Hyperledger

**Python Meetup @ Sofia** продължава през април с пролетно настроение 🌼 и интересна тема .💡 Следвеликденско, традицията повелява да се съберем в края на месеца 📅, да научим нещо ново 📚, да споделим опит 🤝 и да си спретнем един networking 🧑‍💼, както си му е редът. 🗓️ Датата е **28-ми април**, а мястото е 📍**Barter Community Hub** 🏢. Започваме в ⏰ **19:00ч**. 🎫 Събитието е **напълно безплатно** ✅, нужно е само да потвърдиш присъствие тук 🙌 📢 Тема: **Prefect is almost Perfect!** ✨ 👨‍💻 Лектор: **Борислав Варадинов** 💭 **За какво ще си говорим:** Prefect е съвременен инструмент за оркестрация на работни процеси ⚙️ (workflow orchestration), създаден с мисъл за разработчиците 👩‍💻👨‍💻, или както самите те казват, „проектиран за хора“ 🤝. За разлика от много други оркестратори, базирани на DSL-и 🧩 или тежки конфигурации ⚠️, Prefect ви позволява да описвате workflows директно на Python 🐍 - по интуитивен, четим и лесен за усвояване начин 📖. Подходът е изчистен и елегантен: дефинирате flows и task-ове като обикновени Python функции, което намалява кривата на обучение 📉 и помага кодът да остане структуриран и консистентен.🧱 **🎙️ За лектора:** Борислав е страстен Senior Principal Engineer 🚀 и DevOps Advocate 🛠️ с богат опит в разработването, автоматизацията 🤖, инфраструктурата като код 🏗️ и управлението на конфигурации ⚙️. В момента допринася за иновативни проекти в Dell Technologies 💻. Има опит в работата с различни езици за програмиране, но през последните години истинската му страст е Python 🐍. След лекцията продължаваме в **networking частта** 🤝 с вкусна почерпка 🍕 (без козунаци 😄) и напитки 🥤, за които специално благодарим на нашите партньори от **[Waracle](https://waracle.com/)** 🙏. А някой от вас ще си тръгне и с малък подарък 🎁 от томболата ни. Очакваме те на **28-ми април** в **Barter Community Hub**!📍 Започваме точно в 19:00! ⏰ \-\-\- **Python Meetup @ Sofia, April Edition 🐍🌸** **Python Meetup @ Sofia** continues this April with a fresh spring vibe 🌼 and an exciting topic 💡 Post-Easter tradition calls for us to gather at the end of the month 📅, learn something new 📚, share knowledge 🤝, and, of course, do some proper networking. 🧑‍💼 🗓️ The date is **April 28th**, and the place is 📍**Barter Community Hub** 🏢. We kick off at ⏰ 19:00. 🎫 The event is **completely free** ✅ - all you need to do is confirm your attendance here 🙌 📢 Topic: **Prefect is almost Perfect! ✨** 👨‍💻 Speaker: **Borislav Varadinov** 💭 **What we’ll talk about:** Prefect is a modern workflow orchestration engine built with developers in mind - or as they say, designed for humans👩‍💻👨‍💻. Unlike many orchestrators built on DSLs 🧩or heavy configurations, Prefect lets you write workflows in plain Python 🐍 - intuitive, readable, and easy to pick up. It is a clean and elegant. You define flows and tasks just like normal Python functions, which reduces the learning curve and keeps your project clean and consistent.🧱 **🎙️ About the speaker:** Borislav is a passionate Senior Principal Engineer 🚀and DevOps Advocate 🛠️with extensive experience in development, automation🤖, infrastructure as code, and configuration management. Currently contributing to cutting-edge projects at Dell Technologies💻. He has experience working with various programming languages, but in recent years, his true passion is Python 🐍. After the talk, we’ll continue with a **networking session** 🤝 featuring some tasty snacks 🍕 (no Easter bread 😄) and drinks 🥤 — with special thanks to our partners at **[Waracle](https://waracle.com/)** 🙏. And some of you might even walk away with a small prize 🎁 from our **raffle**. We’re looking forward to seeing you on **April 28th** at \*\*Barter Community Hub!\*\*📍 We start sharp at 19:00. ⏰

**\>\>\>\>\> IMPORTANT: Use this link to register for the event \(registration is FREE but REQUIRED\):** [https://luma.com/ekyynha3](https://luma.com/ekyynha3) **<<<<<** **Our most important annual event will take place on Tuesday, April 28 at 7 PM.** ​**ABOUT THE EVENT** ​Join us for the 2026 edition of our flagship annual gathering - an essential event for product managers, aspiring PMs, and anyone curious about the evolving product management landscape in Bulgaria. As artificial intelligence reshapes industries and transforms how products are built, this year's edition explores what it means to be a product manager in an AI-driven world. ​In the first part of the evening, our team will present the findings from the Annual PM Ecosystem Survey 2026, offering a comprehensive understanding of the product management profession in Bulgaria during this pivotal moment of technological change. ​You'll gain insights into how product companies in Bulgaria are adapting to AI, the evolving profiles and backgrounds of product managers navigating this new landscape, the most pressing challenges PMs face as they integrate AI into their work, and guidance on how to start your journey if you're considering a career in product management. ​The presentation will also cover average salary rates across different seniority levels - from junior to senior and director-level positions - as well as emerging ways of working that are reshaping the product management profession in the age of artificial intelligence. ​Following the presentation, a panel discussion (speakers TBA) will bring together three accomplished product professionals who will share their unique approaches to product development and AI integration within their respective organizations. ​They will provide candid insights into how the PM profession has evolved and discuss the strategies, challenges, and opportunities that define product management in 2026. ​**SECURE YOUR SPOT** ​Given the overwhelming interest in previous editions, we encourage you to **register early to guarantee your place**. ​Don't miss this opportunity to connect with fellow product professionals, gain insights into the future of product management, and be part of the conversation shaping the industry in 2026. ​**ABOUT THE SPONSOR** ​*S*umUp is a global fintech on a mission to level the playing field for small businesses - 4M+ merchants, 37 markets, one goal. Starting with mPOS in 2012, we've grown into a rich ecosystem covering payments, POS, accounting, loyalty programs, business analytics, and more - all in one place. Our vision is bold: to build the first-ever global card acceptance brand. To get there, we rely on local, autonomous, cross-functional squads who take an aspect of the product and perfect it from concept to execution. Our product philosophy is simple: understand real needs, seize the right opportunities, and build with care.

Шест поредни месеца на спадове. Рекорд. А март най-после затвори на зелено. Видяхме ли дъното? На фона на геополитическо напрежение, несигурност и пазар, който дълго време изглеждаше изтощен, Bitcoin все пак завърши март нагоре. Дали това е знак, че дъното вече е зад нас? Или просто кратка пауза преди следващото движение? На следващия Sofia Crypto Meetup ще се фокусираме основно върху Bitcoin и големия въпрос: Видяхме ли вече най-ниските нива в този цикъл? Ще обсъдим: Какво означават шестте поредни месеца на спад и защо март е толкова важен сигнал за пазара? Кои други проекти имат шанс не просто да целеят, а да излязат по-силни от този период? Фокусът ще бъде върху това кои сигнали наистина имат значение и кои проекти могат да преминат през трудния период с реални шансове за следващия етап на пазара. Без излишен шум, без магически прогнози, само добър разговор, смислен анализ и достатъчно време за въпроси и дискусия. Елате, за да обсъдим дъното заедно... И за да можете един ден да кажете: I survived the bottom!

**Python Meetup @ Sofia** продължава през април с пролетно настроение 🌼 и интересна тема .💡 Следвеликденско, традицията повелява да се съберем в края на месеца 📅, да научим нещо ново 📚, да споделим опит 🤝 и да си спретнем един networking 🧑‍💼, както си му е редът. 🗓️ Датата е **28-ми април**, а мястото е 📍**Barter Community Hub** 🏢. Започваме в ⏰ **19:00ч**. 🎫 Събитието е **напълно безплатно** ✅, нужно е само да потвърдиш присъствие тук 🙌 📢 Тема: **Prefect is almost Perfect!** ✨ 👨‍💻 Лектор: **Борислав Варадинов** 💭 **За какво ще си говорим:** Prefect е съвременен инструмент за оркестрация на работни процеси ⚙️ (workflow orchestration), създаден с мисъл за разработчиците 👩‍💻👨‍💻, или както самите те казват, „проектиран за хора“ 🤝. За разлика от много други оркестратори, базирани на DSL-и 🧩 или тежки конфигурации ⚠️, Prefect ви позволява да описвате workflows директно на Python 🐍 - по интуитивен, четим и лесен за усвояване начин 📖. Подходът е изчистен и елегантен: дефинирате flows и task-ове като обикновени Python функции, което намалява кривата на обучение 📉 и помага кодът да остане структуриран и консистентен.🧱 **🎙️ За лектора:** Борислав е страстен Senior Principal Engineer 🚀 и DevOps Advocate 🛠️ с богат опит в разработването, автоматизацията 🤖, инфраструктурата като код 🏗️ и управлението на конфигурации ⚙️. В момента допринася за иновативни проекти в Dell Technologies 💻. Има опит в работата с различни езици за програмиране, но през последните години истинската му страст е Python 🐍. След лекцията продължаваме в **networking частта** 🤝 с вкусна почерпка 🍕 (без козунаци 😄) и напитки 🥤, за които специално благодарим на нашите партньори от **[Waracle](https://waracle.com/)** 🙏. А някой от вас ще си тръгне и с малък подарък 🎁 от томболата ни. Очакваме те на **28-ми април** в **Barter Community Hub**!📍 Започваме точно в 19:00! ⏰ \-\-\- **Python Meetup @ Sofia, April Edition 🐍🌸** **Python Meetup @ Sofia** continues this April with a fresh spring vibe 🌼 and an exciting topic 💡 Post-Easter tradition calls for us to gather at the end of the month 📅, learn something new 📚, share knowledge 🤝, and, of course, do some proper networking. 🧑‍💼 🗓️ The date is **April 28th**, and the place is 📍**Barter Community Hub** 🏢. We kick off at ⏰ 19:00. 🎫 The event is **completely free** ✅ - all you need to do is confirm your attendance here 🙌 📢 Topic: **Prefect is almost Perfect! ✨** 👨‍💻 Speaker: **Borislav Varadinov** 💭 **What we’ll talk about:** Prefect is a modern workflow orchestration engine built with developers in mind - or as they say, designed for humans👩‍💻👨‍💻. Unlike many orchestrators built on DSLs 🧩or heavy configurations, Prefect lets you write workflows in plain Python 🐍 - intuitive, readable, and easy to pick up. It is a clean and elegant. You define flows and tasks just like normal Python functions, which reduces the learning curve and keeps your project clean and consistent.🧱 **🎙️ About the speaker:** Borislav is a passionate Senior Principal Engineer 🚀and DevOps Advocate 🛠️with extensive experience in development, automation🤖, infrastructure as code, and configuration management. Currently contributing to cutting-edge projects at Dell Technologies💻. He has experience working with various programming languages, but in recent years, his true passion is Python 🐍. After the talk, we’ll continue with a **networking session** 🤝 featuring some tasty snacks 🍕 (no Easter bread 😄) and drinks 🥤 — with special thanks to our partners at **[Waracle](https://waracle.com/)** 🙏. And some of you might even walk away with a small prize 🎁 from our **raffle**. We’re looking forward to seeing you on **April 28th** at \*\*Barter Community Hub!\*\*📍 We start sharp at 19:00. ⏰

OWASP Sofia Chapter ви кани на ново събитие, посветено на **AppSec, DevSecOps и киберсигурност в практиката**. Събитието ще се състои в офиса на нашите любезни партньори от [Progress](https://www.progress.com/) 🤝 **📌 Програма за 30 април 2026:** * 19:00 ч. - Начало и въведение * 19:15 ч. - [Георги Рибарски](https://www.linkedin.com/in/gribarski/) @ [Progress](https://www.progress.com/) \- "**SAM(M) v Korporaciq**" * 20:00 ч. - [Антон Санков](https://www.linkedin.com/in/asankov/) @ [CAST AI](https://cast.ai/) \- "**Beyond Scanning: Teaching AI to Actually Fix Container Vulnerabilities**" * 20:45 ч. - Здравко Здравков @ [Vigilis Defense](https://vigilisdefense.com/) \- "**Архитектура на една POS атака.**" * 21:30 ч. - Q&A / Networking * 22:00 ч. - Закриване Събитието ще се проведе на живо в офиса на [Progress](https://maps.app.goo.gl/unHVZspnrL83gLq79). От скоро имаме и нов сайт **[www.owasp.bg](www.owasp.bg)** * [Чат с общтноста в Дискорд](https://discord.com/channels/849266967856414731/981867323298312223) * Последвайте нашите [LinkedIn](https://www.linkedin.com/company/107314221/) и [Facebook](https://www.facebook.com/owaspbg) страници * [Споделете и презентирайте през Sessionize](https://sessionize.com/owasp-sofia/) \- винаги търсим нови спийкъри\. Очакваме ви! 🚀

**\>\>\>\>\> IMPORTANT: Use this link to register for the event \(registration is FREE but REQUIRED\):** [https://luma.com/ekyynha3](https://luma.com/ekyynha3) **<<<<<** **Our most important annual event will take place on Tuesday, April 28 at 7 PM.** ​**ABOUT THE EVENT** ​Join us for the 2026 edition of our flagship annual gathering - an essential event for product managers, aspiring PMs, and anyone curious about the evolving product management landscape in Bulgaria. As artificial intelligence reshapes industries and transforms how products are built, this year's edition explores what it means to be a product manager in an AI-driven world. ​In the first part of the evening, our team will present the findings from the Annual PM Ecosystem Survey 2026, offering a comprehensive understanding of the product management profession in Bulgaria during this pivotal moment of technological change. ​You'll gain insights into how product companies in Bulgaria are adapting to AI, the evolving profiles and backgrounds of product managers navigating this new landscape, the most pressing challenges PMs face as they integrate AI into their work, and guidance on how to start your journey if you're considering a career in product management. ​The presentation will also cover average salary rates across different seniority levels - from junior to senior and director-level positions - as well as emerging ways of working that are reshaping the product management profession in the age of artificial intelligence. ​Following the presentation, a panel discussion (speakers TBA) will bring together three accomplished product professionals who will share their unique approaches to product development and AI integration within their respective organizations. ​They will provide candid insights into how the PM profession has evolved and discuss the strategies, challenges, and opportunities that define product management in 2026. ​**SECURE YOUR SPOT** ​Given the overwhelming interest in previous editions, we encourage you to **register early to guarantee your place**. ​Don't miss this opportunity to connect with fellow product professionals, gain insights into the future of product management, and be part of the conversation shaping the industry in 2026. ​**ABOUT THE SPONSOR** ​*S*umUp is a global fintech on a mission to level the playing field for small businesses - 4M+ merchants, 37 markets, one goal. Starting with mPOS in 2012, we've grown into a rich ecosystem covering payments, POS, accounting, loyalty programs, business analytics, and more - all in one place. Our vision is bold: to build the first-ever global card acceptance brand. To get there, we rely on local, autonomous, cross-functional squads who take an aspect of the product and perfect it from concept to execution. Our product philosophy is simple: understand real needs, seize the right opportunities, and build with care.

**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/)

## **Fashion and Nigeria** **What can Europe learn from Nigerian culture and fashion?** *** Fashion designer and personal stylist **Boryana Vatova** traveled to Nigeria in 2018 and stayed there until 2020. The reason – an invitation to teach fashion at the *Learn and Work* academy, where she later became Head of the Design Department. Boryana shares: *"When I moved to Nigeria, I realized how different the culture is from the European one. At first, it was difficult for me to find the right way to communicate. That’s when I started studying human nature more deeply and understood that if you approach people with genuine interest and respect, cultural differences become a bridge rather than a barrier. Gradually, I built a very strong connection with my students and the people there. They accepted me deeply and authentically, which was a great gift for me. Nigeria taught me to notice the small things, to be grateful, and to value human connection above all else."* On April 26th, we invite you to a first-hand story with both professional and personal perspectives. Through many photos, videos, and engaging stories, we will explore the following topics: • The *Learn and Work* Academy and the educational model between Italy and Nigeria • The students – their ambition and attitude toward knowledge and fashion • Nigerian fashion energy – colors, silhouettes, textiles, symbolism • Cultural identity as the foundation of style • How elements of African aesthetics can be integrated into the European fashion context The idea is to show that cultural exchange is not one-way – it is a dialogue. At the end of the talk, you will have the opportunity to ask your questions to Boryana Vatova about her experience in Nigeria, its culture, and of course – her work in fashion. 📅 **Date:** April 29, 2026 ⏰ **Time:** 20:30 – 22:30 🍷 A complimentary drink is included in a cozy atmosphere. 🎟️ **Participation fee:** €15 Please contact us to reserve your spot. 📍 **Location:** AfriKaya Studio, Lozenets district, 56–58 Krum Popov St., 3rd floor *** **More about Boryana Vatova:** My name is Boryana Vatova and I am a fashion designer and personal stylist. Between 2018 and 2020, I lived and worked in Nigeria, where I taught fashion at the private *Learn and Work* academy – an institution based on an Italian-Nigerian partnership. I later became Head of the Design Department. This experience changed not only my professional path but also the way I communicate and build relationships with people. Nigeria taught me gratitude for the small things and deep respect for cultural identity. Today, this is reflected in my work – I build strong personal connections with the people I work with and believe that fashion is a bridge between cultures. 🌐 Website: [Boryana Vatova Official Website](https://www.boriannavatova.com/?utm_source=chatgpt.com)

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

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

**Unleash Your Inner Oracle: The Polymarket Edge** Prediction markets aren't just for finance geeks. This masterclass reveals the secrets to profiting from your insights on Polymarket, the leading platform for event-based predictions. **Is This You?** * Love probability and gut-feel decisions? * Always ahead of the curve on emerging news? * Curious about a hot new investment vehicle? * Ready to turn knowledge into pure, sweet gains? * A sophisticated trader looking to diversify? If yes, keep reading... **Agenda: From ZERO to HERO** * Deep dive into Polymarket: account setup, trading mechanics, and the ins and outs. * Decoding the Matrix: Event analysis frameworks to give yourself an advantage. * Fort Knox Your Capital: Master risk-management techniques that shield you. * Spotting the Signals: Reading market dynamics and grasping liquidity factors. * Crafting Your Fortress: Portfolio creation blueprints for consistent wealth. * The System is Key: Building a repeatable, winning prediction workflow. **Time is ticking…** Slots are super limited. Ready to level up? ### [🔥 SECURE YOUR SPOT NOW 🔥](https://remoteready.io/product/Polymarket?city=Columbus&groupurlname=circle-of-professionals-mastering-ai-income&startgmtdatetime=2026-05-01T22:00:00Z) --- **Cracking the Code of Polymarket.** Turn your analysis into profit.

**Welcome to the Women’s Columbus Bogleheads® Sub-Group** This sub-group is for **women who want to learn and discuss finances in a safe, supportive space**. For those interested in moving towards financial independence and retirement by learning investment basics, choosing your 401(k) investments, minimizing taxes, and more. We’re a local chapter of **Bogleheads®**, following a long-term, practical investment philosophy: [Investment Philosophy](https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy): https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy [Bogleheads Forum](https://www.bogleheads.org/index.php): https://www.bogleheads.org/index.php No question is too small, and no experience is too simple. Share, ask, and learn — at your own pace, without judgment, in a group of like-minded women. Let’s build confidence and knowledge **together**!

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!.

This is a free, in-person meeting on the subject of betrayals, losses and how to get over them so you can build lasting relationships. Burdened by a stressful relationship? Unhealthy relationships can trigger feelings of anger, despair or self-doubt. They can create dwindling spirals of fights and seeking to make-up, or trying to “pin the blame” on someone or something. If you don’t find the RIGHT reasons, or select the correct sources of the problem, the problem can just get worse and worse. Whether in love or personal ties, with friends or at work, our life really IS affected by the quality of our relationships. Good ones can promote pleasure and survival while less optimum ones can lead to annoyance, anger, self-doubt, stress, or even affect our health and ability to survive well. Whether you are suffering from a divorce, or a painful break-up, don’t know who to trust (or who to CHOOSE) as a partner, friend, boss or employee - the anxiety of relationship troubles can really make a mess of things. Maybe you’ve suffered a betrayal, or are dealing with hostility or criticalness or invalidation. Dwindling relationships can involve destructive behavior, where we hurt those we love, or start succumbing to self-destructive thoughts, attitudes or behaviors that spiral out of control and affect much more than our immediate relationship. Past losses in love or life can affect how we act or react to new people and situations and hold us back from even starting to create new, possibly great relationships! How can one get back onto a saner course of action? Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life: human relationships! Break free from self imposed limitations Here we will discuss: • How to “erase” the trauma of past hurts and betrayals so that one isn’t always repeating past mistakes. • Why and how do the negative emotions of others affect you? • Why is my partner withdrawing and what can I do about it? • Why do we sometimes feel compelled to hurt the ones we love? • Fights & arguments - what's really behind them? • What underlies “corrosive criticism” or the need to invalidate self or others? • How one can stably change one’s outlook on life so they can affect positive change? • Where do compulsive destructive behaviors come from and what can be done about them? • How to form closer bonds & keep growing the relationships with the people you care about? • How to enhance one’s own ability to survive and create positive healthy relationships whether in love, family & friendships or in work, business or one’s career? Relationships can be hard and life itself IS challenging. Why not arm yourself with the knowledge and breakthroughs that have been made about the mind, mental reactions & interpersonal relationships, so that one has better awareness and control over themselves and life in general. Learn where painful experiences are “stored” and how they can unknowingly affect us. You will also find out how one can “erase” those past painful experiences so that one is free to move forward without being tripped up by the past. Learn too, about what can lead some people to become “toxic” personalities and how to identify those traits in others so you won’t be tripped up trusting the wrong person. Our free Meet-ups occur in a safe environment where one can learn, without fear of judgment or criticism, and without the recommendation of harmful mental techniques or therapies, just how YOU can get yourself onto a happier & more successful path: in love & in life. We look forward to having you join us! This class is sponsored by the Dianetics & Scientology Life Improvement Center of Central Ohio.