Decentralized Systems & Applications

**About the Speaker** **Simon Ritter** With over a decade of experience as Deputy CTO at Azul Systems, our speaker has helped shape the adoption of Java and JVM technologies across the global developer community. A recognized expert in Java and open source, he is passionate about advancing developer productivity, application performance, and innovation throughout the software ecosystem. **Agenda** **Keeping Your Java Hot by Solving the JVM Startup and Warmup Problem** Java bytecodes and class files deliver on the original vision of “write once, run anywhere”. Using a Just-in-Time (JIT) compiler allows JVM-based applications to compile only the code that’s used frequently and optimise it precisely for how it's used. Using techniques like speculative optimisation can often deliver better performance than static, Ahead-of-Time (AOT) compiled code. However, this flexibility and performance come at a cost. Each time the JVM starts an application, it must perform the same analysis to identify hot spots in the code and compile them. This is referred to as the application warmup time. In this session, we’ll look at several approaches to alleviating or even eliminating this problem. Specifically: · Static compilation of Java code ahead-of-time (AOT). Specifically, the Graal native image approach · Generating a JIT compiler profile of a running, warmed-up application that can be reused when the same application is restarted, eliminating the need for much of the JIT compilation. This will include details of the work of the OpenJDK Project Leyden. · Decoupling the JIT compiler from the JVM for a Cloud environment. Providing a centralised JIT-as-a-Service allows caching of compiled code and offloading the compilation work when new code must be compiled. · Creating a checkpoint of a running application. This includes all application state (heap, stack, etc.) in addition to the JIT-compiled code. Project CRaC will be used as an example. At the end of the session, you’ll be all set to keep your Java hot! **Modern Java Puzzlers** Since JDK 9, Java, as a language, has evolved faster than at any point in its 30-year history. For developers, this is great, as it means we get more new features that make our code more concise and, hopefully, easier to read and understand. All new language features also bring their quirks and possibly unseen consequences. In this fun interactive session, we’ll examine a range of recent language features and pose questions to the audience about how the code works and what it does. We’ll cover many of the new language features from recent releases, including switch expressions, sealed classes and pattern matching. We’ll even look at some curious ways special characters can be used in unexpected ways. The answers will most definitely not always be as you expect!

**Afternoon Express Football at Kovan! ⚡⚽** Unwind with a friendly 5v5 game and shake off the day’s stress. Easygoing vibes, good company, and a great way to recharge your afternoon! There will be an official host will facilitate the game to ensure safety and rotate teams if applicable. Please note: \- Be on time to ensure game starts promptly\. \- Teams will be formed and play will begin\. Normal rules apply\. \- Where there are more than 2 teams\, a series of rotating games lasting 7 minutes will be played. As always, keep games safe and friendly: watch the tackles, avoid sliding, and exhibit great sportsmanship! **\*\*Please note that RSVP on this event doesn't mean you've successfully booked the game. Contact us via WhatsApp +65 88144810 for more details.\*\***

This in-person event is built for developers and cloud engineers who want to design, build, and deploy real-world AI solutions on Azure. Expect a hands-on, implementation-focused experience using Microsoft Foundry and GitHub Copilot with live demos, guided labs, and practical developer workflows. **What to expect:** * Key takeaways and announcements from Microsoft Build 2026 * Deep dive into Azure AI and Generative AI use cases * Live demos with Microsoft Foundry and GitHub Copilot * Hands-on labs to build and test AI-powered features end-to-end * Best practices for building AI-powered applications * Networking with the local AI developer community Whether you're shipping your first AI feature or scaling production systems, this event is designed to give you actionable insights to accelerate your AI journey with Microsoft. Don't forget to register using direct Microsoft reactor Link as below which is mandatory - https://developer.microsoft.com/reactor/events/27204

**\*If interested, please whatsapp** [wa.me/+6588842635](wa.me/+6588842635) **or +65 8884 2635! Sign-ups *are only confirmed after contacting us and joining the WA group! \**** Gunung Berembun Jelebu (1,014m) is an interesting hike with the chance of visiting a WWII plane crash site, while hiking through a dense rainforest with waterfalls and streams, and fallen trees. There are many "Gunung Berembun" but this is the one located in Negiri Sembilan! We will be doing the classic route via Kampung Pantai. It is considered a full day hike, slightly shorter than Ophir. This is usually used as a training hike, and exposure to different elements and exploring a more raw trail, rather than a hike for the view itself. **Who is this for?** * It is most suitable for those who just want an interesting full-day hike out similar to Ophir, but less curated than the usual ones. * It serves as a good training or progressive hike for those who wish to do more hiking. Most do it as general training for hikes. * Wish to experience a more raw rainforest trail with less crowds, and different elements * Wish to do a full-day hike nearby without travelling so far * Wish to see a WWII plane crash site and wreckage * Not for those who are hunting for a beautiful viewpoint at the summit **How tough is it/How fit do I have to be?** Duration: \~5h up, and 4h down. You can u-turn at the summit instead of going to the crash site. Distance: \~7km one way, total of 14km. It is generally tropical forest trail, with some river, rope portions. However, if you have done other Malaysia hikes before like Gunung Datuk/Lambak/Ophir before, the terrain is not that much of a surprise, except it is more raw. With the presence of streams, please do expect leeches! To confirm, do RSVP and send me a whatsapp message! A Whatsapp group will be set up. Do make sure you're in the WA group if you're going. A minimum of **12 pax** is needed for this trip to go ahead. **Estimated Itinerary: (Saturday)** \~12.00 am : Meet @ Marsiling MRT 4.30 am : Breakfast 6:30 am : Reach Kampung Pantai Baru Trailhead. Start hike. Walk/4WD in for 2km. 10.00 am : Gunung Berembun Summit 11.30 am : WWII Crash Site 12:30 pm : Gunung Berembun Summit (lunch) 4:00 pm : Descend back to trailhead. Wash up and exit. 5.00 pm – 11.00pm : Dinner and head back to Singapore. ***Itinerary is subject to changes based on conditions and group speed and trek leader's discretion*** **\*You may leave your non-hiking items on the vehicle\*** Price: **$140** Price includes: 2-ways Transport All associated Park Permits/ Fees LMT Trek Leader LMT Info-Kit Price excludes: All Personal expenses/Meals Personal Travel Insurance Visa Application (if any) Other personal expenses This event is organized by LITTLE MONSTERS TRAVEL PTE LTD Travel Agent Licence No: 03117 Contact : +65 88842635 Email: info@littlemonsterstravel.net

**[CONFIRMED TRIP]** **⛰️ BUKIT MOR 摩山 227m LEISURE HIKE + MUAR 麻坡 RELAX** **📅 Date: 13 June 2026 (Sat)** **💰 EVENT COST** **\* $130 / pax** **\* 2 TO GO is $120 /pax** **(Must Be In Single Receipt)** **🌄 Join us for a relaxing hike + delicious Muar food adventure!** **📲 INTERESTED?** **WhatsApp 94884478 Wilfred or RSVP via Meetup:** [https://www.meetup.com/lets-go-travelling-hiking/events/314317944/](https://www.meetup.com/lets-go-travelling-hiking/events/314317944/) **⛰️HIKE DETAILS:** **Bukit Mor Hill (柔佛州 摩山)** a small village in Parit Jawa, about 18km (\~25 min) from Muar. • Elevation: 227m • Duration: \~1–1.5 hours • Difficulty: Easy / Leisure ✨ Enjoy a relaxing hike with scenic viewpoints overlooking a lake, plus fun photo signages along the trail. Perfect for beginners and casual hikers! **🍜 MUAR FOOD & SIGHTSEEING** Muar is one of Malaysia’s most popular foodie destinations, known for its rich heritage, local coffee, and pre-war architecture. **🍽️ Highlights:** • Glutton Street 贪吃街 – Local street food paradise (fried carrot cake, kuey chap & more) • Hua Nam Chinese Kopitiam – Classic local breakfast spot • Otak-Otak Cheng Boi 阿梅麻坡乌达 – Famous grilled otak-otak (fish, prawn, squid) • Sai Kee 434 Kopitiam – Aromatic coffee, toast & soft-boiled eggs • Wetex Parade – Shopping & leisure time **💰 EVENT COST** **• $130 / pax** **• $120 / pax (3 or more sign up & pay together)** **💳 PAYMENT:** PayNow to UEN: 201727764C Wilfred Go Travelling & Hiking Pte Ltd Or Bank Transfer: DBS Current Account: 0029069789 📲 After payment, WhatsApp 94884478 with screenshot receipt **🏢 TA License No: 03066 TA Name: WILFRED GO TRAVELLING & HIKING PTE LTD** **To Connect With Us:** **1\. Telegram Channel: [https://t.me/wilfredtravelsg](https://t.me/wilfredtravelsg)** **2\. Whatapps Channel:** **[https://whatsapp.com/channel/0029VaJmIsU9mrGTPqpect3l](https://whatsapp.com/channel/0029VaJmIsU9mrGTPqpect3l)** **3\. Facebook: [https://www.facebook.com/events/calendar](https://www.facebook.com/events/calendar)** **INCLUDES:** \* Transportation Van < 14 person Bus >15 person \* Group Dinner is only included if group-size is 10 or more \* Mountain Guide/s \* 1 Event Host **EXCLUDES:** \* Personal Insurance \* Items Not Mentioned In Itinerary include massage etc \* Dinner is at own cost if group-size is less than 10 persons • Driver Tipping, No obligation To Give **To Connect With Us:** **1\. Telegram Channel: [https://t.me/wilfredtravelsg](https://t.me/wilfredtravelsg)** **2\. Whatapps Channel:** **[https://whatsapp.com/channel/0029VaJmIsU9mrGTPqpect3l](https://whatsapp.com/channel/0029VaJmIsU9mrGTPqpect3l)** **3\. Facebook: [https://www.facebook.com/events/calendar](https://www.facebook.com/events/calendar)** **Suggested Itinerary:** Sat, (D) 645am-Marsiling MRT Bus Stop 650am-Depart from Marsiling MRT 730am-JB Custom 745am-Stop over breakfast and packed lunch 11am-Briefing & Commence Hike 2pm-Toilet Wash-up & Get-Change 230pm-Lunch@Glutton Street, mixture of Good Food 3pm- Muar Tour Starts from here.... 5pm-Depart 630pm-Dinner 930pm-JB Custom 10pm-Marsiling MRT **Disclaimer, Indemnity and Terms of Participation:** The participant acknowledges that this is an adventure trip. The itinerary serves as a guide only and changes may be required. All participants are strongly advised to have travel insurance. The participant agrees to assume all risks and indemnifies the organizers against all claims, disputes.

In a world where stress, overwhelm, disconnection, and constant stimulation have become common, many of us are moving through life without truly listening to what the body is holding. **Move to Regulate** is a therapeutic dance & body-based healing workshop designed to help participants slow down, reconnect with themselves, and explore nervous system regulation through movement, dance, rhythm, grounding, and embodied awareness practices. Drawing from **Dance Movement Therapy** principles, somatic approaches, nervous system education, grounding techniques, and body awareness work under the specially formulated R.I.M Integrated Dance Wellness Method- this workshop invites participants to understand how stress and emotions can live within the body and how movement can become a pathway toward release, regulation, expression, and connection. Through specially designed stress release and body awareness sequences, participants will be guided into noticing sensations, patterns, breath, posture, rhythm, tension, activation, and ease within the body. The workshop will also include somatic and vagal toning exercises that support grounding, safety, co-regulation, and nervous system awareness. Participants will explore different nervous system states through movement and experiential activities while learning how the body responds to stress, shutdown, overwhelm, safety, connection, and regulation. **Date:** 13th June 2026 **Time:** 5:00 PM – 6:30 PM **Venue:** Bolly Dancing Studio, #01-12 Waterloo Centre, 180261 **Fees:** $25 SGD **The session will include:** • Specially designed stress release and body awareness sequences under the R.I.M Integrated Dance Wellness Method • Somatic and vagal toning exercises • Nervous system informed movement explorations • Guided expressive movement and therapeutic dance practices • Grounding and regulation techniques • Breath, rhythm, sound, and sensory awareness practices • Co-regulation and group-based movement activities • Reflection, creativity, and embodied self-expression • Space for emotional release, connection, and self-awareness *This is not a dance class focused on performance or technique. The emphasis is on using movement as a tool for awareness, expression, healing, and nervous system support.* No prior dance experience is required. All bodies and movement backgrounds are welcome. Please wear comfortable clothing you can move in freely. As this is an intimate group experience, spaces are limited to allow for depth, safety and personal attention. -Suitable for beginners \- No prior dance experience required If you’ve been feeling the nudge, this might be the moment to say yes. Come as you are. Move as you feel. **About the Facilitator** Manasi Joshi is the Founder & director at Rejoice In Motion, a Singapore-based movement and wellbeing practice. With formal training in physiotherapy(IN) , orthopaedic manual therapy (AUS), and dance movement psychotherapy (UK), her work bridges the physical and emotional aspects of healing. She creates grounded, supportive spaces where participants can explore movement & dance as a pathway to self-connection, regulation and holistic wellbeing. Check instagram for more updates: [https://www.instagram.com/rejoice_in_motion/?hl=en](https://www.instagram.com/rejoice_in_motion/?hl=en "https://www.instagram.com/rejoice_in_motion/?hl=en")

​​​**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 50+ cities 📅 Running + Networking events + Community ​​​**Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats) Singapore Instagram http://instagram.com/frc_singapore ​​​**Global FRC**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) 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/)

Prostate cancer is the most common cancer among men in Singapore. Most men have no symptoms in the early stages — and by the time they do, it may already be advanced. **Early detection saves lives. And it starts with knowing your risk.** This May, take the most important step for your health and join us for a free, expert-led talk by **Dr. Lim Huat Chye Peter** — one of Singapore's most respected urologists and founder of the Society for Men's Health (Singapore). **📅 Date:** Saturday, 13 June 2026 **🕑 Time:** 1:30 PM – 4:00 PM **📍 Venue:** Farrer Park Hospital, Connexion, #16-06 (Viv Hall) **💰 Admission:** FREE **If you're a man over 40, this talk is for you.** Most men avoid talking about their health — until it's too late. Don't wait for symptoms. Prostate cancer is highly treatable when caught early, but the window matters. This is your chance to get straight-talking, expert guidance in a relaxed, open setting where all questions are welcome. **What you'll learn:** * What prostate cancer is and how it develops silently * Who is at risk — and why men over 40 need to act now * When and how to get screened, and what tests to expect * Treatment options and the latest advances in urological care * How to have the conversation with your doctor — and what questions to ask Come alone, or bring a father, brother, husband, or friend. The men in your life need to hear this. **Seats are limited. This event is free — but your health is priceless. Register now before it's too late.**

**For ages 13 and above.** Systema is a Russian Martial Art founded by the late Colonel Mikhail Ryabko and Vladimir Vasiliev. Systema was designed to develop individuals in a combative style which upholds the intrinsic value of all human life. This is why it is non-destructive – even of one’s enemies. Through the use of simple exercises, breathing techniques and massage work, Systema helps you to build a strong mind and body. Here is what you can expect: **Warm ups** Class begins with warming up each of the systems of the body – from the breathing, muscular and nervous system, each component needs to be properly engaged. **Thematic studies** Fetching from a huge pool of drills and sometimes even crafting specialized ones, our instructors format a logical progression of the concept being shared. Depending on the ability of the class, the drills are modified to be at the optimal level for learning, with suitable modifications given to students based on their individual performance. **Application of concepts** After the thematic studies, some time is given for the students to apply the training – the intensity is decided upon by the students under the supervision of the instructor. At times, the instructor will request for the students to push themselves, while at other times they are there to taper in the sparring to a productive level. **Cool downs** The cooldowns are usually done in a way both the help the class recover from the higher intensity application section as well as to revisit the concepts again in a calmer manner. This helps to ensure everyone is reminded of the key points. Sometimes we do a little massage. **Training circles** At the end of every training session, we circle up to share a few words about the training. This tradition was handed to us from our founders and is an integral part of our training. ### **Address** Lor 23 Geylang, #03-05 37, Singapore 388371 ### **Schedule** Saturdays 10AM - 12PM ### **Booking Information** * Please contact **98225900** to find out how to book this class. * The instructor will reach out to you once you've booked the class.

**Dates:** * 13 June 2026 * 27 June 2026 * 11 July 2026 * 25 July 2026 **Timing:** 2pm onwards **Venue:** HackerspaceSG **Address:** Textile Centre, #08-10, Singapore 199018 ​We'll be hanging out to practice some LeetCode questions together. **\#\# No food provided \#\# Bring your laptop \#\#** # ​Format: * ​Pick a random LeetCode question (easy or medium). * ​One volunteer will connect to screen and attempt the question within 40 minutes. * ​Rest of the group will either role-play as interviewer, collaborator or just observe. * ​At the end of the attempt, the group will provide feedback to the volunteer. # ​Format of Feedback: ## ​Soft skills * ​Ask good questions? * ​What should be talked about? What should demo thru code? ## ​Technical feedback * ​Quality of execution. # ​About JuniorDev SG: ​JuniorDevSG is a developer interest group that focuses on providing a place for junior developers to learn and network with each other. ​At the same time, we seek to be a support system to help junior developers break into tech, navigate their careers as well growing them to one day become senior developers or tech leaders in the tech industry.

⚠️ **REGISTRATION IS REQUIRED VIA [THIS LUMA FORM](https://luma.com/s0txhgfy)**[ ](forms.gle/saLWmbr5XbwUX8Jp8)⚠️ SHELLGym is the regular cybersecurity workout you have been looking for! Whether you're just starting out and need some exercises, studying for a cert (hint: OSCP), looking at CTF challenges, or developing something cybersecurity-related (maybe your own automated tools?), SHELLGym aims to help you progress in picking up practical cybersecurity knowledge and skills. Come and go as you please, work on your own stuff with like-minded individuals, or just have fun during the workout! **AGENDA** Linux Forensics and Reverse Engineering basics: * Triaging in Linux * Step-by step IDA * Step-by-step gdb * Guided walkthrough on selected real-life binary **⚠️ NOTE** Bring your own laptops (and laptop chargers) with pre-installed Linux VM. Please also download IDA Free ([Link to Guide](https://hex-rays.com/ida-free)) before the session. **VIRTUAL SHELLGyms in JUNE** (by request) Hosted on Discord, do approach KK or the Div0 Crew for access **TRAINER** **KK Tan — Founder, counterShell** As a mid-careerist convert to cybersecurity, **Tan KK** picked up his practical skills through getting OSCP certified and by participating in a variety of CTFs. In his career at CSIT, he performed a variety of red-teaming and vulnerability research roles and established the Cyber Training School at CSIT as the Lead Instructor. Besides the OSCP certification, KK is also OSCE and OSEE certified, and has a Bachelor's degree in Social Science (Psychology). He now sees psychology as a field of study where you fuzz humans until they produce unexpected behaviour. **CO-ORGANISERS & VENUE SPONSOR** * [CyberSG TIG Collaboration Centre](https://www.linkedin.com/company/cybersg-tig-collaboration-centre) * [BLOCK71](https://block71.co/) **IMPORTANT NOTICES** * Code of Conduct: [https://www.div0.sg/code-of-conduct](https://www.div0.sg/code-of-conduct) * Terms of Use & Disclaimer Notice: [https://www.div0.sg/terms-of-use-disclaimer-notice](https://www.div0.sg/terms-of-use-disclaimer-notice)

Over a billion documents processed. Millions of Veterans impacted. Hundreds of thousands of employee hours saved. Faster decisions. Greater accuracy. More benefits in the hands of our disabled Veterans. We created Smart Search, the world’s largest consumer of Amazon Textract, right when GenAI began reshaping what’s possible. Since then, we’ve built a suite of AI‑driven solutions that transform this data into real, measurable outcomes—accelerating benefits decisions for our Nation’s Veterans. Join us for a focused conversation on how an outcome‑driven approach to AI is helping us boost accuracy, streamline workflows, and deliver faster results for those who have served. This is a follow up to the AWS re:Invent 2023 "Intelligent Document Processing with Gen AI for Public Sector" presentation. About Speaker: Cameron Williams is a Senior Technical Project Manager and cross-functional technical leader at Booz Allen Hamilton with 15+ years of experience architecting and evolving scalable, cloud-native systems, from greenfield development to complex enterprise modernization. https://www.linkedin.com/in/cameronw711/ **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

*Sorry for the 2 month break but I had to deal with some family member health issues, but we are now back!!* **LOCATION - THE DAILY GROWLER -** **2812 Fishinger Rd, Upper Arlington, OH 43221** Over the years, we’ve heard two requests constantly: 1. A place that was quieter and possibly private. 2. “I wish they accepted Bitcoin.” We’ve finally found a solution to these requests with The Daily Growler. We’ll have access to their private room, and you’ll be able to pay your tab with Bitcoin. Join us for a fun and relaxed social event! Enjoy delicious food and drinks as we chat about the latest news in the Bitcoin world. Everyone is welcome, whether you're looking for guidance, have questions, or just want to meet like-minded people. These social evenings are a great opportunity to make new friends and enhance your experience at the larger events throughout the year. We look forward to seeing you there! PSA: If the attendee RSVP seems low, keep in mind that most of our attendees come from X and not [meetup.com.](http://meetup.com./) You are welcome to come and become a part of our online community. Recordings of past guest speakers are available on our YouTube channel [https://www.youtube.com/@columbusbitcoin](https://www.youtube.com/@columbusbitcoin)

Join the Columbus AI community for a special event. **Battle of the Personal Agents** is your chance to see what people are actually building with AI agents and personal automation systems. Whether you’re running OpenClaw, Hermes, or a completely custom solution, bring your agent and show the community how it works. We’re interested in real-world implementations: the problems your agent solves, how you use it day-to-day, how it’s hosted and managed, how you built it, and why you’ve chosen to keep using it. Live demonstrations are encouraged, so be prepared to show your code, architecture, workflows, and your agent performing real tasks. This is less about polished presentations and more about sharing practical experience, comparing approaches, and learning from one another. If you’d like to present, please contact Chris Slee (via meetup) before the event so we can allocate enough time for everyone’s demonstrations. Come ready to show what you’ve built, discover what others are doing, and maybe find a few ideas worth taking home. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.linkedin.com/company/transformlabs/) Sign up also accessible via [Transform Labs Luma](https://luma.com/transformlabshq)

In this local meeting, you will discover knowledge that you can use to get over the past. The key to improving your personal motivation, self-confidence, and happiness is to get over your painful memories. When you become free of your past, you will be free from stress, anger, anxiety and depression. Studies show that negative emotions can affect your health. By being free of negative emotions, believe it or not, you will most likely even look younger, feel more energetic, and become healthier! Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is brought to you by the Dianetics and Scientology life improvement center.

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

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).