Digital Currency

Hi everyone! Join us for RubyZG May meetup. We have 2 great talks lined up: Vlado will show us how to go beyond the default Rails 8 PWA setup and build apps that work offline, and Bruno will talk about using more database features in Rails with Scenic and FX. This is also our first meetup at a new location: [Pogon, in Mislavova street](https://www.pogon.hr/rezerviraj-prostor/mislavova/opis/). After the talks, we're going for drinks nearby. There are a couple of interesting options around, including Monocycle, Boogie Lab and Branimir Mall, so we can vote on the favorite after the formal part of the meetup. See you at Pogon! \*\*\* **Beyond manifest and service-worker: Rails PWAs in Practice** by [Vlado Cingel](https://www.linkedin.com/in/vladocingel/) Rails 8 ships with PWA support out of the box, but the built-in /manifest.json and /service-worker.js routes are just the starting line. In this talk we'll go from that default to a fully offline app: caching pages, storing structured data and building forms that work without a network. **Database Features, the Rails Way** by [Bruno Sutic](https://www.linkedin.com/in/brunosutic/) Rails makes database work simple, but sometimes the right solution lives closer to the database. In this talk we'll look at Scenic and FX, two gems that help us use views, functions and triggers in PostgreSQL while keeping the workflow familiar to Rails developers.

**Pridružite nam se na Engineering Management Meetupu #16** (a tražimo i još 1 sponzora tako da osiguramo snimku meetupa 🔎) Pozivamo sve **Senior Software Engineere, Tech Leadove, Team Leadove, Engineering Managere, Direktore, VPeve, CTOe**, kao ili sve one koji tome teže u budućoj karijeri, da nam se pridruže na idućem meetupu! 📆 Kada? **Utorak, 26. svibnja 2026.** 🌍 Gdje? Sveučilište Algebra Bernays, Gradišćanska 24, Zagreb (Spark event space) ✅ Mjesta su ograničena, pa rezervirajte svoje na vrijeme! Ispunite[ prijavni obrazac!](https://algebra.hr/mba/dogadanja/engineering-management-meetup/#prijava) 🙌🏻 📖 Program: 17.30 - 18.00 sati Registracija 18.00-20.00 sati: Program Panel diskusija **“AI u engineering timovima: upravljaju li voditelji promjenama ili hvataju promjene?”** Panelisti: * **Mario Žderić**, CTO, DECODE * **Nikola Buhiniček**, Engineering Manager, Productive * **Denis Buketa**, Engineering Manager, Solflare Moderator: **Filip Šišić**, Engineering Manager, Google Predavanje: “**Leadership je emocionalni proces. Zato vam AI tu ne može pomoći (i neće još dugo)**” Predavač: Ivica Vrančić, Management Development Consultant, Verantius Više [o programu](https://algebra.hr/mba/dogadanja/engineering-management-meetup/) \*\*\*\*\*\* Nakon službenog dijela programa, slijedi networking uz 🍕powered by **DECODE** i 🍻 powered by **Sofascore,** a podizanje šećera će nam osigurati **VuMedi.** Hvala [Poslovna škola Sveučilišta Algebra Bernays ](https://algebra.hr/mba/)našem glavnom partneru projekta, na prostoru i velikoj pomoći u organizaciji ❤️. \*\*\*\*\*\* **Upoznajte naše partnere i sponzore:** **[Poslovna škola Sveučilišta Algebra Bernays](https://algebra.hr/mba/)**: Za pokretanje rasta i razvoja tvrtki danas su neophodni poslovni lideri koji razumiju brzu transformaciju poslovanja i stvaraju nove vrijednosti u digitalnom okruženju. Vođenje ljudi i korištenje digitalnih tehnologija nadopunjuju se i postaju ključni element suvremenog poslovanja. Posvećeni smo razvoju e-lidera koji potiču uspješnu poslovnu transformaciju i inovacije u svojim sredinama, koristeći se naprednim informacijskim i komunikacijskim tehnologijama. Njihove vještine e-vođenja bitne su jer potiču gospodarski rast i stvaraju nova radna mjesta, zahvaljujući punom korištenju novih, inovativnih tehnologija. **[DECODE](https://decode.agency/open-positions/)** zagrebačka agencija za razvoj softvera. Od 2011. rade na kompleksnim mobilnim i web projektima za klijente od startupa do Fortune 500 kompanija. Trenutno broje oko 80 ljudi, a svaki projekt dobiva dedicirani tim s punim fokusom. **[Sofascore](https://corporate.sofascore.com/careers)** je tvrtka za sportske podatke sa sjedištem u Zagrebu. Aplikaciju za praćenje rezultata mjesečno koristi više od 25 milijuna korisnika koji pregledavaju više od 20 različitih sportova. **[VuMedi](https://www.vumedi.com/)**[ ](https://www.vumedi.com/)je najveća svjetska videoedukacijska platforma namijenjena liječnicima gdje više od pola milijuna stručnjaka koriste VuMedi za edukaciju, istraživanje i stručne rasprave, a znanje koje stječu svakodnevno primjenjuju u radu s pacijentima tako poboljšavajući živote ljudi diljem svijeta.

Hey everyone! Join us for our next meetup on **May 27th** starting at **18:00** at a new venue - **Pogon Mislavova** (Kneza Mislava 18). We'll have an interesting talk by our own Vitaliy, followed by our usual networking. Afterwards, we'll either stay at Pogon or head to a nearby bar (Canopy Bar sounds like a good option). \*\*\* Electron in Production: Building Efficient Desktop Apps with Native Modules by **Vitaliy Yunikov** VS Code, Slack, Figma, Linear, Notion — a lot of the desktop apps web developers use daily - are all Electron. Electron also has a reputation for being slow and bloated. Both are true: a well-built Electron app feels native, a default one doesn't. This talk covers what production Electron teams know that the docs don't tell you. We'll go through the process model and what each process costs, the security defaults you need from day one, the JS-side performance moves that buy back the memory Chromium charges, and what happens when pure JavaScript stops being fast enough - going native with N-API, including the data, threading, and memory contracts that surprise even experienced JS developers. Hope to see you there! Marcela

Pozdrav Gopheri, Novi meetup! Tema ovog druženja je: Gdje idu moji paketi? Vodič kroz Go projektne strukture. Lokacija je: Dvorana C na Tehničko veleučilište u Zagrebu Borongajska cesta 83E, 10000, Zagreb, Croatia https://maps.app.goo.gl/1jKZDsiqMbhZc7136 Besplatni parking je moguć ispred zgrade Veleučilišta. Kao i uvijek, pozivamo vas da nam se javite s temom za predavanje. Dobrodošle su i teme za manje iskusne sudionike. Također vas pozivamo da nam se pridružite na Gophers slack kanalu: #croatia https://invite.slack.golangbridge.org/ \-\-\- Hello Gophers New meetup! The topic of this meeting is: Where do my packages go? A guide to Go project structures. The location is: Hall C at Zagreb University of Applied Sciences (Tehničko veleučilište u Zagrebu – TVZ) Borongajska cesta 83E, 10000, Zagreb, Croatia https://maps.app.goo.gl/1jKZDsiqMbhZc7136 Free parking is available in front of the University building. As always, we invite you to contact us with a topic for a talk. Topics for less experienced participants are also welcome. We also invite you to join us on the Gophers slack channel: #croatia https://invite.slack.golangbridge.org/

\*\*\*\* Practice Foreign Languages with Native Speakers \*\*\*\*\* === \*\*\*\*\*\*\*\*\*\*\*\* at the Language Conversation Table \*\*\*\*\*\*\*\*\*\*\* === \*\*\*\* Practice Foreign Languages with Native Speakers \*\*\*\*\* === \*\*\*\*\*\*\*\*\*\*\*\* at the Language Conversation Table \*\*\*\*\*\*\*\*\*\*\* === The caffe Cukeraj provides us with a back-room reserved just for this event, where we get to practice Croatian and other languages three hours for free.The entrance is free, but to be sure that Domenico will continue to host us, please have at least one drink when you're coming.at Cukeraj, Petrinjska 61See you soon!P.S. IF U HAVE ANY PROBLEMS FINDING THE PLACE BE FREE TO CONTACT THE ORGANIZER: +385953913346 \*\*\*\*\* Vježbajte Strane Jezike sa Izvornim Govornicima \*\*\*\*\* === Za organizaciju događaja se ne mora nista platiti. Radi korištenja prostora u kafiću (koji se nalazi u dvorišnoj zgradi) , bilo bi poželjno kad bi svatko naručio barem jedno piće. Nedjelja 18:00 - 21:00 sati Cukeraj Petrinjska 61

Marketingaši se često susreću s paradoksom da imaju više kanala i alata nego ikad, a sve je teže postići opipljive rezultate. Ako vam ovo zvuči poznato, **[događaj](https://go.leverup.io/leverup_braze_zagreb_2026?utm_source=Meetup&utm_medium=events&utm_campaign=Braze_events_2026)** koji **[𝗟𝗲𝘃𝗲𝗿𝗨𝗣](https://leverup.io/braze/?utm_source=Meetup&utm_medium=events&utm_campaign=Braze_events_2026)** organizira s **[𝗕𝗿𝗮𝘇𝗲𝗼𝗺](https://www.braze.com/?utm_source=Meetup&utm_medium=events&utm_campaign=Braze_events_2026)** je baš za vas. ✅ LeverUP, zagrebačka konzultantska tvrtka specijalizirana za customer engagement poziva vas na ekskluzivni događaj ***[Više kanala, više alata… a manje rezultata?](https://go.leverup.io/leverup_braze_zagreb_2026?utm_source=Meetup&utm_medium=events&utm_campaign=Braze_events_2026)*** Pokazat ćemo vam što Braze, vodeća svjetska platforma za customer engagement, može učiniti za vaše poslovanje i kako spaja podatke, kanale i personalizaciju na jednom mjestu i koristi ih u stvarnom vremenu. ⌛ **𝗞𝗮𝗱𝗮?** 27\. svibnja 2026\.\, od 10:00 do 13:00 sati 📍 **𝗚𝗱𝗷𝗲?** Hotel Zonar, Trg Krešimira Ćosića 9, Zagreb **Što vas sve čeka:** ✅ koliko zapravo znate o svojim kupcima? ✅ po čemu je Braze drugačiji od drugih platformi - višekanalna komunikacija, personalizacija, metrike ✅ interaktivni live demo - kad Braze Agent radi umjesto vas ✅ konkretni odgovori, a ne teorija - kako su brendovi povećali konverzije i lojalnost kupaca pomoću Brazea ✅ networking i razgovor s ambicioznim marketingašima u opuštenoj atmosferi Hotela Zonar ✅ piće i hrana Dress code - business casual Broj mjesta je ograničen. **[➡️ 𝗣𝗿𝗶𝗷𝗮𝘃𝗶𝘁𝗲 𝘀𝗲 𝗽𝘂𝘁𝗲𝗺 𝗹𝗶𝗻𝗸𝗮.](https://go.leverup.io/leverup_braze_zagreb_2026?utm_source=Meetup&utm_medium=events&utm_campaign=Braze_events_2026)** Veselimo se vašem dolasku. 🙂

⚽️ Football game in Zagreb — Saturday, 30th of May We’re organizing a pickup football game in Zagreb on Saturday, 30th of May from 16:00 to 17:00. If you’re interested, just join/apply if you can make it. 🌍 International vibe — everyone is welcome 🤝 Friendly but competitive game 💪 Good energy and respect on the pitch 📍 Location details to be shared.

Join us for a casual drinkup at Dribbling Food&Caffe. Come for drinks, stay for conversations (about programming). Everyone is welcome, don't be shy! Hope to see you there!

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!

We may pick a specific topic and post in advance or may discuss current events and various ad hoc topics . We would love to spend time hanging out and getting to know one another. Atheist, agnostics, other non-theists, and atheist-friendly people are welcome to join us. Note: COUNT operates a Facebook page at www.facebook.com/groups/COUNT.discussions (http://www.facebook.com/groups/COUNT.discussions/) to promote discussions among members and visitors.

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

Bienvenue! We host a twice-a-month French conversation club at La Chatelaine on Lane. All levels welcome! Whether you're new to French or running for Président de la République you are welcome here! We often read plays together, play vocabulary games, and generally enjoy the delicious food available at La Chatelaine! We will be at the long table in the back of the restaurant. A bientôt!

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)

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

[https://www.originsgamefair.com/](https://www.originsgamefair.com/) [https://tabletop.events/conventions/origins-game-fair-2026](https://tabletop.events/conventions/origins-game-fair-2026) ### **Discover the Heart of Tabletop Gaming at Origins Game Fair** Celebrate over 50 years of gaming, community, and connection at Origins Game Fair 2026, June 17 to 21 in Columbus, Ohio! Since its inception in 1975, Origins has been the premier gathering for gamers, creators, and fans, offering something for everyone - from seasoned veterans to first-time attendees. Explore exciting events like board and card games, miniatures, roleplaying adventures, LARPs, collectible card games, cosplays, and more. Compete in game tournaments, test your skills in our puzzle competition, and immerse yourself in the Origins Film Festival. Plus, don't miss the massive exhibit hall, filled with the latest games, accessories, and collectibles from top publishers and indie creators alike. Whether you're here to play, learn, shop, or connect, Origins Game Fair offers a welcoming and inclusive atmosphere for all. Be a part of a community that has fostered friendships, sparked creativity, and built memories for five decades. Get your tickets today and experience the ultimate tabletop gaming event! ### **Important Dates** **Volunteer Applications Open:** November 28, 2025 - May 15, 2026 **Event Submission Open:** November 14th, 2025 - February 2, 2026 **Volunteer Shift Selection Opens:** February 3, 2025 **Late Event Submission Opens:** February 3, 2026 *There is no guarantee that any events submitted after February 2 will be reviewed or approved.* **Late Event Submission Closes:** April 5, 2026 **Perk Request Deadline:** April 10, 2026 **Layout Request Deadline:** April 15, 2026 **Event Registration Opens:** April 25, 2026 (1 PM EST) ### **Registration Hours:** **Self Serve - Scan and Go** Wednesday - 8am - Midnight Thursday - 7am - Midnight Friday - 7am - Midnight Saturday - 7am - Midnight Sunday - 7am - 2pm **Full Service / Materials Pickup** Wednesday - 8am - 9pm Thursday - 8am - 8pm Friday - 8am - 8pm Saturday - 8am - 6pm Sunday - 8am - 4pm **In 2026 you can go to Scan and Go for tickets purchased after you already have your badge just by scanning the barcode on your badge! Less waiting in line!** ### **Exhibit Hall Hours:** Wednesday - Closed Thursday - 9am - 10am - Premier Badge Holders Thursday - 10am - 6pm - All Attendees Friday - 10am - 6pm - All Attendees Saturday - 10am - 6pm - All Attendees Sunday - 10am - 4pm - All Attendees ### **Gaming Hall:** Wednesday - Noon - 1am Thursday - 8am - 1am Friday - 8am - 1am Saturday - 8am - 1am Sunday - 8am - 4pm ### **Important Information:** **Refunds:** There will be a 10% service fee for ALL Refunds; Badges and Tickets. **Badge Refund Deadline:**. April 15, 2026 No refunds on badges will be processed after this date. **Event Tickets:** \- will be refunded up to 24 hours before the event starts\. All event ticket refunds will have a 10% service fee\.