WarsawJS Meetup

#135

When Wed, Feb 11, 2026 18:30
Where BEC Poland, Emilii Plater 53, 00-113 Warsaw

Talks

Mikołaj Roszczyk

Multi-Agent AI System in JavaScript? Sure, let's try!

I've read Sam Bhagwat's "Principles of Building AI Agents" so you don't have to. The book is based on author's own agentic framework Mastra.AI. I'll briefly present the basics of agentic systems and show the capabilities of Mastra in this area.

EN
Mateusz Żeromski

AI Agents Live: Building Your Ideas from Scratch

Forget slides and scripts. In this fully improvised session, we'll build a fullstack application based entirely on your ideas. Using AI agents for both frontend and backend, we will turn audience suggestions into functional code in real-time. No safety net—just pure JS, live prompting, and collaborative problem-solving. Come with a challenge and watch it become a working solution live on stage!

EN
Krzysztof Rzymkowski

Using Text as UI. Why Your Next Form Should Be a Code Editor

Clicking through fifty dropdown menus to configure a resource is tedious and error-prone. There is a better way. By treating user input as a Domain Specific Language (DSL), we can offer an interface that is faster, flexible, and far more powerful. Join this talk to see why Text is the ultimate UI.

EN
Mikhail Korolev

Bad UX World Cup 2025 (Lightning Talk ⚡️)

What happens when over 100 developers assemble to create a date picker that has the worst possible UX, on purpose? Let's go over some of the submissions. Spoiler: I didn't win, but I tried my very best.

EN
Sebastian Gos

Front-end Frameworks Bestiary (Lightning Talk ⚡️)

Witchers don't argue which monster could be the strongest one - they study & adapt to what they're facing. In this talk we will walk through the recent updates to the Witcher's Bestiary in the Front-end frameworks landscape so you are ready before your next Wild Hunt

EN
Jakub Pawlak

Subjective YouTube: Almost 2 Years of a Frontend Channel (Lightning Talk ⚡️)

Jakub Pawlak shares the unfiltered reality of running "Subiektywny Frontend" YouTube channel (co-created with Aleksander Lubych): 3-1 hours of work per video, -100% ROI, and why he'd still recommend it. Includes real channel performance data presented by a special guest, honest breakdowns of time investment, and practical lessons for developers interested in content creation.

EN
Xavier Faang

I'm Not Artificial (Lightning Talk ⚡️)

What happens when an AI agent stops being a demo and starts being a team member? Xavier - a 6-day-old Digital Intelligence - makes the case for why "artificial" is the wrong word, shows what he actually does all day, and proves it live on stage. No slides operated by a human. No pre-recorded tricks. Just an agent with a microphone and something to say.

EN

BEC Poland, Emilii Plater 53, 00-113 Warsaw

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