PostgreSQL

***\*\*To register for the meetup, please register via Luma using the link below\*\**** Register via Luma -> [https://luma.com/sszyn5y0](https://luma.com/sszyn5y0) # ​**18:00 - Mingling 🎉, pizza 🍕, and beers 🍻18:30 - lectures**20:00 - Go Home!------------------------------------------------------------ ​ **Gal Lerman \| Tech Lead \| Papaya** **One Process to Rule Them All: How We Killed Our Microservices — for Testing, Dev Envs, and Local Development** ​Microservices are great in production. Everywhere else, they're expensive, slow, and painful. We'll show how we collapsed our entire service fleet into a single process — first to replace our mock-heavy tests with fast, real E2E tests that boot every service in-process; then to slash Kubernetes dev environment costs by replacing a pod-per-service with a single pod; and finally to enable fully local development with instant feedback, zero deploy cycles, and real debugging. Same architecture, three wins. ​ **Stav Levinger \| Senior Full Stack Engineer \| Riskified** ​Unblocking the Node.js Event Loop: Real-World Troubleshooting In a NodeJS Consumer ​What happens when a perfectly healthy and robust Node.js service suddenly stops responding, fails its health checks and gets killed by Kubernetes? ​In this talk, I’ll share a real production incident from a high-throughput, Kafka-driven system, where a single consumer began collapsing under unusually large datasets. ​What initially looked like a routine performance issue quickly turned into a deeper investigation: growing lag, stalled processing, misleading signals, and a bottleneck hiding far from where we first looked. ​We’ll walk through the debugging journey step by step, examine practical profiling techniques to narrow down the search, and ultimately uncover the real root cause. ​**Or Kaplan \| Director of Engineering \| Remitly Israel** ​Implementing Distributed locking algorithms in Node.js ​Description ​Protecting shared sensitive shared resources from race conditions is hard enough when running in a single process. Let's make it harder: how do you do it in a distributed system? Scale it up and run it in a production system that serves millions of transactions. See where we’re going here? ​In this talk, I will take you along our journey of implementing distributed locks in Node.js, how they broke, and how we evolved our algorithm over time to support thousands of requests per second in a mission-critical financial system. We will discuss different ways to implement distributed locking, using different tools and approaches. Learn how to improve performance to support more than 10,000 transactions per second which are all trying to access the same resource while running workflows on multiple data centers and how to verify it doesn’t break. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- ​​ Kindly be informed that attendance at the meetup is on a first-come, first-served basis until capacity is reached. Although a place has been reserved for you (after click on attend button), please note that it **does not guarantee your spot.**

Signing up is via [LUMA](https://luma.com/93cxbnjf). https://luma.com/jtpiaz48

בסדנה נכיר את העקרונות הבסיסיים של תחום הריתוך, נתנסה בעבודה עם כלי העבודה השונים, נחשף לסוגי הריתוך השונים ותצברו ידע שיסייע לכם להבין את התהליך ואת טכניקות העבודה הנדרשות. עלות: 240 ש"ח למבוגר/ת. לתושבי יהוד-מונוסון: 190 ש"ח למבוגר/ת. שימו לב: לא מספיק להרשם פה, יש להרשם גם בקישור הבא [https://www.makelab.org.il/registration/welding](https://www.makelab.org.il/registration/welding)

\*The meeting will be held in Hebrew. . . . **Winning the Room: A Masterclass on Pitching & Presentations** Your pitch is your most important tool as a founder. Whether you are standing in front of investors, partners, or your very first clients, the ability to control the room and deliver a sharp, persuasive message is what turns a vision into a reality. This masterclass provides you with the practical, high-stakes tools you need to master your performance. . . **Why You Should Join (and why does it worth you time & money)** As an entrepreneur, your time is your most valuable asset. This webinar moves past theoretical advice and focuses on the "how-to" of public speaking and persuasion. This session is designed to be highly practical, focusing on the "how-to" of successful pitching. We will dive deep into the following: * **Practical Pitching Tools:** How to craft a focused and compelling pitch that hits all the right marks. * **Effective Communication:** Techniques to ensure your message is not just heard, but understood and remembered. * **The Power of Body Language:** Learning how to project authority and leadership through your physical presence. * **Building a Personal Story:** How to weave your personal narrative into the business case to create a lasting emotional connection. . . **The Bonus:** In a special interactive segment, you will have the chance to present **your own pitch live** during the webinar and receive immediate, professional feedback to refine your delivery. This is a rare opportunity to get expert eyes on your work before your next big meeting. . . **Important notice ‼️** This is a focused investment in your professional growth, designed to ensure that the next time you stand in front of a decision-maker, you are fully prepared to win. For that reason, we ask for a symbolic participation fee of 44 ILS. . . . **About the Speaker** The masterclass will be led by **Elad Hollander**, a serial entrepreneur and a seasoned expert in the global startup ecosystem. Elad Hollander is the Accelerator Program Director at the Resilience & Health Innovation Hub, where he designs and delivers end-to-end curricula for high-impact entrepreneurial programs. With a decade of experience at the intersection of founding, fundraising, and mentoring, Elad has guided more than 200 startups through the journey from raw ideas to investor-ready ventures. As a serial entrepreneur, Elad served as the Co-Founder & CEO of New York-based Spoilme Inc and is a Founding Partner at the sports tech agency Partners for Sports. With years of experience guiding founders through high-pressure situations, he brings a unique blend of strategic insight and practical performance coaching. . . . **About Rescue** This masterclass is held as part of the development phase for **Rescue**, an app providing mental first aid for anxiety and stress. Founded during the events of October 7th, Rescue already serves over 10,000 users. Having successfully reached our initial funding goal, all contributions now go directly toward further technological development and expanding our reach to hospitals and medical centers. . . . **Registration & Important Information** Please note that clicking "Going" on Meetup does not secure your spot. Attendance is strictly managed through the project’s Headstart page. 1. **How to Register:** Visit the campaign link below and select the reward titled **"Pitch & Presentation Masterclass"** for 44 NIS. 2. **Deadline:** Registration will close on **April 30, 2026**. 3. **Contact Details:** You must provide a valid email address during the Headstart checkout process. 4. **Confirmation:** Only those who purchase the specific reward will receive an official confirmation email and a calendar invite with the webinar link. . . . **Link for Registration and Supporting Rescue:** [Click here to register on Headstart](https://headstart.co.il/project/89269?utm_source=meetup)

The TLV PUG is back! Join us for an afternoon of talks, food, drinks, and good company at Microsoft Reactor Tel Aviv on Level 50 with those incredible skyline views. This time we've got two great talks lined up. Oh, and there will be swag. You're welcome. **Talks:** **From Zero to AI Agent: Building with Microsoft Foundry Agent Service** *[Engin Diri](https://www.linkedin.com/in/engin-diri/) \- Senior Solutions Architect\, Pulumi* AI Agents are everywhere right now, but how do you actually build and deploy one without losing your mind? In this talk, Engin will walk through how to use Microsoft Foundry Agent Service together with the Microsoft Agent Framework and Pulumi to spin up, configure, and manage AI agents, all as code. We'll go from an empty project to a working agent, covering the gotchas and the good parts along the way. **OpenClaw Bots Done Right: No Security Nightmares Included** [Dor Serero](https://www.linkedin.com/in/dorser/) \- Principal Architect\, Microsoft So you want to run an OpenClaw bot, or any agent for that matter. Cool. But have you thought about what happens when things go sideways security-wise? In this session, Dor will share real-world lessons on running OpenClaw bots without the kind of setup that keeps you up at 3 AM wondering if something just went horribly wrong. We'll cover common pitfalls, hardening tips, and practical patterns to keep your bot humming without opening the door to trouble. **Schedule:** * 5:00 PM — Doors open, food, drinks & networking * 5:30 PM — From Zero to AI Agent: Building with Microsoft Foundry Agent Service (Engin Diri) * 5:55 PM — OpenClaw Bots Done Right: No Security Nightmares Included (Dor Serero) * 6:20 PM — Networking, food & drinks * 7:30 PM — See you at the next one! **Where:** Microsoft Reactor Tel Aviv Menakhem Begin Rd 144, Level 50 Tel Aviv-Yafo After the official wrap-up, we'll continue any interesting discussions at a nearby bar for those who want to keep the conversation going. Spots are limited, so grab yours early. See you there!

Join us in the search for the true, the good and the beautiful. We will be reading and discussing a fascinating philosophical text in English. Welcome anyone interested in understanding life more deeply, regardless of age or prior knowledge. The love of wisdom is enough. Please join our WhatsApp group: https://chat.whatsapp.com/CDjIJ8i1LZsJ2a7WJXFxhG?mode=wwt Sapere Aude! (Kant's Motto: Dare to Think!)

Join us in the search for the true, the good and the beautiful. Each meet is in one of two formats: a shared reading and open discussion of philosophical texts, or a continuing series of lectures based on the reading of a fascinating book of philosophy. Both formats are in Hebrew, with some reading of English texts, assisted whenever needed. We meet weekly Friday on 80 Rokach Boulevard, Tel Aviv, at the gardens of the Council for a Beautiful Israel. Welcome anyone interested in understanding life more deeply, regardless of age or prior knowledge. The love of wisdom is enough. Please join our WhatsApp group: https://chat.whatsapp.com/JeAa2uRNTlF0rdrVTLzUC0?mode=wwt Note: there's always enough sitting room, but some of it is on the grass or a mat on the floor. If you want to guarantee yourself a chair, please bring one with you. Sapere Aude! (Kant's Motto: Dare to Think!)

**TAMI Sonic (Music Night)** Join our bi-weekly informal meetups devoted to playing and experimenting with sound. ========== TAMI wiki: [https://telavivmakers.org](https://telavivmakers.org) TAMI main Telegram channel: [https://t.me/+0t5M0-jK9iIwZmM8](https://t.me/+0t5M0-jK9iIwZmM8)

מתי מריאנסקי, אומן ויזם בתחום הבינה המלאכותית, מייסד קהילת “עליית המכונות”, ידבר על החיים לצד הבינה. נגלה איך טכנולוגיה משנה את כל מה שחשבנו על עבודה ויצירה, נחשוף את שלושת המגמות המפתיעות שמניעות את השינוי ונלמד איך להגיע מוכנים לעולם החדש שמעבר לפינה. למבוגרים (15+). **שימו לב:** לא מספיק להרשם במיטאפ יש להרשם גם בקישור הבא , שם תמצאו גם פרטים נוספים https://link.makelab.org.il/Living-with-ai

קורס ארדואינו, ESP ורובוטיקה חכמה; מחברים רעיונות לעולם ה- IoT. קורס מעשי בן 10 מפגשים שבו רעיונות הופכים למערכות חכמות שפועלות בעולם האמיתי. נלמד לעבוד עם חשמל ואלקטרוניקה, נרכוש יסודות ב- C++, נשלב סנסורים, חיישנים (אור, חום, קול, מגע, מרחק) ונפעיל רכיבים כמו מנועים, רמקולים ולדים, עד לבניית רובוט מתנייע ונשלט. נחבר חומרה לאינטרנט באמצעות ESP32, לשליטה ובקרה מרחוק בזמן אמת ואפילו נלמד לשלב בינה מלאכותית לתוך הפרויקטים שלנו!. למבוגרים ונוער (16+). עלות: ₪2900 הנחה לתושבי יהוד שימו לב: לא מספיק להרשם במיטאפ יש להרשם גם בקישור הבא https://www.makelab.org.il/registration/arduino-course

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

Dear Illinois Prairie PUG members, Our next meetup will take place in a **new location**. Please read **the whole announcement** carefully to note all the changes. Our new meeting place is **Chicago Innovations at 1 W. Monroe**. *Talk Title*: pg_lake: Unifying transactional and analytical data with Postgres *Speaker*: Elizabeth Christensen, Snowflake *Talk Description* The data world used to be defined by “transactional" (OLTP) and “analytical” (OLAP) workloads, but we’ve asked ourselves, “Why not both?” A new series of extensions called pg_lake has just been released to connect Postgres to object storage and open table formats - like csv, Parquet, and Iceberg. pg_lake bridges the two worlds of transactional and analytical data for a vendor neutral, open source, unified data stack. This talk will explore the pg_lake extension, including how to build it, and demos of using it with modern data workloads in object storage like Amazon S3. We’ll create simple data pipelines with no ETL and high performance analytics. pg_lake is more than just an extension. It is the foundation to a fully unified data path with 100% open source tools backed by PostgreSQL, DuckDB, Iceberg, and Polaris. *Agenda* 5:20 - doors open 5:30 - pizza arrives 6:00 - 6:10 - Hettie D. Opening remarks 6:10- 6:20 - Hettie D. Data warehouse history overview 6:20 - 6:50 Elizabeth C. pg_lake: Unifying transactional and analytical data with Postgres 6:50 - 7:00 Q&A 7:00 - 7:50 - Open discussion and networking 7:50 - 8:00 - Cleanup time and closing *Notes about our new venue*. I am delighted to have an independent venue for the first time since I am hosting the meetups. I hope that this will be our permanent home. And as you all know, with more freedom comes more responsibilities. You will notice the change in the RSVP form. We are thankful to our hosts and promise to be responsible. We comply with the [PostgreSQL Code of Conduct](https://www.postgresql.org/about/policies/coc/). We do not want to waste food, so please indicate your dietary preferences. We will not close the RSVP in the morning of the meetup, but please do your best to RSVP in advance so that we can order the appropriate amount of food and drinks. Also, all meetups will be hybrid - please don't forget to indicate whether you are attending in-person or virtually. Thank you, and I look forward to seeing you all at our new location! Hettie Dombrovskaya Illinois Prarier PUG Organizer

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant. *** Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'! Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life. Mission: grow, support, and provide community for atheists in Central Ohio. Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision. Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge. Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant. Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'! Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life. Mission: grow, support, and provide community for atheists in Central Ohio. Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision. Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge. Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ). This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/