Lenny’s Newsletter Meetup in Prague (with free drinks courtesy of Matic)

Welcome & Opening Speech Silvana Rosales (Everpure, Engineering Manager) Annotations: From a House of Cards to a Winning Hand A tour into Java & Kotlin annotations, from what you learned in school to real-world impact. Michal Stanke (Everpure, Tech Lead) Power and Perils of AI Aided Coding AI coding uses intuition, assistance, or rapid iteration to build software without traditional design formality. It can feel liberating and fast, but it comes with hidden risks. This session takes a closer look at both the advantages and pitfalls of this emerging approach. Attendees will explore when ai coding can boost creativity, collaboration, and speed, and when it can lead to fragile, hard-to-maintain systems. Through practical examples and guidelines, you will learn how to harness its strengths while avoiding the traps that undermine quality and long-term sustainability. Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., an instructional professor at the University of Houston, and creator of dev2next and Arc of AI conferences. He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at several international conferences. Venkat helps his clients effectively apply and succeed with sustainable agile practices on their software projects. Venkat is a (co)author of multiple technical books, including the 2007 Jolt Productivity award winning book Practices of an Agile Developer. You can find a list of his books at . We’re grateful to our venue sponsor, Everpure, for hosting and supporting the CZJUG community.

AI Reality-check 2026: Multi-agent systems at work 📅 4. listopadu 2026 📍 Microsoft HQ, Praha 4 Letošní AI Reality-check se zaměří na to, kde už multi-agentní systémy dávají smysl, kde stále narážejí a co jejich nasazení mění ve fungování velkých firem. Čekají vás 2 otevřené panelové diskuze, 4 konkrétní příběhy z produkce a praktické ukázky. Těšit se můžete například na Tomáše Čupra, Tomáše Havryluka, Michala Valka, Jana Šedivého a další. Na jednom místě se potkají lidé se zkušeností z Rohlik Group, Medevio, BottlecapAI, Duvo.ai, Microsoft, Apify, Komerční Banka, UNIQA, Dr. Max, Direct, BigHub a také bývalé zástupce Alza, Meta, Google DeepMind nebo IBM. #Panel 1: The state of AI research – Průlomy, limity a kontroverze Kde je dnešní AI skutečně, bez hype a vzdálených predikcí? O scalingu, reasoningu, agentech, reliability, evals a budoucnosti AI výzkumu budou debatovat lidé, kteří se na něm sami podílejí ve světovém měřítku. 🎙️ Michal Valko, Isara Labs, ex-Meta, ex-Google DeepMind 🎙️ Jan Šedivý, PromethisAI, CIIRC ČVUT, ex-Google, ex-IBM 🎙️ David Herel, BottleCapAI Moderuje Tomáš Kubica (Microsoft) #Panel 2: Z AI projektů na AI-first firmy Co se musí změnit, když AI přestane být sada izolovaných use casů a začne měnit procesy, rozhodování, leadership a operating model celé firmy? 🎙️ Tomáš Čupr, Rohlik Group, Duvo.ai 🎙️ Tomáš Havryluk, Medevio, ex-Alza 🎙️ Jan Čurn, Apify Moderuje Kateřina Lesch (AI Group Manager, Dr. Max) Příběhy z produkce & praktické ukázky Jak vypadají AI systémy v produkčním prostředí zavedených velkých a enterprise firem? Ukážeme konkrétní projekty z velkých firem, co v nich AI skutečně dělá, jak se dostaly do produkce a kde při nasazení narazily na limity, které v prvním demu nebyly vidět. V programu se objeví například zkušenosti a projekty napříč odvětvími z UNIQA, Komerční banky, Dr. Max, Direct a BigHub. Další firmy a konkrétní ukázky budeme postupně zveřejňovat po jejich potvrzení. 👥 Konference je určena primárně pro CEO, CIO, CTO, CDO

No long talks. No panels. Just live AI demos. ⚡️ Join us at Apify's new HQ for a fast-paced evening of short live demos from the people pushing AI forward in Prague. Expect new products, agents, developer tools, experiments, and probably a few things that might break live. 🙂 Each team gets the stage to show what they’ve built (max 5 minutes), followed by a quick Q&A, all in English. This format ensures fun! Participation is free, but capacity is limited, so register early to guarantee your spot. ⚙️ Demos Macaly / Petr Brzek, CEO TopK / Marek Galovic, CEO Boost.space / Tadeas Marek, CEO Apify / Robert Crupa, AI Engineer FifthRow / Jan Beranek, CEO ArtifactBridge / Jakub Kubis, CEO Duvo.ai / TBD Modree / Tomas Dedek, CEO Agnes by Keboola / Petr Simecek, founder Expo / David Mokos, AI engineer ... maybe more If you'd like to demo, please get in touch by clicking "Contact the Host". ⏱️ Schedule 17:30 Doors open 18:30 Demos start 20:00 Networking AI Demo Night is part of Dny AI 2026, the Czech Republic’s largest AI festival organized by our friends from prg.ai

Bloom Club Build Night hosted by Make Whether you're technical or not, you'd like to build an agent that helps a hobby or household admin, thinking of building your side-project that makes an income, a business owner improving workflows with AI. We're meeting to help you launch it in one night. This workshop is a laptops open, walkthrough of building workflows using apps like Claude. Bring the thing you keep thinking about. Test an idea on someone else at the table, or just build while we walk around and make sure you remain unstuck. Focus hours to actually move the thing forward, and at the end we pitch it in a share out session. Event Details: • No technical knowledge or pre-requisite needed, we'll cover everything from branding to web hosting. • We arrive around 17:45. Event starts at 18:00. • There will be some refreshments provided. We will send a small optional assignment before hand and a guide on what to have installed on your computer, so that you can get started right away. Seats are limited to 20 people. Note: this is a women and non-binary-only event.

Inspiration 2026, Trendy Leaders, OREA Hotel Andel's Praha.