Open Jams

\# This meetup is around a third\-party organizer\, Focus Filmtheater\. You can either purchase your ticket online or right before the session\. **Seats are numbered**. # **Title**: Mama’ku **Language**: Dutch **Subtitles**: English **Length**: 75 min **Director**: Sven Peetoom, Aldo Agaatsz **More info**: https://www.focusarnhem.nl/agenda/english-subs-mamaku/ **Ticket link**: https://www.focusarnhem.nl/tickets/146153/ **Synopsis:** The new documentary by Sven Peetoom (*Tussen Wal en Schip – Geruisloos Indisch)*. An intimate film about choreographer and dancer Cheroney Pelupessy, who makes the journey to Indonesia for the first time together with her mother in search of a hidden family history. **How it works**: I will be at Focus around 18:30, where we can meet before the movie starts. You can message me to find us. Screening starts at 19:00. After the movie, we can have a drink together. Hope to see you soon!

Spots are limited: [https://tickets.voxxeddays.com/event/workshop-victor-rentea](https://tickets.voxxeddays.com/event/workshop-victor-rentea) **Build faster, smarter software with AI.** Join an exclusive, fully catered workshop with Victor Rentea on Agentic Engineering in a small, focused group of engineers. **Upgrade your development workflow to 2026.** A hands-on day on AI Coding Agents: prompt & context engineering, multi-agent orchestration, spec-driven development, and self-improving skills. Learn how engineers reach 2x–10x productivity and what it takes to get there. **For:** all engineers (backend, frontend, QA, data, ops) **Bring:** laptop with Claude Code + subscription (Pro is enough) **The agenda of the day** **Introduction** * LLM Fundamentals: Predictions, Tokens, Context Window, Compaction, System Prompt, Model vs Agent Harness * AI Pitfalls: Sycophancy, Hallucinations, Attention Dilution, Knowledge Cutoff, Premature Fixation * MCP Tools – best-of **Context Engineering** * Evolving a Token-Efficient Project Memory * AI Context Sharing across repos, teams, and company * Skills and Custom Agents that self-improve * Token-Efficiency Tricks: context hygiene, DRY, grep-logs antipattern **Prompt Engineering & Orchestration** * Prompt Engineering – does and dont’s * Brainstorm, plan & generate a non-trivial change with AI * Multi-Agent Orchestration Patterns: handover, reviewer, orchestrator, advisor,… **AI Guardrails & Security** * Functional Guardrails with State-of-the-art Acceptance Tests * ⁠Code Quality Guardrails AI cannot circumvent * ⁠Architecture Guardrails & Exact Summarisation * APIs, C4 Model, sequence diagrams * AI Supply-Chain Attacks Attacks and Agent Isolation Techniques **Date:** Wednesday, July 1st (09:00 - 17:00) **Location**: Utrecht (venue TBA) **Price**: € 395,- (incl. lunch & drinks) Spots are limited: [https://tickets.voxxeddays.com/event/workshop-victor-rentea](https://tickets.voxxeddays.com/event/workshop-victor-rentea)

Hi all! 🙂 On Wednesdays we welcome you to practice languages! If you want to practice a specific (uncommon) language, please send us a message so we can find some conversation partners for you on our mailing list! We hope to see you in Café Marktzicht! In the last year we had tables for the following languages: * Dutch * English * French * Italian * Spanish * Turkish\* * German\* * Portuguese\* * Danish\* * Norwegian\* * Russian\* * Arabic\* * Chinese\*\* * Japanese\*\* * Indonesian\*\* * * Most likely, but not every week present. \*\* - Rather rare ;-) If your language is not in this list, please let us know! We have a large database of Language Cafe visitors speaking 56 different languages! We might be able to connect you with a person that does speak the language you want to practice. In case you are not in our database yet, please use this form: http://goo.gl/forms/oSCn9Dn8m8

**When:** Wednesday\, July 1st \| 🕒 Doors open at 19:00\, battle starts at 20:00 **Where:** De Ping Pong Club, Utrecht **Damage:** €4,07 (Buy your tickets in advance as spaces are limited! Secure your spot directly with the venue [here](https://shop.weeztix.com/37dc63d6-519c-11f0-a9cb-7e126431635e/events?shop_code=5rn36dck)!) **The Vibe:** I checked out De Ping Pong Club last week—it is an awesome location! They even have board games if you need a break from the action. I played there recently outside of a tournament, and let me tell you about the "athletic" standard: if you can hold two beers at the same time, you are officially qualified. This is not the Olympics, this is [around the table](https://depingpongclub.nl/agenda/). Leave your sports watch at home; this is a purely social event where your actual speaking time will easily outlast your playtime. **Pro Tip:** There are bonus points for costumes and alternative, non-paddle equipment. Fry-pans, textbooks, or flip-flops? Bring it. **Essential Training Routine:** If you actually want to take this seriously and lift the trophy, you *must* complete this strict two-step preparation: 1. Watch the [Balls of Fury Trailer](https://www.youtube.com/watch?v=HXR_NLDMUk8&t) to master the illegal underground table tennis mindset. 2. Blast [Armin van Buuren's Ping Pong](https://www.youtube.com/watch?v=Z8V5GfFeUDs) on repeat to get your hand-eye coordination synced to 138 BPM. **P.S.** Who is willing to play in my team **"ExBats"**? (Yes, a terrible pun merging "Expats" with *bat*, the Dutch word for racket). Drop a comment below if you're in!

Welcome to our Volleyball community !! 🏐🎉 We are a community of volleyball enthusiasts who want to enjoy the game, improve their skills, and meet new friends. Our open play sessions offer a friendly, social environment where everyone can get some practice and have fun. Our sessions consist of mixed level play, however intermediate volleyball knowledge is mandatory. We try to have a balanced levels per team to ensure smooth play. If you aren’t familiar with basic volleyball rules and have no experience, sorry to say, but it's not your group. ❗❗ Meetup recently pops up their subscription option after you click on RSVP— you can dismiss it by clicking the "X" in the top left corner. ✅ RSVP & Attendance Attendance is limited to 14 people. If the RSVP list is full, join the waiting list—cancellations happen frequently. If the event appears full on the Meetup app, try using a web browser instead. ❌Cancellations & Refunds cancellation prior to 24h before the event, can be refunded. Can’t make it? Update your RSVP to "Not Going" ASAP so someone else can take your spot. 👟 What to Bring For your own safety and comfort, wear sport shoes and clothing (no street shoes—must change into sport shoes) and bring deodorant for ours. 💸 Payment & Contribution (€6.00 per person) Payment must be made in advance via Tikkie. Please only pay once you are added to the going list. In case you do not meet the payment deadline, you may be moved to the not going list. Looking forward to seeing you on the court! 🏐🔥 Let’s play, have fun, and make new friends!

Welcome to our Volleyball community !! 🏐🎉 We are a community of volleyball enthusiasts who want to enjoy the game, improve their skills, and meet new friends. Our open play sessions offer a friendly, social environment where everyone can get some practice and have fun. Our sessions consist of mixed level play, however intermediate volleyball knowledge is mandatory. We try to have a balanced levels per team to ensure smooth play. If you aren’t familiar with basic volleyball rules and have no experience, sorry to say, but it's not your group. ❗❗ Meetup recently pops up their subscription option after you click on RSVP— you can dismiss it by clicking the "X" in the top left corner. ✅ RSVP & Attendance Attendance is limited to 14 people. If the RSVP list is full, join the waiting list—cancellations happen frequently. If the event appears full on the Meetup app, try using a web browser instead. ❌Cancellations & Refunds cancellation prior to 24h before the event, can be refunded. Can’t make it? Update your RSVP to "Not Going" ASAP so someone else can take your spot. 👟 What to Bring For your own safety and comfort, wear sport shoes and clothing (no street shoes—must change into sport shoes) and bring deodorant for ours. 💸 Payment & Contribution (€6.00 per person) Payment must be made in advance via Tikkie (payment link will be send to you). Looking forward to seeing you on the court! 🏐🔥 Let’s play, have fun, and make new friends!

Are you an **expat** in **Utrecht** and do you want to **learn how to swim?** Look no further! Dive into **personalized swimming lessons** with **Your Personal Swim Coach**. Whether you’re a beginner looking to learn the basics or an advanced swimmer seeking to refine your technique, our expert coaches offer **tailored sessions** that fit your needs. **De Kwakel** is a great pool close to the city center, has free parking, and is easy to reach by bus. It's an **amazing learning environment!** **Don't wait any longer:** **[Sign up for a Try Out Lesson!](https://www.your-personal-swim-coach.nl/product/try-out-adult-swimming-lesson/)** Want to learn more first? Go to our **[website](https://www.your-personal-swim-coach.nl/)** or **[schedule a call!](https://calendly.com/ypsc/new-meeting)**

**Secrets management met OpenBao** Ben je geïnteresseerd in veilige opslag van secrets, privacy-first infrastructuur en open source security tools? Kom dan naar onze OpenBao workshop! Tijdens deze hands-on sessie duiken we in OpenBao, een open source secrets management oplossing. We laten zien je de verschillende Secret Backends van OpenBao configureerd en je door middel van policies kan bepalen wie (of wat) bij welk endpoint mag. Wat kun je verwachten: · Introductie tot OpenBao en de use cases · Installatie en basisconfiguratie · Praktische oefeningen met secrets en policies · Tips voor gebruik in je eigen projecten · Bonus: Configuratie van de OpenBao server met OpenTofu Neem je laptop mee als je mee wilt doen met de hands-on onderdelen (Linux of MacOS)

Join us for a fun session of improv theatre in English! A great opportunity to meet new people in Utrecht and learn something new with [Improv Utrecht](https://improvutrecht.nl). Everyone can partcipate, you don't need any experience in theatre nor fluency in English. In this session you will: * Meet fellow international and local players. * Learn the basics of improvisation, a 21st-century skill that is useful in many aspects of life. * Get out of your head. * Enjoy failing. * Play funny and moving theatre games. * Laugh a lot, while surprising yourself and others. Doors open: 19:50-20:00, come in with the others ([SIDE entrance, at the Troelstralaan](https://maps.app.goo.gl/ntLDUqbkDxMHjp7B7)). After 20:01 the door may be closed, but you may find a participant who knows the door code. Workshop: 20:00-22:00 Every Friday except in school holidays Afterwards we have drinks at [O'Leary's](https://maps.app.goo.gl/gL878K1MZf8v5fpm7) pub together ### How to sign up Full details about how to sign up and any other questions you may have can be [found on our website](https://www.improvutrecht.nl/drop-in-workshops/). An RSVP in this Meetup event is not enough! We track attendance by counting the attendants in GrasshopperSignup. If you flag yourself as attending and can no longer make it, please delete your x in the sheet so that someone else can take your spot. If you leave your contact details at the Signup form we will contact you if there is a problem with a drop-in you are scheduled to attend. We also have a WhatsApp group with a variety of members from across Utrecht where we share events and updates. You can find our courses and shows on [our website](https://www.improvutrecht.nl). Participation is pay-what-you-can, but we suggest a donation of €10-20 by cash or Tikkie to help cover costs (location, travel) and show your appreciation for our professional trainers who dedicate their Friday to promoting improv.

'THE SYMPATHIZER' by Viet Thanh Nguyen 'The winner of the 2016 Pulitzer Prize for Fiction, as well as seven other awards, The Sympathizer is the breakthrough novel of the year. With the pace and suspense of a thriller and prose that has been compared to Graham Greene and Saul Bellow, The Sympathizer is a sweeping epic of love and betrayal. The narrator, a communist double agent, is a man of two minds, a half-French, half-Vietnamese army captain who arranges to come to America after the Fall of Saigon, and while building a new life with other Vietnamese refugees in Los Angeles is secretly reporting back to his communist superiors in Vietnam. The Sympathizer is a blistering exploration of identity and America, a gripping espionage novel, and a powerful story of love and friendship.' ***Please read the book and join us for a lively discussion (in English) about the contents during our afternoon book club meeting.*** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **PLEASE NOTE:** This is an IN-PERSON event in Amersfoort, The Netherlands. Please cancel your attendance in advance if you are unable to join, so that those on the waitlist can participate. Looking forward to seeing you all IN REAL LIFE then! Best regards, Sandra

Are you ready to blast past the limitations of a jam session? Are you ready to extract every drop of musical creativity? This workshop is for those who are ready to risk putting everything that goes in their brains out there in musical form! After this workshop, you're never going to look at music the same way! More than a jam, the Jam With Humans workshop is a workshop on how to jam. Your teacher Daniel Matias Ferrer will guide you through exercises on musical improvisation and creativity. In a typical workshop, we start by getting to know each other and why we came to the workshop. Then, we warm-up by allowing ourselves to be silly and childishly curious, usually via theatrical exercises. At this point, we replace the verbal component of these exercises by improvised music. We proceed with exercising our skills in coming up with musical ideas, transferring them and listening to the ideas of others, and finish the session with one big jam. **The Jam With Humans Workshops are free to join. A (voluntary) contribution will be requested at the end of the session for helping with production costs (suggested €20).** **🤔FAQ🤔** **Should I bring an instrument?** If you can, please bring your instrument. The Q-Factory studio will be equipped with a bass and two guitar amplifiers, a drum set (no cymbals) and a PA system with many vocal microphones. It's also possible to rent cymbals, congas, a digital piano, guitars and basses from Q-Factory for very reasonable fees. **I’m a beginner, can I join?** Yes! The workshop is for everyone: we’ll be able to use whatever sounds you can produce plus all your knowledge of music (both from listening and playing) to explore how they can be used creatively in an improvisational setting. The workshop is also a safe space, so don’t be shy in taking risks musically, we have your back! **I’m a professional, should I join?** Absolutely! Given that the workshop is about improvisation and creativity, chances are you’ll be faced with exercises that allow you to explore your instrument in ways you never thought about before. Plus, you’ll be practicing mechanisms of being able to improvise with anyone else, in different instruments and with different musical sensibilities. **How often should I participate?** As often as you want! The workshops are weekly (or fortnightly during summer time) and their syllabus is circular. All workshops are different and it’s recommended that you come to at least three before you make up your mind about them. Otherwise, show up as often as you want: every week, every two weeks, many workshops in a row and then none for a few months… There is only one catch: those who come often will be invited eventually to join The Jam With Humans Orchestra in a separate rehearsal and join our Jam With Humans live shows. Also, those who come really often (regularly for over a year), will be invited to teach workshops themselves, as that’s a fundamental part of the Jam With Humans pedagogical ethos. **Does everyone have to participate, or can I just watch?** Everyone has to participate! If you’re in the room, you’ll have to participate. No observers! Again: we get your back, no worries. Hold our hand and be ready to dive into the world of improvised music, we’ll be there to help you through the journey. **What style do we play?** Whatever you’d like to play. Musical styles, musical genres, those are words which tend to not be imposed to the workshop participants. The goal of the workshop is to harness whatever is your musical language and sensibility to better cooperate with others in an improvisational context. **Is there anything I should do to prepare?** Actively listen to a lot of music. Sit down and think of what went through the musicians/composers heads that lead to what you are listening to. If you’re looking for inspiration, start with one of the three big influences on the Jam With Humans musical improvisation style: John Zorn, Sun Ra, Frank Zappa.

I'm excited to host the 25st edition of *Strangers to Friends*! Every event so far has been warm, fun and full of great connections. So we’re doing it again! Curious about our previous events? Check out our photo albums (only visible on the laptop version of Meetup). **What to expect** * A safe, relaxed environment to meet both locals and expats, whether you want to meet new people, experience an international atmosphere or talk about business, it’s all possible. * Start the evening with a few rounds of conversation cards: pair up with someone you don’t know, answer meaningful questions and rotate every 10 minutes. Within just one hour, you’ll get to know several people really well and enjoy meaningful conversations. * Everyone comes on their own, so it’s easy to connect. **Practical details** * Doors open at 20:00, after 30 minutes we start with conversation cards * Venue: Boekencafé Libertas, Klarendalseweg 477-1, Arnhem * 20 min walk from Arnhem Central * 7 min walk from Arnhem Velperpoort * You’ll receive 1 drink token for (beer/wine/soft drinks) and snacks all night! * Find us on the right side of the café at the bar, by the window and garden Bring a smile and join us for an evening where friendships grow, business ideas spark and real-life connections happen. Back to basics, away from screens, meeting face-to-face. Warm regards, Julia

Iedereen is welkom op onze open Freedom Friday Bitcoin Turnhout Meetup @ het super gezellige café Sint Pieter - Grote Markt 60, 2300 Turnhout Geen presentaties. Geen workshops. Gewoon 1 onderwerp: bitcoin. **Connect with Like-Minded Minds** Engage with the Bitcoin community and mingle with fellow enthusiasts. This meetup is your chance to discuss the future, share ideas, and network with pioneers in the decentralized money world. 🏢 **Central Location**: café Sint Pieter ligt perfect centraal, een ruim cafe op de grote markt van Turnhout. Mark your calendars and spread the word!

grassroots meet up for women / mothers / in Amsterdam who want to bring their children into their fun, spiritual and festival-going lives! this looks like a very family friendly festival, 30 minutes drive from Amsterdam and I do believe it is accessible by public transport. please note: I am not affiliated with this event, just a new mom / family who are finding our way back to events and spaces we loved pre-baby, now ready to enjoy them with our toddler and connecting with like-minded people along the way :) https://wonderfeel.nl

Interested? Contact Preston Moore k.preston.moore@gmail.com 614-300-5989 ———————————— Engaging in men’s work is the new way to forge friendships while being open-minded to personal growth. Many men experience healthier relationships, personally and professionally, by engaging in this work. Open Men’s Group is a container for men to share vulnerably without receiving judgment or feedback. We believe that emotionally mature, powerful, compassionate, and purpose-driven men will help heal some of society’s deepest wounds. We support the powerful brilliance of men and we are willing to look at, and take full responsibility for, the pain we are also capable of creating – and suffering. We care deeply about men, our families, communities, and the planet. Visit ManKind Project USA to discover more. https://mkpusa.org/

BOOM! At land grant featuring the 3 ton toad. Catch the best view of Ohio’s biggest fireworks show – without the downtown madness. Land grant is 1/2 a mile from red white and boom! BOOM! At Land grant is back! The 3 ton toad will go live on the beer garden stage beginning at 7 PM. They’ll keep the music going right up until the fireworks light up the sky. Come early, grab a craft beer, hit up the food trucks, and settle in for a summer night of music, drinks, and an unbeatable fireworks finale.

The topic for July is "Shoes" Speak Easy: true stories, told live. The idea is simple: an audience, an open microphone, and great stories. Hilarious, gripping, poignant- it's up to you. Audiences are invited to come to listen or come to tell as folks from all corners of Columbus offer their stories live on stage! Held at Wild Goose Creative's warm, intimate space, this night of tales occurs on the 3rd Thursday of every month. Doors open at 6:30 pm, show starts at 7:00 pm. Please arrive early if you want to tell, as we generally only have room for a limited number of tellers, and the sign-up sheet has a tendency to fill up fast. Formed around the idea that people need stories--they're what hold and draw us together--SpeakEasy celebrates the strangeness and commonness of being human. And in a world of smartphones, Facebook, Twitter, and more . . . it gives people a real, breathing, in-person way to connect. The night is geared for true stories of all kinds, taking the best tales told around kitchen tables, in darkened pubs, on the street corner, and at late-night parties and giving them an audience. Speak Easy is also a great outlet for performers, writers, and artists looking to share their favorite stories and perfect their skills. We strongly encourage tellers to please tell the story rather than read it so we keep within the spirit of good storytelling and stay engaged with the audience. All are welcome. Hang around after the show for a drink and build community!