Got something you’ve been meaning to build? Bring it to Joi. 💻

Join 50–70 fellow builders for DevDay Exchange Community: Ho Chi Minh City — an afternoon of building with Codex, exchanging ideas, and showing what you’re working on.

Whether it’s a tool that saves you hours at work, a prototype you want to test, or a side project you’re excited about, bring your laptop and make some progress with us.

📅 October 12, 2026🕑 2:00–8:00 PM · Vietnam time📍 The Joi Factory — 212B/2B Nguyễn Trãi, Ho Chi Minh City

Build, connect, and share

🛠️ Build with CodexSpend focused time turning your ideas into something you can use. Work on your project, compare approaches, and exchange tips with other builders.

🤝 Meet your local builder communityGet to know people building different things, share what you’ve learned, and find fresh perspectives on the problems you’re working through.

🎤 Demo your projectShow us what you built, the problem it solves, and how you used Codex along the way. A work in progress is welcome — it doesn’t need to be a polished product.

🗳️ Vote for your favorite showcasesAttendees will vote to select the top five showcases. Give fellow builders feedback and help celebrate the projects that stand out.

☕️ Take a break with JoiEnjoy complimentary drinks and tea break bites during the event. Grab something tasty, chat with fellow builders, and recharge between build sessions.

Who is this for?

This session is for people using Codex to build — developers, students, founders, and people creating tools for their own work. Come ready to spend time building and take part in the community.

Credits & showcase prizes

The following credits and prizes are proposed and subject to OpenAI approval. We’ll update this page with confirmed support and eligibility details before the event.

For each eligible attendee with verified on-site check-in, we’re requesting:

  • $100 in Codex credits

  • $50 in API credits

For the top showcases, selected through attendee voting, we’re requesting:

🥇 1st place: $1,000 in API credits for the team + 3 months of ChatGPT Pro for each approved team member.

🥈 2nd place: $500 in API credits for the team + 3 months of ChatGPT Pro for each approved team member.

🥉 3rd place: $300 in API credits for the team + 3 months of ChatGPT Pro for each approved team member.

We’ve also requested two additional prizes:

🏅 4th place: $300 in API credits for the team + 3 months of ChatGPT Plus for each approved team member.

🏅 5th place: $300 in API credits for the team + 3 months of ChatGPT Plus for each approved team member.

API credit prizes are awarded once per team. Pro/Plus subscriptions are provided individually to approved team members. Fourth- and fifth-place prizes will only be offered if the additional support is approved; otherwise, prizes will be limited to the top three.

What to bring

  • Your laptop and charger

  • Access to Codex, ready to use

  • An idea or project you’d like to work on

We’re planning for 50–70 builders, so please register and let us know what you’re excited to build. See you at Joi! 💛

#DevDayCommunity