Lean Startup

Sofia's social scene needs you on Monday. We're hosting a casual Sofia Expats meetup – a relaxed evening for locals and expats to meet, chat, and just enjoy good company. * Monday, 25 May * 19:00 * Edin Bar, Graf Ignatiev 24 Join the event on Facebook for updates: https://www.facebook.com/events/3061894383995653 Whether you moved here last week or you've been calling Sofia home for years, this is your chance to expand your circle a little. Come meet someone who's been through the same bureaucratic nightmare you have. Get a restaurant recommendation from a local. Or just have a fun Monday evening. We'll be somewhere central in Sofia. Exact location dropping soon – RSVP so you don't miss it. See you there! 🙋‍♀️ Coming solo? Don't worry. Maria and Liliya will be welcoming guests so you don't have to feel alone or awkward. \*\*\*\*\*\*\*\*\*\*\* [www.SofiaExpats.com](https://l.facebook.com/l.php?u=http%3A%2F%2Fwww.SofiaExpats.com%2F%3Ffbclid%3DIwZXh0bgNhZW0CMTAAYnJpZBExd3hHT2kwT0hYM1FJUVBqVHNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR4rvS_PRHmgSC7UU9UYlc-BPWM9KMuZiK56bB9rt7jEFcc0TkeZcoU4W66GwA_aem_FqS6xhLF7_vVzoLVjpptqg&h=AUCS35FfpViN9L_zstBoH9Kmyry7hnT_QM_RQnX_5ksaKMLJsnJA71iWkywvMisjH7MFCMVhwZxpki9iPopG677ADnR5MPEbBQl3AQzCUShitSjyy_c1ZZdPANmjbw60zGD7zOCSu2FrmZDIVH8&__tn__=q&c%5B0%5D=AUDP8EuZzbYxR3zlgOCMIfPqvxafb0aHHkC_-BxUbPdmnPqIrHOcUac9Tzd6NzkU1CHKRi0qGmkrJKdsn6Z51O2rr8-_rPbI2CaWLk81QOPR6wFrf8iiS8sTCs-KzIe8J2JLqkkKbjGy044mfEbxDNd9kBYNng) is your not-boring weekly newsletter for English-friendly events, activities and cultural tips. Subscribe to receive it every Monday. 📸 Keep in mind that pictures will be taken during the event for marketing purposes.

**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](http://foundersrc.com/chats) **Stay updated**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) Podcast [http://podcast.foundersrc.com/](http://podcast.foundersrc.com/) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC) Website [http://foundersrc.com/](http://foundersrc.com/)

*This event features presentations in both English and Bulgarian.* Силен старт на крипто лятото! Миналия месец се надявахме, че сме оцелели след дъното. Този месец видяхме токени, които се покачиха с до 50%. Изглежда не сме сгрешили. След месеци на спадове, несигурност и пазар, който дълго време изглеждаше изтощен, нещо най-после се размърда. И не само на графиките. Имаме три добри новини за този месец: Първо, пазарът показа зъби. Второ, САЩ продължават да бутат напред с добра крипто регулация. Трето (и може би най-забавното): Prediction Markets се оказаха толкова успешни, че България реши да ги блокира (за първи път още през февруари). Когато регулатор бърза да забрани нещо, обикновено това е знак, че там се случва нещо интересно. На следващия Sofia Crypto Meetup ще обсъдим: Кои токени се представиха най-добре и защо. Какво всъщност представляват Prediction Markets и защо толкова много хора (и държави) говорят за тях. Какво може да очакваме през лятото - кои са реалните сценарии, а не магическите прогнози. Никакви празни приказки, никакви обещания за бързо забогатяване. Просто разговор по същество, добър анализ и достатъчно време за въпроси и дискусия. Елате да го отпразнуваме заедно. Дъното е зад нас, лятото е пред нас, а разговорът ще бъде интересен. Очаквайте и много специален гост!

Последно за сезона издание преди лятната ваканция! ☀️ И това ако не е повод да се видим! 🙂🎉 **Python Meetup @ Sofia** 🐍 е тук през май 🌸 с интересна тема 💡 и почерпка 🍻 преди така дългоочакваните летни месеци! Ще се съберем в края на май 📅, ще споделим опит 🤓, ще се почерпим 🍹 и ще си поговорим 💬, по стара пайтънмийтъпска традиция ;) **🗓️ Датата е 26-ти май, а мястото е 📍Barter Community Hub 🏢.** **Започваме в ⏰ 19:00ч.** 🎫 Събитието е напълно безплатно ✅, нужно е само да потвърдиш присъствие тук 🙌 📢 Тема: **Async Python: The (bright) future after the end of GIL** 👨‍💻 Лектор: **Ивайло Дончев** 💭 **За какво ще си говорим:** Когато говорим за асинхронното програмиране с Python 🐍, винаги изниква една мистична абревиатура - GIL 🤔. В лекцията ще говорим за това как се промени асинхронното програмиране в python през годините 📈, какво е GIL, защо беше нужен, защо беше нужно да се премахне ❌ и какво означава това на практика ⚙️. Лекцията ще бъде на български език! 🇧🇬 🎙️ **За лектора:** Ивайло Дончев е Senior Full Stack developer 👨‍💻 и Technical Team Lead 🧠 в Waracle (България). Има 10+ години опит с Python 🐍 и Django, лектор на EuroPython 2018, 2022 и 2023 🎤 и лектор на курсовете на HackBulgaria 📚. След лекцията продължаваме в networking частта 🤝 с традиционната почерпка 🍻 от нашите партньори от **[Waracle](https://waracle.com/)** 🙏. Разбира се, ще има и томбола 🎁. А след това ще се отдадем на заслужена лятна почивка 🏖️ и ще се видим отново през септември 🍂! Както се казва, да сме живи и здрави! 🙏 Очакваме те на 26-ти май в Barter Community Hub!📍 Започваме точно в 19:00! ⏰ \-\-\- Final edition of the season before the summer break! ☀️ If that’s not a reason to get together, we don’t know what is! 🙂🎉 **Python Meetup @ Sofia** 🐍 is back this May 🌸 with a great topic 💡 and some treats 🍻 before we head into those long-awaited summer months! We’re gathering at the end of May 📅 to share knowledge 🤓, grab a drink 🍹, and catch up 💬, just like in the good old Python Meetup tradition ;) 🗓️ Date: **May 26** 📍 Location: **Barter Community Hub** 🏢 ⏰ Time: **19:00** 🎫 The event is completely free ✅ - just make sure to RSVP 🙌 📢 Topic: **Async Python: The (bright) future after the end of GIL** 🚀 👨‍💻 Speaker: **Ivaylo Donchev** **💭 What we’ll cover:** When we talk about asynchronous programming with Python, a mysterious abbreviation always comes up - GIL. 🤔 In the lecture we will talk about how asynchronous programming in Python has changed over the years 📈, what GIL is, why it was needed, why it needed to be removed❌ and what it means in practice.⚙️ The talk will be in Bulgarian 🇧🇬. 🎙️ **About the speaker:** Ivaylo Donchev is a Senior Full Stack Developer 👨‍💻 and Technical Team Lead 🧠 at Waracle (Bulgaria). He has 10+ years of experience with Python 🐍 and Django, has spoken at EuroPython (2018, 2022, 2023) 🎤, and is also a lecturer at HackBulgaria 📚. After the talk, we’ll continue with a networking session 🤝, featuring complimentary drinks 🍻 kindly provided by our partners at **[Waracle](https://waracle.com/)**[ ](https://waracle.com/)🙏. And yes… there will be a raffle 🎁! Then it’s time for a well-deserved summer break 🏖️, and we’ll be back in September 🍂. Until then - stay awesome and take care! 🙏 See you on May 26 at Barter Community Hub!📍 We start right at 19:00 ⏰

Здравейте, WordPress хора! Както знаете, благодарение на Matt Mullenweg и Mike Little, на 27 май 2003 г. един млад проект с отворен код направи първите си стъпки в света - и ето ни 23 години по-късно, все още влюбени в него. Двама души го създадоха, но хиляди доброволци, разработчици, дизайнери и ентусиасти по целия свят го превърнаха в това, което е днес. Затова на 27 май 2026 г. отново ще се съберем в София, за да вдигнем тост (и хапнем парче торта) за рождения ден на любимата ни платформа! Какво ни очаква? Среща с хора, които говорят на нашия език - този на темите, плъгините, къстъмизациите и късните нощи в WordPress редактора. Очакват ни разговори, хапване, торта и онова специално усещане, когато общността се събере на едно място. Докато ние празнуваме в София, хиляди WordPress ентусиасти по целия свят правят същото – а ние сме част от тази голяма картина. Без значение дали си разработчик с 15 години стаж, дизайнер, който прави първия си сайт, блогър, агенция или просто човек, който обича отворения код – има място за теб на тази маса. Малко повече инфо: 🎟️ Събитието е напълно безплатно. Единственото, което трябва да направите, е да се регистрирате в събитието в Meetup.com. 📍 Мястото? Добре познатото ни Sky Beauty Lab! 👕 Донеси любимият си суаг! Извади от гардероба най-готината WordPress тениска, шапката с логото, чорапите с Wapuu – каквото имаш. И не забравяй да публикуваш снимки с хаштаговете #WP23 и #WP23Sofia, за да покажем на света как празнува българската общност. Благодарности: Това парти нямаше да е възможно без партньорите ни, които стоят зад WordPress Sofia Meetup и общността ни вече години наред – [SuperHosting.BG](SuperHosting.BG), [Delta.BG](Delta.BG), [Jump.bg](Jump.bg) и [JetHost.BG](JetHost.BG). Благодарим ви, приятели! <3 Заредете доброто си настроение, отворете календара и си запазете датата. За тези, които не знаят: месечните срещи на WordPress Sofia Meetup събират десетки хора (независимо дали са професионалисти или абсолютно начинаещи), които по някакъв начин са свързани с най-използваната система за управление на съдържанието в света. Те са напълно безплатни и отворени за всички, които обичат WordPress - единственото нещо, което трябва да направите, за да присъствате, е да се регистрирате в събитията тук. Очакваме ви! Фори, Ники, Явор

Sofia's social scene needs you on Monday. We're hosting a casual Sofia Expats meetup – a relaxed evening for locals and expats to meet, chat, and just enjoy good company. * Monday, 25 May * 19:00 * Edin Bar, Graf Ignatiev 24 Join the event on Facebook for updates: https://www.facebook.com/events/3061894383995653 Whether you moved here last week or you've been calling Sofia home for years, this is your chance to expand your circle a little. Come meet someone who's been through the same bureaucratic nightmare you have. Get a restaurant recommendation from a local. Or just have a fun Monday evening. We'll be somewhere central in Sofia. Exact location dropping soon – RSVP so you don't miss it. See you there! 🙋‍♀️ Coming solo? Don't worry. Maria and Liliya will be welcoming guests so you don't have to feel alone or awkward. \*\*\*\*\*\*\*\*\*\*\* [www.SofiaExpats.com](https://l.facebook.com/l.php?u=http%3A%2F%2Fwww.SofiaExpats.com%2F%3Ffbclid%3DIwZXh0bgNhZW0CMTAAYnJpZBExd3hHT2kwT0hYM1FJUVBqVHNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR4rvS_PRHmgSC7UU9UYlc-BPWM9KMuZiK56bB9rt7jEFcc0TkeZcoU4W66GwA_aem_FqS6xhLF7_vVzoLVjpptqg&h=AUCS35FfpViN9L_zstBoH9Kmyry7hnT_QM_RQnX_5ksaKMLJsnJA71iWkywvMisjH7MFCMVhwZxpki9iPopG677ADnR5MPEbBQl3AQzCUShitSjyy_c1ZZdPANmjbw60zGD7zOCSu2FrmZDIVH8&__tn__=q&c%5B0%5D=AUDP8EuZzbYxR3zlgOCMIfPqvxafb0aHHkC_-BxUbPdmnPqIrHOcUac9Tzd6NzkU1CHKRi0qGmkrJKdsn6Z51O2rr8-_rPbI2CaWLk81QOPR6wFrf8iiS8sTCs-KzIe8J2JLqkkKbjGy044mfEbxDNd9kBYNng) is your not-boring weekly newsletter for English-friendly events, activities and cultural tips. Subscribe to receive it every Monday. 📸 Keep in mind that pictures will be taken during the event for marketing purposes.

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!

**Let’s kick off our very first CBUS Maker Meetup!** Whether you are looking to carve out dedicated creative time, wanting to get a lingering project across the finish line, or just looking to chat with fellow local makers—this is the space for you. 🧵 **What to Bring** Bring any art or craft project you are currently working on, as long as it is portable and quiet. Think: * **Yarn & Thread:** Knitting, crochet, embroidery, cross-stitch, hand-sewing, mending. * **Paper & Sketching:** Sketchbooks, adult coloring books, watercolors, bullet journaling. * **Digital:** Tablets, iPad drawing, laptop writing/design. * *Please note: Because we are meeting in a shared public space, no power tools, sewing machines, or high-odor materials (like strong solvents or spray glues), please!* **📍 Where to Find Us** * We will be meeting at **Columbus Metropolitan Library - Karl Road Branch** in **Meeting Room 1**. Room is reserved under **CBUS Maker Meetup.** **⏱️ Timeline** * **1:00 PM:** Arrive, grab a seat, get settled, and do a quick round of introductions so we can see what everyone is working on. * **1:15 PM - 3:00 PM:** Open maker time! Chat, craft, relax, and swap creative ideas. **⚠️ A Note on RSVPs** Space for this first meetup is strictly limited to 10 spots. If your plans change and you can no longer attend, please update your RSVP to "Not Going" as soon as possible so someone on the waitlist can grab your spot. We ask that you try to give at least 48 hours' notice if you need to cancel. *** **We can't wait to meet you and see what you're making! All skill levels welcome.**

Please reserve your spot by registering on the below link : **Reserve** https://www.eventbrite.com/e/join-biggest-community-investors-founders-columbus-online-tickets-1988563717610?aff=meetup **QUESTIONS ?** Pls Reach out to; Ridhi - +971504724873 ( WhatsApp Only)

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**❤️‍🔥 Richmond Online Speed Dating on Zoom** Online speed dating for Richmond locals — personality matched, hosted live on Zoom. **Choose your age range to sign up:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Richmond&groupurlname=build-real-connections-at-day-trips&ar=18-32&face_v=9.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Richmond&groupurlname=build-real-connections-at-day-trips&ar=30-46&face_v=9.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Richmond&groupurlname=build-real-connections-at-day-trips&ar=40-58&face_v=9.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=537.0&productType=onlineSpeedDating&city=Richmond&groupurlname=build-real-connections-at-day-trips&ar=55+&face_v=9.0) **⚠️ Your RSVP doesn't confirm a place.** Click your age group below, register, and take the personality quiz. Spots are limited. --- **How It Works** 1. **Register** – Pick your age group above and sign up. 2. **Take the quiz** – Short personality quiz so we can match you well. 3. **Join on Zoom** – Your host will guide you through every round. 4. **Get matches** – Mutual matches sent after the event. --- ✨ Speed dating from home — easy, matched, and fun. 💕 ✨

**Get your creative flow going with a Sunday Afternoon Maker Meetup!** Whether you are looking to carve out dedicated creative time, wanting to get a lingering project across the finish line, or just looking to chat with fellow local makers—this is the space for you. 🧵 **What to Bring** Bring any art or craft project you are currently working on, as long as it is portable and quiet. Think: * **Yarn & Thread:** Knitting, crochet, embroidery, cross-stitch, hand-sewing, mending. * **Paper & Sketching:** Sketchbooks, adult coloring books, watercolors, bullet journaling. * **Digital:** Tablets, iPad drawing, laptop writing/design. * *Please note: Because we are meeting in a shared public space, no power tools, sewing machines, or high-odor materials (like strong solvents or spray glues), please!* **📍 Where to Find Us** * We will be meeting at **Columbus Metropolitan Library - Martin Luther King Branch** in **Meeting Room 1**. Room is reserved under **CBUS Maker Meetup.** **⏱️ Timeline** * **1:00 PM:** Arrive, grab a seat, get settled, and do a quick round of introductions so we can see what everyone is working on. * **1:15 PM - 3:00 PM:** Open maker time! Chat, craft, relax, and swap creative ideas. **⚠️ A Note on RSVPs** Space for this first meetup is strictly limited to 10 spots. If your plans change and you can no longer attend, please update your RSVP to "Not Going" as soon as possible so someone on the waitlist can grab your spot. We ask that you try to give at least 48 hours' notice if you need to cancel. *** **We can't wait to meet you and see what you're making! All skill levels welcome.**

Join other experienced and aspiring agile coaches and professionals to: * develop and practice your coaching skills in a peer-to-peer environment * share current successes and challenges in your work environment and get support from each other * learn together, build better relationships and experiment with new ideas

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.