White Hat Hacking

Come to check out our hackerspace, talk to people and learn some new things, maybe use the tools for a short while, or just sit down with a laptop and do some work in a quiet place. Also a good time to sign up for a membership! We will have tea and coffee, likely also cookies. Come whenever from 19:00 till 22:00 - we might even be open until 24:00! If there's a problem (i.e. doors not open), call 28701072.

We are the Baltic Blockchain association (non-profit) based and registered in Vilnius and organizing Blockchain and AI tech events around the Baltics. Our goal is to Educate those who have questions on the new technology, find students who want to participate on our public research projects and those who believe they need to brush-up their knowledge on DTL, TradFinance, RWA or NeoFinance and regulation like MIDIF II, AML, Travel Rule or MiCA. We have limit please register here: \[https://luma\.com/cdf3ifsn\]\(Luma Trades Crypto Drinks\) \*Please note\* we do not give financial advice, we provide you publicly accessible information published by the EU.

Cracked engineers gather to share their workflows on agentic engineering. ​We will talk and share how to orchestrate the minions in parallel, what tools we use, subagents, skills, MCPs. ​ Add great coffee to the mix and we're set. ​ Starter led by Emīls Pļavenieks Apply here https://luma.com/e0pc0wzh

A small and exclusive group of friends running 5 km every Sunday at 10 am. Bring yourself, your running shoes and maybe a friend. We start in the center, medium pace run, then end up at a coffee shop. => Once you go on the waiting list, the moderator will approve/reject Instagram => https://www.instagram.com/rigasundayruns Whatsapp=> [https://chat.whatsapp.com/CF24r42CTn3GKtsNjdpEjG?mode=gi_t](https://chat.whatsapp.com/CF24r42CTn3GKtsNjdpEjG?mode=gi_t)

**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We like to be comfortable when we run and finish with coffee and conversations. Choose your pace or follow a pacer—pets, friends, family, are welcome. 🗓️ Launched in San Francisco, July 16, 2022 🌍 Now in 35+ cities 📅 Running + Networking events + Community **Join the community** http://foundersrc.com/chats **Stay updated**: Instagram http://instagram.com/foundersrc/ Podcast http://podcast.foundersrc.com/ LinkedIn http://linkedin.com/company/foundersrc/ Strava http://strava.com/clubs/foundersRC Website http://foundersrc.com/

Come and meet people in Riga! Always on the **first Friday of every month**, so it’s easy to remember. A friendly, informal evening where locals, expats, students, and newcomers meet, mingle, and wind down in good company. * **When:** First Friday of each month, this time Good Friday, i.e. April 3, 2026, at 7pm * **Ending:** while the duration is announced to be 2 hours, the party usually lasts longer * **Where:** The Snuggest, Zirgu iela 3 * Prices: the event itself is free of charge, but please get a drink or a meal at the bar. Age limit: 18 and older. Photos of participants might be taken at the event and posted publicly to social media, including but not limited to [meetup.com.](http://meetup.com.) By joining the event, you accept this condition. Please join the event here (the website is free for regular users) or contact us if you have any questions. Event communication will take place within [meetup.com.](http://meetup.com.) Please check for posts and messages regularly. Hope to see you soon.

A weekly meetup for language lovers! Come practice new languages, meet great people, and enjoy a drink — whether it’s beer, tea, or coffee. Everyone’s welcome! 🤗 Main event platform is Facebook https://tinyurl.com/yc4afzwf (so more people coming!) Address - Aldaru Street 9, FOB Bar

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

Do you feel introverted when you are in a group setting? Are you shy? Do other people have more fun than you do? There are simple life hacks you can use to improve your connection to others and improve your social life. Talking is one thing. Truly connecting is altogether another. It's the whole experience of connecting with people and forming relationships. It includes the joy, understanding, and love formed among people. * In our meetings, you will learn: * A simple life hack to increase your liking and tolerance of other people, or even of yourself! * How to become more interested and enjoy conversations with people. * How to be comfortable in social settings. * How to be yourself * How to become more extroverted and, * How to make connections with people. Feeling lonely, isolated, or bored? This local meeting is exactly what you need! Come join us! Be sure to click on the red "Attend" button below to come to the local event. We look forward to seeing you there. This group is created by the Dianetics and Scientology life improvement center.

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

We'll meet at The Capital One Café, 167 Easton Town Center, Space A-103. This is in the main mall where the Microsoft store used to be, on your left if you're standing at the bottom of the AMC Theater escalator. Join us on Saturday for an hour of uninterrupted wordmaking! • What we'll do Join us for an hour of writing! We’ve discovered that it’s strikingly helpful to write with other writers. See if it’s true for you at 10AM on Saturday mornings. Be it a book, blog, script, essay, dissertation, resume, melody, poem or just plain work stuff, you are invited to write it with us. No one will see what you've written or give you unsolicited advice. Instead of just thinking about writing, come and get some real writing done. SCHEDULE: 10:00 - SESSION 1: quick intros. 10:10 - timer starts: write for 1 hour. 11:10 - chat / take off / keep writing. OPTIONAL SOCIALIZING happens at 11A-11:30ish. Writing is very solitary. Connecting (and sometimes even commiserating) with other writers is a cool thing. BEING LATE IS OKAY: just show up and get settled, then check-in with me after the session. (I’ll be the person with the Shut Up & Write! sign.) If you were on time, please be willing to make room for the friendly latecomer. Happy writing and I look forward to seeing you! • What to bring Whatever you need to be able to write! Bring earbuds/earplugs if you want to block noise or the occasional conversation by other patrons. Electrical outlets are limited, so charge your devices before whenever possible. See you at The Café on Saturday!

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

Greetings writers! Come down and join your fellow wordsmiths for one hour of uninterrupted writing time in the upper level of the Market District Supermarket in Upper Arlington. The main entrance of the shopping center opens onto stairs/elevator leading up to the 2nd floor cafe section where we will have a table displaying a sign with the Shut Up & Write logo. Writing is largely a solitary craft. Practicing with others in a community setting may be the thing you need to fire your own routine. We’ll meet on Wednesday evenings, starting the clock at 6:30, following a brief period of introductions. This is solid writing time and all inclusive. Any project is acceptable, be it fiction, non -fiction, work or homework assignment. All is welcome and will remain private to you. The market boasts a Starbucks, a full service bar and various affordable food options. Parking is plentiful, free Wifi is provided as well as outlets for charging your devices, though they are somewhat limited, so plan accordingly. Show up as early as you like, or stay late. This group tends to socialize some, both before and after the alloted time, but this is not mandatory to you. Feel free to come and go as you please and late arrivals are welcome. The cafe may be noisy on occasion so headphones/ earbuds are reccommended as you see fit. Please try to RSVP if possible so that we may grab enough seats for all—the venue can be busy at times. Feel free to message me privately wth any questions and/ or concerns you may have. Happy writing!

**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: Type Annotations with John Cassidy 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