tan Nhat Linh, Lan Wy Bui

This was our favourite. Lumen is a voice-first lesson authoring tool. A teacher speaks or types a lesson intent, and Lumen turns it into a full lesson canvas: learning objectives, a hook, an explanation, a worked example, practice activities, a quiz, reflection prompts, citations, images, video, audio narration, and a saved HTML file you can reopen later.

The design was clean and the voice interaction actually worked well. It makes lesson creation feel less like admin and more like something you'd want to do. Lumen took 3rd place overall and won the SLNG prize.

Ashok built a voice agent for matchmaking at hackathons. Paul-Louis built one to help monitor glucose levels. Emile built a full business intelligence platform with different agent personas. All in a single day.

It's wild what people ship in a few hours. Coding agents definitely help teams move faster and make things look more polished, but in the end it’s still on the hacker to come up with a strong idea, pitch it clearly, and execute well under pressure.

We came home from Paris with a lot of energy and a few ideas of our own. Next hackathon: London, June 27.

If you're organizing a hackathon and want us involved, reach out. We can help with mentorship, tooling, and prizes.

Happy hacking!