Tokyo AI Hackathon

Last month, Favicon of x.comYen and I flew to Tokyo to join the Tokyo AI Hackathon, hosted by Favicon of x.comRaycast Community Japan. It was my first time traveling abroad for a community event, so the excitement was off the charts.

We arrived early on the day of the event to meet Favicon of x.comThomas, Favicon of x.comPedro, and Stephanie at their hotel, after following Raycast for so long and only seeing them on X or YouTube, finally meeting them in person felt surreal, almost dreamlike.

Met the team

The Hackathon

The challenge of the hackathon was simple but thrilling: build a Raycast AI Extension on the spot, and see who could come up with the most creative and impactful idea. I knew right away that I wanted to make something different, something that would stand out.

I wondered: Could I turn Raycast AI Chat into a real Vibe Coding tool through an AI Extension?

So I started building my first tool — list-dir. The moment it ran successfully and began listing the directory structure layer by layer, I got instantly hooked. From there, I added read-file, apply-edit, grep, and other tools commonly used by agents.

Bit by bit, it started behaving like a mini version of Cursor: it could understand my project, follow my instructions, and even apply changes directly to the code.

Introducing Ray Code

After several rounds of judging, I was incredibly honored to win third place. Huge thanks to all the judges! If you'd like to try the extension yourself, you can check it out here:

Favicon of www.raycast.comRay Code - Raycast Store

After the event

Beyond the hackathon itself, I was really happy that this event gave me the chance to finally meet Favicon of x.comFlorentin from Vercel. He shared how Vercel uses Raycast internally and how they build their own extensions, which was super inspiring.

Hack together in the after party

I also had great conversations with Favicon of x.comJavi and Favicon of x.comMatthew from Vercel. They talked with me about career paths, personal growth, and many other topics. Everyone was incredibly kind and open, it really meant a lot.

Wrap-up

Team Raycast

I'm truly grateful to Raycast Community Japan for organizing such a fantastic event. This trip allowed me to meet so many amazing people and gave me the rare chance to practice speaking English, something I don't get to do often back in Taiwan.

I'm already looking forward to joining more international community events in the future. Can't wait to meet everyone again!