Entrepreneur Networking

**Hack The Box meetup: "Not The Hidden Skillz" - 0x04** This time - live, at CONFidence 2026! After three successful online editions, we're taking **Not The Hidden Skillz** to the next level. Event **0x04** will take place as part of **[CONFidence](https://confidence-conference.org/)** \- one of the most recognized cybersecurity conferences in Poland\. The Meetup listing exists so there's a trace of it and you can save the date\, but the real action happens on\-site\. What's in store? * **Live talks & conversations** \- open discussions with HTB players and security practitioners\, face to face * **Live hacking sessions** \- we play machines and challenges together\, in real time\, side by side * **Community first** \- same spirit as always: 100% hands\-on\, 0% slides **Can't make it to CONFidence in person?** No worries - we've got you covered. A dedicated channel on the **NTHW Discord** will be active during the event, where you'll be able to: * Access **dedicated labs** prepared for the occasion * Follow along and **join the discussion** remotely * Stay connected with the community in real time 👉 Join the NTHW Discord now so you don't miss a thing: [discord.gg/fjwzWFWuzg](https://discord.gg/fjwzWFWuzg) Whether you're at CONFidence or joining from home - there's a spot for you

**Hack The Box meetup: "Not The Hidden Skillz" - 0x04** This time - live, at CONFidence 2026! After three successful online editions, we're taking **Not The Hidden Skillz** to the next level. Event **0x04** will take place as part of **[CONFidence](https://confidence-conference.org/)** \- one of the most recognized cybersecurity conferences in Poland\. The Meetup listing exists so there's a trace of it and you can save the date\, but the real action happens on\-site\. What's in store? * **Live talks & conversations** \- open discussions with HTB players and security practitioners\, face to face * **Live hacking sessions** \- we play machines and challenges together\, in real time\, side by side * **Community first** \- same spirit as always: 100% hands\-on\, 0% slides **Can't make it to CONFidence in person?** No worries - we've got you covered. A dedicated channel on the **NTHW Discord** will be active during the event, where you'll be able to: * Access **dedicated labs** prepared for the occasion * Follow along and **join the discussion** remotely * Stay connected with the community in real time 👉 Join the NTHW Discord now so you don't miss a thing: [discord.gg/fjwzWFWuzg](https://discord.gg/fjwzWFWuzg) Whether you're at CONFidence or joining from home - there's a spot for you

Combinatorial optimization problems arise across logistics, scheduling, and engineering, and C++ remains a language of choice when performance matters. This lecture takes a practical look at solving such problems in C++, using the Electric Vehicle Routing Problem as a running example. We begin with an exact solver, formulating the problem as a mixed-integer program and trying to solve it through GLPK's C API directly from C++. Exact methods, however, quickly hit their limits on real-world instances. The second half of the talk turns to metaheuristics: how they are designed, why C++ is particularly well suited for implementing them, and what design choices matter most in practice. We'll walk through a concrete implementation, touching on data structures for fast neighborhood evaluation, generic algorithm design with templates, and the performance considerations that separate a prototype from a production-ready solver. The goal is not to advocate for one approach over another, but to show how C++ supports the full spectrum of optimization techniques. # About Speaker Luka Matijević is a researcher at the Mathematical Institute of the Serbian Academy of Sciences and Arts, whose work bridges academic research and freelance engineering. He's drawn to identifying the right algorithm for a given problem — and to the kind of careful optimization captured by one of his favourite Futurama lines: *"When you do things right, people won't be sure you've done anything at all."* ## 📅 Event Details | | | | --- | --- | | 👤 **Speaker** | **[Luka Matijević](https://www.linkedin.com/in/luka-matijevic/)** | | 🕕 **Date & Time** | **27th of May (Wednesday), 6 pm** | | 📍 **Location** | **Beograđanka, Vidikovac, 22nd floor** | | 🏢 **Address** | **Masarikova 5** | | 💻 **Online** | **[C++ Serbia YouTube](https://www.youtube.com/@cppserbia)** | See you!

## Learn Go and NixOS deployments with large language models Hello, 世界! When used sensibly, language models can be tutors, too. For meetup #60 on Tuesday [May 26, 2026 19:00 CET](https://www.meetup.com/leipzig-golang/events/312537727) we are really happy to have [Maxime](https://www.linkedin.com/in/plumps/) dive into Nix/NixOS with the help of language models. Nix is a functional package manager and its immutable traits enable robust, reproducable deployments of Go (and other) projects. The high level goals of Nix/NixOS are similar to other immutable Linux distributions, like [Silverblue](https://fedoraproject.org/silverblue/) or [Bazzite](https://bazzite.gg/). Becoming familiar with the Nix configuration language can be a challenge, but one that a well instructed tutor may help with. > Artificial intelligence techniques are increasingly used in education to enable personalized learning and intelligent tutoring [LLM Agents for Education: Advances and Applications](https://aclanthology.org/anthology-files/anthology-files/pdf/findings/2025.findings-emnlp.743.pdf) (11/2025) Why reproducible and immutable deployments play a role? [Justin Garrison](https://justingarrison.com/blog/state-of-immutable-linux/) says: > It’s 2026, if you’re not using something immutable (or at least reproducable) you’re doing more maintenance work than you should. [blog post recapping talk from [Southern California Linux Expo 23x](https://www.socallinuxexpo.org/scale/23x)], 03/2026, PASADENA, CA ### Schedule * 18:45 Doors open * 19:00 Welcome * 19:10 Dive into Nix/NixOS with LLMs * 19:50 Open discussion We’ll meet: * in person at [Basislager Leipzig](https://basislager.co), at [Peterssteinweg 14, 04107 Leipzig](https://maps.app.goo.gl/1fMkeDSPZ7Aauszh8) ([OSM](https://www.openstreetmap.org/node/3504864558)) * and online via [Google Meet](https://meet.google.com/poy-koue-spc) Join us to discuss robust Go deployments, language models as learning tools and more!

Tatry IT Ťa pozýva na pravidelné stretnutie o aktuálnych a zaujímavých (nie len) digitálnych a IT témach. Eventy organizujeme v spolupráci s [Coworking Poprad](https://coworkingpoprad.sk). Príď na meetup Tatry IT Community na tému: Priamy let na produkciu: AI-first vývoj v Kiwi.com. Platformu Kiwi.com netreba špeciálne predstavovať. Menej sa však hovorí o tom, ako Kiwi.com funguje vo vnútri. Na meetupe budeme hovoriť o tom, ako v Kiwi.com beží (lieta) AI-first vývoj. **Speaker: Michal Cyprian** Zaregistruj sa [tu](https://docs.google.com/forms/d/e/1FAIpQLSc6wDQ2F7Z_avxdFvhSzJddNjr2i4h231A_q0TDzIFhqRyzVw/viewform). Slido: #tatryit **PROGRAM:** 18:00 Privítanie 18:10 Priamy let na produkciu: AI-first vývoj v Kiwi.com 19:00 Q&A a Networking Event budeme [streamovať](https://youtube.com/live/ltR3RmE2uT0?feature=share) a môžete si ho pozrieť aj neskôr na YouTube kanáli Tatry IT community (https://youtube.com/live/ltR3RmE2uT0). Zaujíma Ťa niečo konkrétne, alebo máš zaujímavú tému? Napíš nám (community@tatryit.sk). Tatry IT Team

Get ready to connect, collaborate, and grow your community at the ***Smashing Your Sales Goals (SYSG) Spring Meet-N-Greet!*** *Smash Nation*— a vibrant and welcoming community for creative consultants, social innovators, professional service providers, entrepreneur support professionals, and the small business ecosystem builders —invites you to join in welcoming the Spring 2026 Cohort of dedicated business owners ready to take their venture to the next level. Join ***SYSG*** cohort members, trainers, sponsors, and partners for an engaging and interactive networking experience. This isn't just another meet-and-greet; it's a dynamic opportunity to gather, strengthen relationships, and actively brainstorm business development opportunities in a relaxed and supportive environment. Come ready to: * ***Connect*** with key players and potential collaborators in the small business community. * ***Share*** your successes, challenges, and insights with peers. * ***Brainstorm*** innovative strategies for sales and business growth. * ***Discover*** new partnerships and future partners. Let's amplify our collective impact and smash those sales goals together! **Who Should Attend:** Spring, Summer, and Fall 2025 Cohort Members, Spring 2026 Cohort members, Trainers, Facilitators, Program Sponsors, Future Sponsors, Velocity Applicants, and Program Partners. **When**: Tuesday, May 26, 2926 **Where**: Warner Wood Park and Pavilion [4747 Central College Road, Columbus, OH 43081](https://www.google.com/maps/place/Warner+Woods+Park+%26+Pavilion/@40.0999435,-82.8601323,839m/data=!3m1!1e3!4m6!3m5!1s0x88385f0025d4381b:0xc15eb51285691f4f!8m2!3d40.1002108!4d-82.8612015!16s%2Fg%2F11wb2pg50g?authuser=0&entry=ttu&g_ep=EgoyMDI0MTAwNS4yIKXMDSoASAFQAw%3D%3D) **Time**: 4pm-6pm [To Officially Register Go To --> https://api.leadconnectorhq.com/widget/form/W0CGLL8jvz4EkLNK5jav?notrack=true](https://api.leadconnectorhq.com/widget/form/W0CGLL8jvz4EkLNK5jav?notrack=true) Meet ***Smashing Your Sales Goals*** expert trainers, sales coaches, community supporters and partners. Learn more about upcoming SYSG events, trainings coaching opportunities to help take your business from surviving to thriving today! This event is FREE and OPEN to the PUBLIC!

[ECDI Pop-Up Market Official Registration Site --> https://www.eventbrite.com/e/ecdi-pop-up-market-tickets-1986071755083](https://www.eventbrite.com/e/ecdi-pop-up-market-tickets-1986071755083) Celebrate Small Business Month by shopping local for food, drinks, and handcrafted gifts! Join us for the ECDI Pop‑Up Market, a celebration of local entrepreneurs during Small Business Month. Explore delicious food and drinks, discover handcrafted goods, and shop unique items from small businesses in your community. Whether you’re looking to support local makers, discover new favorites, or pick up a thoughtful gift, this market has something for everyone. **What you’ll find at the market:** * Local food and beverage vendors * Handcrafted goods and unique gifts * A chance to meet and support small business owners in your community * An easy, fun way to discover new local favorites [SCORE Central Ohio](https://www.score.org/ "https://www.score.org/") will also be on site to talk about their small business mentorship program. **Market Vendors:** Baked Goods * Shante Makes Body Care * [Bellas Natural Beauty Products](https://www.facebook.com/Bellasnaturalbeautyprod/ "https://www.facebook.com/Bellasnaturalbeautyprod/") Clothing & Accessories * [The Krafted Kollection](https://www.thekraftedkollection.com/ "https://www.thekraftedkollection.com") * [Loayza Elegant Jewelry](https://www.loayzaelegantjewelry.com/ "https://www.loayzaelegantjewelry.com/") * [Swahili House 254](https://www.swahilihouse254.com/ "https://www.swahilihouse254.com") Food/Beverage * [Aqua Pure Central Ohio](https://aquapurecentralohio.com/ "https://aquapurecentralohio.com") * [Better Beverage](https://betterbevshop.com/ "https://betterbevshop.com") * [Cherays Banana Pudding](https://www.facebook.com/profile.php?id=61567527322952 "https://www.facebook.com/profile.php?id=61567527322952") * [Dr. May's Thai Kitchen](https://www.drmaysthaikitchen.com/menu "https://www.drmaysthaikitchen.com/menu") * [Kronchy LLC](https://www.kronchys.com/ "https://www.kronchys.com") * [Terra Mezcal Mexican Grill](https://terra%20mezcal%20mexican%20grill/ "https://Terra Mezcal Mexican Grill") Packaged Food * [Grow to Eat, Eat to Live](https://growtoeattolive.com/ "https://growtoeattolive.com/") * [Underworld Feast](https://underworldfeast.com/ "https://underworldfeast.com/")  Since 2004, ECDI has assisted Ohio’s entrepreneurs through their one-stop-shop business services model, suited to meet the needs of all entrepreneurs, regardless of what business stage they’re in. From providing capital to entrepreneurs looking to expand their businesses, to providing focused, business-specific educational opportunities to enhance entrepreneurial skill sets, ECDI works with their clients to meet their specific needs. Whether you merely have a business idea or are opening up your fifth location, we have helped more than 15,000 entrepreneurs to take advantage of the services we provide.

Monthly working lunch for Columbus business owners. One specific topic, one to three actions you can run this week. You can be the best at what you do and still be invisible. If local buyers cannot find you, the phone does not ring. Marketing Monday Lunch + Learn is a monthly working lunch for Columbus business owners focused on building relationships, local networking, and local marketing. Every kind of local business welcome. No pitch round, no pressure, no upsell. **This month** Most local businesses pick one or two places to be visible and call it good. The result is inconsistent calls and a feeling that marketing is not working. We will walk through the three places every local business needs to show up, plus the fourth place most owners ignore that quietly produces the warmest leads. **What to expect** Doors open at noon. Order lunch and drinks at the cafe counter or bring your own. You get real conversation with other local owners and a focused marketing lesson. You leave knowing people and with one to three actions to run that week. The room is reserved through 1:30 PM. **Who this is for** Any local business owner who wants clearer marketing direction and real local relationships. Service businesses, retail, home services, professional services, online owners building local presence, anyone serious about being part of the Columbus business community. **Not the right fit if** You are here to pitch the room or recruit for an MLM. **Details** * Second Monday of every month * 12:00 to 1:30 PM * Good Cafe Easton, 4400 Easton Commons, Ste 150, Columbus, OH 43219 * Order lunch and drinks at the counter when you arrive * Free to attend, RSVP required, space is limited **About the host** Rita Suzanne is a local marketing strategist and the founder of Local Marketing Method. She runs Visibility is Profitability, the membership where local business owners build the system that keeps their phone ringing. Learn more at learnlocalmarketing.com. Register here: [https://www.eventbrite.com/e/1989964540509?aff=oddtdtcreator](https://www.eventbrite.com/e/1989964540509?aff=oddtdtcreator)

**[Official registration site --> https://luma.com/du41v0tg](https://luma.com/du41v0tg)** **[You must register and will receive an approval/confirmation](https://luma.com/du41v0tg).** We’re taking HustleBus from Columbus to **Black Tech Week in Cincinnati** for a high-signal, founder-only experience focused on community, collaboration, and momentum. ​ **Why Black Tech Week?** ​Black Tech Week is one of the best rooms in Ohio to meet builders, operators, investors, and ecosystem leaders. Expect meaningful connections, great energy, and programming that spotlights founders and what’s being built. ​ What’s included (thank you to our sponsors Huntington Bank, Burton D Morgan Foundation, and Lightship Foundation) * ​Founder-only HustleBus transportation (free) * ​**Black Tech Week ticket comped** for HustleBus participants (must register with code) * And much more! There are limited seats on the Hustle Bus, so if this sounds like something you want to get in on, register today * Learn more and Register here --> [https://luma.com/du41v0tg](https://luma.com/du41v0tg)

Free monthly networking for Columbus business owners. Real conversations, real connections, no forced formats. Space is limited. RSVP now. Most owners leave networking events with a stack of business cards and no plan. The best leads quietly slip through the cracks. Networking Night is a monthly meetup for Columbus business owners who want to build real local relationships, not just trade contact info. Every kind of local business welcome. No pitch round, no pressure, no awkward speed-networking. **This month** We are focused on referral relationships. Walk in with a clear idea of who refers people like you. Walk out having met a few owners whose work fits next to yours. **What to expect** Doors open at 6 PM. You get real conversation with other local owners, time to actually connect, and a short marketing lesson woven in. The room is reserved through 7:30 PM. **Who this is for** Any local business owner who wants to grow through relationships, not just paid ads. Service businesses, retail, home services, professional services, online owners building local presence, anyone serious about being part of the Columbus business community. **Not the right fit if** You are here to pitch the room or recruit for an MLM. **Details** * Last Thursday of every month * 6:00 to 7:30 PM * COhatch Easton * Free to attend, RSVP required, space is limited **About the host** Rita Suzanne is a local marketing strategist and the founder of Local Marketing Method. She runs Visibility is Profitability, the membership where local owners build the system that keeps their phone ringing, including tracking the referral relationships built in rooms like this one. Learn more at learnlocalmarketing.com. Register here: [https://www.eventbrite.com/e/local-marketing-networking-night-tickets-1988510112275](https://www.eventbrite.com/e/local-marketing-networking-night-tickets-1988510112275)