PostgreSQL

Come along to Pohoda’s stall to help run, set up and clean up for the flash market! Pohoda supports quality of life for mental disabilities in adults, including health and social services. The flash market is an activity that contributes to their fundraising and sells products that were made by their community. If you have any questions, contact Julia +420 737 890 656

**Talk 1 – ArgoTs: TypeScript-Powered GitOps with ArgoCD** By: Jiří Soukal - Senior Cloud Engineer, from PriceFX Kubernetes is the de facto standard for cloud-native infrastructure, but managing it often means drowning in YAML. Tools like Kustomize, Helm, and ArgoCD overlays ease the pain, yet feel like patchwork rather than a fix. TypeScript-native solutions such as Pulumi or Terraform exist, but they rely on external state to diff and apply changes—adding complexity for GitOps teams. This talk introduces a new approach: using TypeScript as the source of truth for Kubernetes infrastructure without external state. By extending ArgoCD to understand TypeScript, we can dynamically generate all resources, from workloads to ArgoCD Applications and even cloud provider resources via ConfigConnector or Crossplane. **Talk 2 –** **Securing AI Deployments: From Prompts to AIBOM** By: Marek Sottl, CEO of Hackihub Are you interested in the security of AI application deployments? This packed session will focus on protecting language models and the obstacles that can arise during their deployment from a security perspective. We will explore deployment strategies in AWS and Azure environments, input validation using NLP, prompt tracing, and above all, we will emphasize the importance of AIBOM and MLBOM. **Talk 3 - GitOps, IaTS, OpenRouter and OpenClaw come to a bar** By Martin Pohl GitOps, IaTS, OpenRouter and OpenClaw come to a bar. The bartender says, “Great… who actually has production access?” GitOps says, “Not me, I only sync what’s in git.” IaTS says, “I just generate the infrastructure.” OpenRouter says, “I only route the requests.” OpenClaw says, “Relax, I already decided for everyone.” The bartender slowly reaches for the incident button: “So… which one of you started the outage?” All four reply: “According to the logs, it was a collaborative effort.” Today’s infrastructure tooling is incredibly powerful platforms like ArgoCD, TypeScript-based GitOps, and modern cloud-native stacks allow us to build and manage systems with unprecedented flexibility. But at the same time, we are introducing entirely new layers of complexity and attack surface. This talk explores the intersection of GitOps, TypeScript-driven infrastructure, and emerging AI tooling such as OpenRouter and autonomous agent-style setups like OpenClaw. As infrastructure evolves from static, declarative definitions into dynamic, runtime-generated systems, we are no longer just managing code we are operating systems that can interpret inputs, generate logic, and in some cases act autonomously. With this shift comes a new set of security challenges: prompt injection, tool misuse, model supply chain risks, and limited observability into AI-driven decision-making. The session connects these emerging risks with concepts like AIBOM and modern AI deployment security practices. Ultimately, this talk asks a critical question: are we building the future of platform engineering or creating systems we no longer fully control? **More about Talk 1:** Combining GitOps with the expressiveness of TypeScript creates infrastructure that is both declarative and dynamic, reducing toil while enabling richer abstractions, safer collaboration, and more maintainable platform engineering practices across the CNCF ekosystem. Benefits to the ecosystem \- Clarity & Maintainability: Reduces YAML complexity and templating hacks by introducing a strongly typed\, programmatic way to define infrastructure\. \- GitOps Alignment: Preserves ArgoCD’s declarative\, state\-free model while unlocking the flexibility of TypeScript\. \- Scalability: Makes it easier to manage multi\-cluster and multi\-environment setups with reusable\, composable infrastructure definitions\. \- Innovation in Platform Engineering: Demonstrates how the Kubernetes ecosystem can evolve beyond YAML\-first thinking\, inspiring new tools and workflows that balance developer experience with operational reliability\. \- Community Value: Provides a concrete path for teams frustrated with YAML sprawl to adopt a more maintainable\, type\-safe\, and future\-proof approach—without abandoning the CNCF ecosystem’s GitOps best practices\.

Free Event/Vstup Zdarma Pro češtinu, podívejte se níže EN Hello, people of Prague!! We bring you a forum to trade your language skills and learn something more. If not interested in language, you could have a general conversation. The goal is to create a chill environment for social networking with a focus on learning the language of your choice. So grab some beverages at the bar/cafe and get on with it every Thursday. **NEW** Venue: Tequila Tales Bar **NEW** Location: Ujezd 409/19, 11800 Malá Strana Timing: 1900-2200 (Every Thursday) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- CZ Ahoj Pražáci!! Přinášíme vám fórum, kde můžete vyměnit své jazykové znalosti a dozvědět se něco víc. Cílem je vytvořit pohodové prostředí pro sociální sítě se zaměřením na výuku jazyka dle vašeho výběru. Takže si vezměte nějaké nápoje v baru/kavárně a pusťte se do toho každý čtvrtek. **NOVE** Místo: Tequila Tales Bar, Ujezd 409/19, 11800 Malá Strana Čas: 1900-2200 (každý čtvrtek)

## **What IdeaVerse is about** **We meet usually once a month to discuss some of the current challenges as well and perhaps come up with new ideas on how to overcome them. For those who came regularly, this next meetup would be slightly different. We will do a workshop on solving real world problems.** The problem we will attempt to solve is the dissolution of communities and spaces where people connect in person, and with it, our increased isolation and loneliness. There are many reasons why this is happening: \- replacement of religion with science as a beacon of meaning\, which seems to be much less great at inspiring connection; \- economic forces boosting our ego\, and make it easier to pay for random strangers for help then making lasting connections with people\. \- political polarization \- \(anti\)social media \(as I call it\) and now AI offering simulations of relationships\. \- climate change increasing our distrust in a better future and the importance of investing in life and people\. \- closing down of third spaces like churches\, malls and retail stores \(due to online shopping\)\, youth centers and increase in remote work\. These are all causes we'll explore, together with examples of how other people expressed they feel about this issue from research, reasons why this issue exists as well as examples of small victories against this tide. We'll work in small groups putting all this knowledge together with out imagination and attempt to find local solutions to similar problems here in Prague. This is is more than a discussion. It's an exploration of our ability to work together to effect change in ourselves and in our social circles. **Some suggested reading/watching:** 1. "Contrary to the perception that isolation and loneliness primarily affect older people in high-income countries, they impact the health and well-being of all age groups across the world. One in four older people experience social isolation and the rates are broadly similar in all regions. Among adolescents, between 5­­–15% experience loneliness, according to research findings." (3 minute read - [WHO launches commission to foster social connection](https://www.who.int/news/item/15-11-2023-who-launches-commission-to-foster-social-connection)) 2. "Many popular sitcoms center around what's known as a third place-- for example, Central Park in Friends or the Bull and Finch Pub from Cheers. Like the theme song goes, it's somewhere where everybody knows your name, where you can socialize in a place other than your home or work and build some community. But with the whole world accessible on your smartphone, it's kind of hard to resist the call of the couch. And it's hurting us more than we think." (10 minute Podcast [Third places’ may be the answer to America’s loneliness epidemic](https://www.mprnews.org/episode/2024/05/23/third-places-may-be-the-answer-to-americas-loneliness-epidemic)) 3. “These verdicts mark an unsurprising breaking point. Negative sentiment toward social media has been building for years, and now it’s finally boiled over,” said Mike Proulx, a director at Forrester, a market research company. (4 minute read - [How the landmark verdict against Meta and YouTube could hit their businesses](https://www.aol.com/finance/landmark-verdict-against-meta-youtube-100000070.html)) **The meeting is free to attend, but please buy a drink or two at our patron's place, to make them happy.**

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **This is a curated, small-group meetup make new friends in Prague.** Each meetup brings together 4–6 like-minded people for casual conversations over dinner. We use the Groupvibe platform to organize and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com](https://groupvibe.com) Once you register, and **buy a ticket or become a Groupvibe member**, we’ll share the exact location and match you with your group. **Why this works:** \* Smaller groups make real conversations easier \* Matching helps avoid awkward dynamics **Note:** RSVPs here on Meetup don’t reflect total attendance. Many attendees register directly via our website. This meetup is organized by **Groupvibe**, a small team passionate about helping people form meaningful friendships offline.

Come and join us for a fun, friendly, but competitive game of 7-a-side. All abilities welcome. Artificial, outdoor pitch all year round, whatever the weather. The game starts at 19:30, please be ready to play by then. This football training event is organized by **Taverners FC z.s.** (IČO 23530791). By taking part in this event, each participant confirms that they are responsible for their own health and physical condition. Participation is voluntary and at the participant’s own risk. Taverners FC is not responsible for any injuries, health problems, loss, or damage that may occur during or as a result of participation in the event. Each participant confirms that they are fit to participate. IMPORTANT! A place is ONLY guaranteed for those who are on the list for the event. If you are on the waiting list, please wait patiently until you are on the actual list. Even if you see free spots on the list, but you are still on the waiting list, a place is NOT guaranteed. Also, we do last-minute subs in the Facebook group every Thursday afternoon: https://www.facebook.com/groups/tavernersprague The game costs 60 crowns. Ways to pay: 1\. With cash\. Ideally\, with exact change\, or no more than a 200 crown note\. 2\. On Revolut \- @simonalperovich / QR code at the game\. Late cancellation after 14:00 on the day of the event costs 60 crowns.

Weekly Czech Conversation Meetup 📅 Every Thursday \| 🕢 19:30–21:30 📍 Tequila Tales, Újezd 409/19, Praha 1 Are you an expat in Prague learning Czech at A1 or A2 level? Ready to stop just studying and start speaking? Join our Weekly Czech Conversation Meetup – a focused, interactive session designed to help you speak more confidently in Czech through fun, practical, peer-based learning. 🎯 What to expect: Structured, casual Czech-speaking sessions Fun language games, real-life scenarios, group challenges Peer-to-peer learning (no teachers – just motivated learners!) No grammar overload – just speaking and using what you know 🧠 Who is this for? A1 and A2 level learners (not for absolute beginners) Expats in Prague who want to practice Czech in a supportive space People who are ready to actively participate – speaking is a must! 📝 Important: Preparation is required. Each week, you’ll get a short prompt or task in advance. Everyone must come ready to engage. 💬 Why join? Build real-life speaking skills Break the fear of using Czech Meet other motivated learners Get out of your Duolingo comfort zone! 🌍 This is a focused Czech-only session, happening from 19:30 to 21:30, as part of the larger Uninstall Duolingo Language Exchange night every Thursday.

On Saturday - the spring food collection drive will be running across the whole Czech Republic! We will be collecting, sorting and packaging donated foods with the food bank for a couple hours. **Please confirm if you are interested, the details of exactly what time and where will be confirmed once we have numbers.** *If you would like to sing up independently, here is the link - be aware they may struggle with English speakers in some area. https://www.sbirkapotravin.cz/chci-byt-dobrovolnik* The Food Bank runs collection days periodically to promote the mission of non-profit organisations supporting abandoned seniors, single mothers, families in crisis, the homeless and those suffering from mental or physical disabilities. For more information, here is their website [http://www.potravinovebanky.cz/](http://www.potravinovebanky.cz/) If you have any questions, contact Julia +420 737 890 656

Filozofování o životě a o všem ostatním pro všechny, bez vstupného a bez přihlášky: Co si přejete, s čím si lámete hlavu, co Vás nenechá spát, o čem dumáte, o čem sníte, co Vám vrtá hlavou, čeho se bojíte, na co vzpomínáte, o čem přemýšlíte? Nenechte tyto věci jen pro sebe, zkuste rozhovor s jinými lidmi. U nás nejde jen o to, si popovídat, o to taky, ale to máte i jinde. U našeho stolu se pokusíme, spolu *filozofovat*. Nejdříve se dohodneme, jaké téma budeme diskutovat, a pak se do toho pustíme, budeme přemýšlet, rozmýšlet, promýšlet a zamýšlet se, až se nám z toho bude točit hlava, přitom nám budou podporou filozofové všech věků, abychom jí neztratili, tu hlavu. Ani byste nevěřili, jak filozofie může být osvěžující…

Are you interested in a lot of things but just a little at a time? Then come to the 5 Minute University! Each talk lasts only 5 minutes followed by 1-2 questions and you'll have the chance to talk to the speakers and other listeners before and after the event - it's a great place to make some friends and find good conversation! Here's the current line up: 1.Jamin Tuma - "What happens if you ask yourself 500 pages worth of questions?" 2.Martin Popop - "How to Drink Without Getting a Hangover" 3.Steven Rasovsky - "The Power of Breath" 4.JT Ostdeik - "What is Philosophy?" 5.Tom Thumb - "The Art of Storytelling" 6.Mauro Pellegrini - Everything I know about the contemporary art scene in Prague 8.Maria - It takes two to tango 9.Trang - Why are there so many potraviny in Prague? 10.Vita - TBD 11.Bara - TBD This event is solo-friendly, there will be plenty of things to talk about. So join alone or bring a friend, everyone is welcome. It's a free event and so be sure to support our hosts, Dorado Coffee, by buying drinks.

Hi All, Come and join us for social running and a coffee! We meet at the main gate of Vystaviste - tram stop Vystaviste Holesovice. We will run in Stromovka. Usually we run around 50mins and it is up to everyone how many kilometres. We welcome all levels of runner. We can all run together or, if there is more of us, we can split into groups and at the end of the run we all meet close to the starting point to go for a coffee to a nice local coffee place (where they also sell cakes and great chocolate). If the weather is great, we can also just sit in one of the outside coffee placces in Stromovka and enjoy the sun. This is where we meet: http://photos2.meetupstatic.com/photos/event/7/7/3/1/600_447930513.jpeg

This group is for anyone who writes - for any reason. Have a thesis or article you need to write? Trying to finish a novel or an academic paper? This group is for you. We are currently meeting in-person at Locus Workspace. If you have any questions, contact Sonya Lano here or on Facebook or Messenger (https://www.facebook.com/sonya.lano). We start at 9:00, introduce ourselves, and share a few words about what we're working on and what we hope to accomplish during the session. At the end of the session, you can give us a brief recap of how it went. We'll break at noon. The afternoon session starts at 2:00 pm. You're welcome to join both sessions or just one. Please come as close to 9:00 as you can if you come for the morning session. If you come to the afternoon session, we are usually back by about a quarter to 2:00.

Hola tod@s! Tenemos otra reunion este viernes en Pivni Bar Blanička! Sois muy bienvenidos!

It's easy to get the idea that philosophy is largely an abstract and conceptual endeavor–studying theories that try to explain the universe, morality, or language, and then arguing until we either prove those we disagree with wrong or at least reach a smug sense of clarity. But is that all that philosophy has to offer? Back by popular demand, this month we'll be diving deeper into the reflections of **Pierre Hadot** by beginning his essay **Spiritual Exercises**. In this essay, Hadot argues that **ancient philosophers didn't just theorize about what a good life might be, but practiced it through disciplines of attention, meditation, and self-examination aimed at transforming how one sees and lives in the world**. The essay invites us to ask **whether philosophy might still serve that purpose today**. Hadot specialized in **ancient Greek and Roman philosophy--especially Stoicism, Neoplatonism, and early Christian thought**–as was known for his scholarship on **Marcus Aurelius, Plotinus, and ancient spiritual exercises**. His work has influenced many contemporary philosophers, classicists, and the modern revival of philosophy as a lived practice. As noted in the title, this will be the first of two sessions. We're splitting the text into two parts in order to give everyone a chance to fit the text into their busy lives, as well as to give us space to move more slowly through the text together. \*\*\* Below is a PDF copy of Hadot's book Philosophy as a Way of Life. This session will cover up to p.93 (ending at 3. Learning to Die). If you have trouble accessing it, send the host a message–extra copies are available. Link: [https://ia800203.us.archive.org/7/items/PierreHadotArnoldDavidsonPhilosophyAsAWayOfLifeSpiritualExercisesFromSocratesToFoucault1995/Pierre%20Hadot%2C%20Arnold%20Davidson%20Philosophy%20as%20a%20Way%20of%20Life%20Spiritual%20Exercises%20from%20Socrates%20to%20Foucault%20%201995.pdf](https://ia800203.us.archive.org/7/items/PierreHadotArnoldDavidsonPhilosophyAsAWayOfLifeSpiritualExercisesFromSocratesToFoucault1995/Pierre%20Hadot%2C%20Arnold%20Davidson%20Philosophy%20as%20a%20Way%20of%20Life%20Spiritual%20Exercises%20from%20Socrates%20to%20Foucault%20%201995.pdf) \*\*\* We’ll have tea and light snacks, but please feel free to bring any drink or snack you’d like to share! This event will be hosted in an apartment with a well-trained dog who will be happy to meet you. If anyone has concerns about dogs, let me know so I can be mindful about keeping her from bothering you. The buzzer is Everett and Mainous—we’re on the 5th floor, apartment 16. Meeting structure: We will start with a brief summary of the key ideas Hadot presents then move to open discussion. Please read the text in advance, make highlights, and note any thoughts or questions you find interesting and compelling.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

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

**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.

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

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.

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.