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3/5/2026

6 PM - 9 PM [CET]

Online

OpenAI Codex Community Meetup - Wrocław

Date

Thursday, March 5, 2026

Time

6 PM - 9 PM [CET]

Location

Wrocław

Online

OpenAI Codex Community Meetup - Wrocław

Join Wrocław’s first official OpenAI Codex meetup on March 5, 2026. Meet and connect with developers building with Codex.

Date

05 March 2026

-

Time

6 PM - 9 PM [CET]

Location

Wrocław

Online

OpenAI Codex Community Meetup - Wrocław

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Organizer

Organizer

Presented

Callstack & Codex

@

Speakers

Speakers

Featuring

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Featuring

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We’re hosting Wrocław’s first official OpenAI Codex Community Meetup.

Join us for an evening dedicated to Codex, OpenAI’s coding agent that helps you build and ship faster.

The meetup will bring together developers who are curious about coding agents as well as those already experimenting with them in practice.

The focus is on sharing updates, real experiences, and open discussion around how AI is influencing modern software development. You’ll hear from OpenAI team & experts already using Codex in their daily work and connect with peers from the tech community.

Agenda

6:00 PM Doors open
‍6:10 PM Welcome
6:15PM Sharpen the axe first: think before you vibe, by Marcin Warno (Grafit)
‍6:35 PM Codex at scale - hands on, buidling an Open Source ERP (Open Mercato), by Piotr Karwatka
6:50PM Show & Tell
‍7:30PM Networking

Talks abstracts

Sharpen the axe first: think before you vibe

The real work happens before you open the chat. I'll share my approach - why I invest time upfront on a PRD, design system, and starting prompt before jumping into prompting. I'll walk you through Squeeze, a native macOS app built with Codex that solves a real daily problem at our agency.

Marcin Warno, COO at Grafit

Codex at scale - hands on, buidling an Open Source ERP (Open Mercato)

Piotr will show what works for them in building an Open Source ERP with 40+ contributors. What changed, what not, and what the software engineering looks like at the AI edge. Features presented: custom skills, Task Router / AGENTS.MD, Playwright integration testing framework; techniques: spec-driven development, code review on steroids, and feasibility studies.

Piotr Karwatka, Co-Founder at Open Mercato + Catch the Tornado / OSS founder & contributor

‍

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OpenAI Codex Community Meetup - Wrocław

Join Wrocław’s first official OpenAI Codex meetup on March 5, 2026. Meet and connect with developers building with Codex.

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Insights

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AI

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it forward!

At Callstack, we work with companies big and small, pushing React Native everyday.

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On-device AI

Run AI models directly on iOS and Android for privacy-first experiences with reliable performance across real devices.

AI Knowledge Integration

Connect AI to your product’s knowledge so answers stay accurate, up to date, and backed by the right sources with proper access control.

Generative AI App Development

Build and ship production-ready AI features across iOS, Android, and Web with reliable UX, safety controls, and observability.

AI Vibe Coding Cleanup

Turn AI-generated code from tools like Cursor, Claude Code, Codex, or Replit into production-ready software by tightening structure, validating safety, and making it stable under real-world usage.