Blockchain Security

ENG🇬🇧 Hello, We invite you to an open meeting for anyone interested in business, projects, and personal growth. This is not a lecture or a formal event, but a live space for communication in an open mic format. Here you can meet people, discuss ideas, share your experience, or simply gain a deeper understanding of how business and projects work. The meeting is suitable both for entrepreneurs and for those who are just starting their journey or want to explore this field. You can come with an idea, a project, or simply curiosity — and find people you’d like to grow with. We’ll talk about marketing, economics, project development, and modern opportunities, but most importantly, we’ll create a space for dialogue and meaningful connections. If this format of thoughtful communication and exchange resonates with you, We’ll be glad to see you there. CZ🇨🇿 Dobrý den, Zveme vás na otevřené setkání pro všechny, které zajímá byznys, projekty a osobní rozvoj. Nejde o přednášku ani formální akci, ale o živý prostor pro komunikaci ve formátu otevřeného mikrofonu. Můžete se zde seznámit s novými lidmi, sdílet své nápady a zkušenosti nebo lépe pochopit, jak funguje svět byznysu a projektů. Setkání je vhodné jak pro podnikatele, tak i pro ty, kteří jsou teprve na začátku své cesty nebo se chtějí do této oblasti více ponořit. Můžete přijít s vlastním nápadem, projektem nebo jen se zájmem — a najít lidi, se kterými budete chtít růst. Budeme mluvit o marketingu, ekonomice, rozvoji projektů a současných příležitostech, ale především vytvoříme prostor pro dialog a navazování nových kontaktů. Pokud vás tento formát smysluplné komunikace a sdílení oslovuje, budeme rádi, když dorazíte.

**The friendliest human pretzel making on a Sunday morning 🥨🥰** We gather at 10:00 AM for a quick warmup (everyone on their own) and then start the timer with 5-minute rounds and 30-60s rests. About 90% of people roll No-Gi. If you want to bring your Gi, make sure to reach out to someone to coordinate before you arrive. ✅ **No experience needed** → Ask someone to show you around. It is up to them if they will (this is not a formal class, but the vibe is always friendly!) 🥋 ✅ **No structure** → Roll every round, drill techniques, or just sit out and watch. 🤼 ✅ **No partner needed** → We rotate! Feel free to ask anyone taking a break. 👋 ✅ **Mat etiquette** → Clean gear, short nails, and flip-flops off the mat.🧼🩴 Wear a mouthguard (or do not complain afterwards!). 🛡️ ✅ **BONUS gym access** → Your entry includes access to the adjacent weight room if you want to pump some iron! 🦾 ✅ **Tickets** → Buy one entry to the GYM (150 CZK or a Multisport card) at the reception. **ASK for the RECEIPT** and have it ready to show before stepping onto the mat. 🎟️ *If you want to make new friends and have some good wrestles, grab your gear and let's make some Sunday pretzels!! 🥨🤼‍♂️🔥* **Pro-tip:** Bring a water bottle! 💧 Note that there is no big hangout afterwards—we warm up, roll, thank everybody, and then go home to enjoy the rest of our Sunday. ✌️

**6-a-side Football** practice at Pražačka Football artificial grass pitch. Maximum of 18 participants for 3 teams of 6. **Kick off at 12h00**. Everybody is welcome, no age, gender nor any restriction of any type to join. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/PjU32Fi In case of any Opt-out within 24h of the session, or no show, the payment will be due (you still can ask someone to come instead of you, as your spot will be booked)

Hello, we are starting SU&W at Scouts Institute this Sunday! Please find us at a table across from the cafe. The event starts at 12, and the writing starts at 12:15! We will have 45 minutes of writing, followed by a 15 minute break. Then another 45 minutes of writing. Please purchase something to support the cafe and the space ☺️ Follow us on Whatsapp! https://chat.whatsapp.com/HeZDsZNFD8BKn8JohRlbkI

Want to experience an urban farm on one of Prague’s river islands as we head into spring? Or just join a group of community motivated individuals and spend your Sunday in nature? Then come along on Sunday for an afternoon with Metrofarm to work on their farm on cizarsky ostrov! Make sure to wear something suitable for the weather, comfortable, that you won’t mind getting dirty, bring gloves if you have them - we have spares, and a water bottle. If you have any questions, contact Julia +420 737 890 656 or Wendy +420 731 873 300

Looking to meet new people and enjoy a relaxed day full of board games? Join us at Palmovka for a cozy board-gaming meet-up open to everyone — beginners, casual players, and experienced gamers! We have a big selection of games, from easy social titles to strategic favourites. You can come alone or with friends — our community is super friendly, and we always make sure nobody sits alone. Don’t worry if you don’t know the rules — we’ll happily explain everything. ✔ Friendly atmosphere ✔ Lots of games to choose from ✔ Perfect for meeting new people ✔ Come anytime during the day ✔ No registration needed entry fee 50czk (no hour limit) if you do not order anything at bar it is 100czk. Whether you want to laugh, think, or just relax after a long day, this is the perfect place to unwind and connect with others. See you at Palmovka – let’s play!

Who can attend this meetup: The tour is an introduction to Prague and is mainly for expats and visitors to our city but everybody who would like to join is invited. ***Important***, please also fill in the booking form on our [website](https://freewalkingtourprague.eu/en/schedule) if you are planning to come (otherwise we will not expect you). Description: Meet us by the Powder Tower, the historical gate to the Old Town and starting point of the Royal Route. Then have an educative walk through the narrow and picturesque streets of the historical center of Prague. Enjoy the unique diversity of architectural styles from Gothic to Art Nouveau. See some of the most interesting sites and get to know fascinating facts and legends of the 1000-year old capital of Bohemia. End the tour at the riverside 5 minutes away from the Charles Bridge, from which you can continue the tour on your own (or again with us) towards Malá Strana or Prague Castle. ====== Meeting point: We will be standing by the Powder Tower at the side of the Namestí Republiky square with a green umbrella in hand :) Map: https://goo.gl/maps/tzqKpZ2945S2 Price: there is no fixed price, you will be able to decide yourself how much you value the tour. If you don't know how much is best (and can afford it) we recommend 200Kč, but it really depends on you how much you contribute. Join us also on our [Facebook profile](https://www.facebook.com/freewalkingtoursprague/) :) and if you are travelling to other cities check out our friends at the [Free Tour Community website](https://freetourcommunity.com/). For any questions, please contact us at info@freewalkingtourprague.eu. Unfortunately, the meetup application does not always send us phone notifications. Reminder - only people who booked on our [official free walking tour website](https://freewalkingtourprague.eu/en/schedule) can join the tour and if the tour shows fully booked on the website it means there are no free spots. The meetup list doesn't count in this case. We look forward to meeting you, Michal, Amanda, Lana, Iva & Chris

Want to experience an urban farm on one of Prague’s river islands as we head into spring? Or just join a group of community motivated individuals and spend your Sunday in nature? Then come along on Sunday for an afternoon with Metrofarm to work on their farm on cizarsky ostrov! Make sure to wear something suitable for the weather, comfortable, that you won’t mind getting dirty, bring gloves if you have them - we have spares, and a water bottle. If you have any questions, contact Julia +420 737 890 656 or Wendy +420 731 873 300

Looking to meet new people and enjoy a relaxed day full of board games? Join us at Palmovka for a cozy board-gaming meet-up open to everyone — beginners, casual players, and experienced gamers! We have a big selection of games, from easy social titles to strategic favourites. You can come alone or with friends — our community is super friendly, and we always make sure nobody sits alone. Don’t worry if you don’t know the rules — we’ll happily explain everything. ✔ Friendly atmosphere ✔ Lots of games to choose from ✔ Perfect for meeting new people ✔ Come anytime during the day ✔ No registration needed entry fee 50czk (no hour limit) if you do not order anything at bar it is 100czk. Whether you want to laugh, think, or just relax after a long day, this is the perfect place to unwind and connect with others. See you at Palmovka – let’s play!

Who can attend this meetup: The tour is an introduction to Prague and is mainly for expats and visitors to our city but everybody who would like to join is invited. ***Important***, please also fill in the booking form on our [website](https://freewalkingtourprague.eu/en/schedule) if you are planning to come (otherwise we will not expect you). Description: Meet us by the Powder Tower, the historical gate to the Old Town and starting point of the Royal Route. Then have an educative walk through the narrow and picturesque streets of the historical center of Prague. Enjoy the unique diversity of architectural styles from Gothic to Art Nouveau. See some of the most interesting sites and get to know fascinating facts and legends of the 1000-year old capital of Bohemia. End the tour at the riverside 5 minutes away from the Charles Bridge, from which you can continue the tour on your own (or again with us) towards Malá Strana or Prague Castle. ====== Meeting point: We will be standing by the Powder Tower at the side of the Namestí Republiky square with a green umbrella in hand :) Map: https://goo.gl/maps/tzqKpZ2945S2 Price: there is no fixed price, you will be able to decide yourself how much you value the tour. If you don't know how much is best (and can afford it) we recommend 200Kč, but it really depends on you how much you contribute. Join us also on our [Facebook profile](https://www.facebook.com/freewalkingtoursprague/) :) and if you are travelling to other cities check out our friends at the [Free Tour Community website](https://freetourcommunity.com/). For any questions, please contact us at info@freewalkingtourprague.eu. Unfortunately, the meetup application does not always send us phone notifications. Reminder - only people who booked on our [official free walking tour website](https://freewalkingtourprague.eu/en/schedule) can join the tour and if the tour shows fully booked on the website it means there are no free spots. The meetup list doesn't count in this case. We look forward to meeting you, Michal, Amanda, Lana, Iva & Chris

Let's play badminton at Sports Centre Olšanka. We'll meet at 10.40 and play for 60 minutes. If you have a Multisport card please bring it along, as it will make the court free for you and also reduce the cost for others. If you don't have a Multisport card the game will cost you a maximum of 150 crowns, probably much less. I will cover the cost of the court so please bring cash to pay me. There is a small organisation fee of 20 crowns for all players to participate in this event. Racquets can be rented for 50 crowns.

**Pickleball Open Play 2v2 – Sun 10.5, 19:30 Start (Prague 13, Sportovní Centrum Jeremi)** Join our 60 minute open play pickleball session open to all. Sunday from 19:30 at Sportovní Centrum Jeremi in Prague 13. Teams are mixed on the spot, just show up and play! 🏓 **2v2 Mixed \| Sunday 19:30–20:30** 📍 Sportovní Centrum Jeremi, Prague 13 🏠 Indoor courts, changing rooms & showers on site 🎾 Rackets provided 💰 **Session fee: 289 Kč** ⚠️ Please wear clean indoor shoes (white soles preferred). **[SIGN UP HERE](https://www.vivasports.cz/pickleball)**

🏃 **SUNDAY RUN CLUB** is happening every week! Every Sunday we head out for a relaxed 5km run through Stromovka at an easy 6:00 min/km pace. No pressure, no racing, just good vibes and good people. Truly for everyone. And yes, it's completely FREE! 📍 **Meet** at Café Kolektor 🕐 **Pace**: \~6:00 min/km (easy for all levels) 📏 **Distance**: 5 km, Stromovka After the run we head back to Kolektor for a well earned coffee or a fresh summer drink. ☕🧃 Come solo, bring a friend. See you Sunday! 👟

### **Pick Up Football 7v7: Sun 3.5, 14:00 Start (Prague 8, ZŠ Burešova)** Join our **90** minute pick up football **7v7** game open to all. Sunday from 14:00 on a quality astro turf pitch in Ládví Prague 8. Teams are made on the spot, just show up and play. **[SIGN UP HERE](https://www.vivasports.cz/pick-up-football)**[ ](https://www.vivasports.cz/pick-up-football)

Come join us at Nova Labs for our monthly lockpicking meeting! We meet every third Wednesday at the Nova Labs Fairfax location at 3850 Jermantown Road. Learn about locks, lockpicking, lock modifications, and even lock smithing in our classroom environment. No tools, skills, or knowledge required, but feel free to bring any of those things with you! Our meetings are overseen by one or more locksmiths.

\#\# Details ## What to Expect: A Laid-Back Environment: Brew, Food, and Like-Minded Individuals. Grab a beer at the bar and join in! Networking: Short and Sweet Introductions to Kick Things Off. Connect with fellow tech professionals, exchange ideas, and broaden your network horizon. Our meetups are designed for meaningful interactions and creating a supportive community. (Just talk and have fun!) Agenda: 1\. Introductions 2\. Talk and Meet New People 3\. Enjoy Drafts\, Food\, and Conversation 4\. \*Drive Home Safely\* \*\*\ *ATTENTION \*\*\* We are meeting at Bunnyman Chantilly. Address: 14140 Parke Long Ct A-C, Chantilly, VA 20151

**Inflow 6:00 PM - Talks Start \~6:30 PM** **Reston Community Center - 2310 Colts Neck Rd, Reston, VA 20191** NoVA Hackers is a group located in the Northern Virginia area and is made up of Information Security Professionals from all walks of life, from government and private sector, to students and beginners. The monthly meetings are held much like a mini-conference with 4-8 speakers and only a few basic but strict rules. Participation and Permission Active Participation is required for continued membership and is the only due required. Permission is required to be obtained from anyone providing information to the group from the person providing it to be made public by anyone other than the provider. Historically our talks generally run a bit late and we have a hard stop at 9:30pm for the room. If you want to socialize we recommend you arrive at 6 to meet and greet before the talks. Agendas and remote meeting option available after you join the group.

Looking for a new skill? Want to seem mysterious when people ask about your hobbies? Enjoy puzzles? Lock picking might be right for you! Is this legal? Yes! Is it fun? Yes! The meeting is very casual, come and go as you please. We meet in the upstairs area of Board Room. No payment, skills, tools, or RSVP necessary. If you can make small precise movements with your hands, you can learn to pick locks. Introductory talk at 7pm. All are welcome. We meet in a bar but minors are allowed to attend. We are not in a private room; parental discretion advised. If you are a minor or are responsible for one who's attending, please email the organizer in advance at chapter-DC@toool.us Open invite; bring friends! We are the DC chapter of TOOOL. More information here: http://toool.us/

**ProductTank NoVA is back!** After a brief hiatus, we are relaunching the chapter with a format that cuts out the fluff and gets straight to the reality of building. Every product feed is flooded with AI hype right now, but what does it actually look like on the ground? Instead of a polished keynote, we are hosting **0 to 1 with AI: Real Product Talks**—a "Show & Tell" featuring 3–4 lightning talks focused on the intersection of AI and product. The framing for the talks is simple: *"Here is what I'm building, and here is what I'm stuck on."* We want to look at the messy, 0-to-1 reality of integrating AI into your workflows and products. *(Want to share what you are working on? Reach out! The bar is low-pressure, just 10–12 minutes to talk about a real AI problem you are trying to solve.)* **Agenda:** * **5:30 PM - 6:00 PM:** Doors open, networking, & name tags * **6:00 PM - 6:10 PM:** Welcome + Chapter Relaunch Intro * **6:10 PM - 7:30 PM:** Lightning Talks (Three 12-min talks + 5 mins Q&A each, with a 5-min stretch break) * **7:30 PM - 8:00 PM:** Open networking * **8:00 PM:** Soft close **Location & Logistics:** Herndon Fortnightly Library (Extended Hours Meeting Room) 768 Center St, Herndon, VA 20170 * **Parking:** We'll meet at the library, located just behind the Herndon Municipal Center. There is plenty of free public parking available around the municipal center. * **Metro & Bus:** Take the Silver Line to Herndon Metro Station, then connect via Fairfax Connector Route 921 or 950 to Historic Downtown Herndon. * **Driving (via VA-267/Dulles Toll Rd):** Take Exit 10 North (Centreville Rd, which becomes Elden St). Turn left onto Station St or Lynn St. * **Driving (via VA-286/Fairfax Co Pkwy):** Take the Elden St West exit. Turn right onto Lynn St. Looking forward to seeing everyone again and getting back to building!

Most AI meetups end up as just networking. **We’re different.** At **AI Tool Explorers Night \| Connect & Make New Friends**, you’ll: ✨ Walk away with a *real learning nugget* (a tool, workflow, or strategy you can use immediately) ✨ Connect with people who share your curiosity for AI, productivity, and automation ✨ Enjoy a fun, casual setting where new ideas and friendships spark naturally 👉 **Our promise:** every session delivers structure, substance, and takeaways you can use when you get home. ### 📅 Event Flow * **6:00–6:15 PM** → Arrivals & intros * **6:15–6:45 PM** → AI demo / learning nugget * **6:45–7:00 PM** → Q&A and group discussion * **7:00–8:00 PM** → Networking & contact sharing ⚡ Please hold networking until after the presentation so we can all learn together. Plenty of time at the end to connect and exchange cards! **Let's explore AI Tools that actually *work* in our day-to-day life!** *** #ChatGPT #Claude #Grok #Gemini #Perplexity #DeepSeek #NotebookLM #Cursor #GitHubCopilot #Replit #Windsurf #v0dev #Lovable #Zapier #Makecom #n8n #Descript #OpusClip #Synthesia #Runway #Sora #Kling #Veo #PikaLabs #LTXStudio #AdobeFirefly #Vidu #Hailuo #LumaDreamMachine #Wisecut #Elaiio #Capsule #Filmora #Gling #Magisto #AdobePremierePro #ElevenLabs #Suno #Udio #Soundraw #Riffusion #Mubert #BeatovenAI #AIVA #Loudly #SplashPro #Soundful #MagentaStudio #WavTool #MakeBestMusic #BandLabSongStarter #TadAI #EcrettMusic #Midjourney #DALLE3 #CanvaMagicStudio #NotionAI #Gamma #Fathom #FirefliesAI #MLX