Decentralized Systems & Applications

Meet: Punggol Coast MRT Station (NE18) Passenger Service Centre\* When: Thursday Jun 25th, 4:30 pm\*\* Join our whatsapp channel here: https://whatsapp.com/channel/0029VbD6bGk8fewjRFfBRx29 for updates on our walks. \*\*This is a Rain or Shine event. Please take a good lunch or bring along some snacks if you feel hungry along the way. Our walks are usually between 8 - 12 km long. Just so you know, the weather may be hot but as the sun sets, the weather should be cooler. Please be punctual. You are encouraged to be slightly early to avoid disappointments. There will be 5 minutes grace for attendance taking. Please remember that we cannot wait because this would be unfair to those already present. This Meetup group is a community-led group by volunteers. Please extend grace in areas of inadequacy. You are most welcome to give constructive feedback; we strive for improvement! The new Punggol Coast MRT station is open! Tied to the Punggol Digital District and near the SIT University's new campus, the architecture is a sight to behold. Let's meet at the Punggol Coast MRT and walk through the SIT University's new campus together. Then we head towards Coney Island! Formerly known as Pulau Serangoon ([English](https://en.wikipedia.org/wiki/English_language): Serangoon Island), Coney island was once owned by entrepreneur siblings [Aw Boon Haw](https://en.wikipedia.org/wiki/Aw_Boon_Haw) and [Aw Boon Par](https://en.wikipedia.org/wiki/Aw_Boon_Par), before being sold to an Indian businessman, Ghulam Mahmood, in 1950 with the intention of turning the island into a resort modelled after the amusement area at [Coney Island](https://en.wikipedia.org/wiki/Coney_Island), New York.[\[5\]](https://en.wikipedia.org/wiki/Coney_Island,_Singapore#cite_note-5) Unfortunately, things didn't work out. We will head towards the Lorong Halus Red Bridge and have dinner around the area. See you there :-)) Sources: https://en.wikipedia.org/wiki/Coney_Island,_Singapore What to bring: \- Shades \- umbrellas \- Water \- Good walking shoes \- Long pants preferred \- Mosquito Repellent Event communication will be through the event chat. Please check the event chat on the day of the event so that you will be updated on any changes. Please be sure to RSVP responsibly to help those who are on the waitlist get the chance to come for the walks. ***You should confirm your RSVPs the day before the event to allow those on the waitlist time to schedule for the event.*** If I notice many no-shows despite the RSVPs, I may remove you from the RSVP list so that others can join my walks. Thank you for your kind understanding. Disclaimer: Your physical well-being is your responsibility. Exercise care while you walk. Please let me know when you feel unwell and need to drop out. Walking comes with a risk of personal injury. ***By joining the walk, you accept responsibility for your safety and join the walk at your own risk. The organizer will not be responsible or held liable for any accidents or injuries during or arising from the event.***

**\*\* RSVP here: [https://luma.com/469nzlb5](https://luma.com/469nzlb5) \*\*** System design interviews can feel intimidating, but they don’t have to be. As part of the **Code Mentoring Programme**, we’re bringing together engineers, job seekers, mentors, and mentees for a practical workshop on how to approach system design interviews with more clarity and confidence. Led by **Victoria Lo**, Solutions Engineer Lead and WomenDevsSG Director, together with **Aishwarya**, Community & Programs Lead, this session will walk through a repeatable framework for structuring your answers, communicating tradeoffs, and focusing on what interviewers actually want to see. Instead of memorising patterns, you’ll learn how to apply a method to any system design problem. Through a guided case study, we’ll cover how to: ✅ Break down requirements, entities, and APIs ✅ Sketch a high-level architecture ✅ Dive deep into critical design areas ✅ Practise applying the framework in real time with other attendees 🎯 **Who this is for:** Engineers, job seekers, and professionals preparing for technical interviews who want to build confidence in tackling system design questions. 📅 **Date:** 25 June 2026, Thursday 🕖 **Time:** 6:30 PM – 9:00 PM 📍 **Venue:** The Trade Desk 🔗 **Register to be a mentor or mentee:** Apply by **15 June 2026** → [https://linktr.ee/juniordevsg_mentoring](https://linktr.ee/juniordevsg_mentoring?utm_source=luma) Come ready to learn, practise, ask questions, and grow together. ​**Venue Sponsor:** The Trade Desk

Ready to learn a fun and exciting sport while getting some exercise? Our pickleball group classes offer a welcoming and supportive environment where you can learn and improve your skills while also making new friends. Our certified coaches will guide you through the basics of the game and help you to develop your technique and strategy. So, whether you are a seasoned athlete or just starting out, come join us for a thrilling and energizing game of pickleball! ### **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 ### **Cancellation Policy** Credits will be considered used if class is cancelled within 24 hours before the start of the lesson

***Adult Basketball (Ages 18+) – “Game Ready”*** Whether you’re a beginner or an experienced player, our adult sessions provide skill development, fitness training, and competitive play. These sessions focus on shooting accuracy, defensive strategies, and game execution, ensuring players stay sharp and active. ### **Address** 604 Elias Rd, Block 604, Singapore 510604 ### **Schedule** Thursdays 5PM - 6PM ### **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.

## Power up your judgement and evaluation skill (Mandarin) 想提升你的判斷力和評估技能嗎？來參加我們的現場活動，透過實戰練習和互動討論，幫你快速成長！在輕鬆愉快的氛圍中，學會如何更有效地做決策，提升工作和生活中的判斷準確度。別錯過這個讓自己充電的機會，期待你的加入！ 🎯 冠军嘉宾 · 谢丽香博士 \- 学术背景：北京师范大学应用心理学博士，前华侨中学资深教师 \- 教育与培训：负责中文讲演培训与口语教学设计，主办全国及亚太华语辩论比赛 \- 国际讲演会成就：新加坡管理学院资深讲员，曾任L5分区总监 \- 舞台荣誉：荣获国际讲演会泛东南亚、LV区即席演讲冠军、备稿冠军、幽默演讲冠军、评论冠军 \- 经验积累：20多年演讲、评论与培训经验，培养无数学员提升公众演讲与沟通能力 💡 你将收获 \- 评论技巧：精准点评，赢得裁判与观众的心 \- 准备方法：冠军的赛前习惯与实战策略 \- 心态调整：化紧张为力量，掌控舞台气场 Nee Soon East CC, Level 4, Room 4. 7pm

Welcome to my sailboat. **Please read this notice**. These are crew opportunities, not for passengers, non-swimmers, people afraid of the water or get seasick. Bring a change of clothes, a towel, a hat, non-marking footwear with heelstrap and sunblock. There is a toilet and drinking water on board. Participants like to contribute to expenses in appreciation of this opportunity. **Also**, please confirm your attendance by SMS or Whatsapp on Saturday for sailing on Sunday, to avoid no-shows and missed sailings. No-shows deprive others of a place, so be responsible and remove your reservation if you are not attending, and please do it in good time. Places unconfirmed by Saturday will not be reserved, and I can't wait for you if I'm not sure you're coming. Keep me informed and reply to my messages. Don't be late. Thank you. Derek 9807-5827.

Hi everyone, We will be having our monthly meetup event on 27th June Saturday at 2pm at Two Blur Guys cafe, Level 2 Lecture Room at 387 Jalan Besar. Look for Mr Teddy Lee when you reach the place. My hp no. is 9645 7493. This is a networking and talk event for everyone interested in AI for Lead Generation Masterclass or ChatGPT and to discuss about the latest developments in the use of AI in Lead Generation. You can join our LinkedIn group at https://www.linkedin.com/groups/14301790/ and also our Telegram group at https://t.me/+oJTJ-6fBKs04MTI1 ## **Event Description:** ✅ How AI is transforming lead generation and telemarketing ✅ Common challenges in traditional sales prospecting and how to overcome them ✅ How AI-powered calling can engage prospects 24/7 ✅ Best practices for qualifying leads automatically before handing them to your sales team ✅ Real-world examples of businesses using AI to increase productivity and reduce operating costs ✅ How to integrate AI outreach into your existing sales process ## **Speaker’s Profile: Eron Hwang** • **Eron Hwang** has built his career around helping businesses acquire customers and secure growth opportunities. Beginning in the IT industry before moving into insurance advisory and SME financing, he has accumulated over 8 years of experience in sales, business development, and client engagement. • As an advocate for AI-driven business solutions, Eron now works with companies to modernize their lead generation processes through AI telemarketing and automation technologies. His sessions focus on practical, real-world strategies that help SMEs increase sales productivity and stay competitive in an evolving business landscape. Agenda • 2pm start of registration • 230pm start of sharing by the speaker from AI Nexus Communications Pte. Ltd. • 250pm Q&A session • 3pm start of networking event • 4pm end of event Note: Please bring along your name cards for networking purposes or exchange your LinkedIn profile is also possible.

Join the SG Hikes Group for an exhilarating day exploring Pulau Ubin’s scenic beauty and enjoying a well-deserved lunch! Our adventure will focus on hiking to the Ubin Quarry Viewpoint, a stunning spot offering panoramic views of the island and beyond. \*\*Ferry Ride to Pulau Ubin (30 minutes)\*\* * \*\*Time:\*\* 0900am * \*\*Details:\*\* Board the ferry from Changi Point Ferry Terminal to Pulau Ubin. Enjoy the short ride across the water, taking in the sights and getting excited for the hike ahead. \*\*Start of Hike to Ubin Quarry Viewpoint (1.5 - 2 hours)\*\* * \*\*Time:\*\* 0930am * \*\*Details:\*\* Begin our hike through the lush trails of Pulau Ubin. The path to Ubin Quarry Viewpoint is moderately challenging, with some uphill sections. The reward is a breathtaking view of the quarry and the surrounding landscape. Our guide will share interesting facts about the island’s history and flora along the way. \*\*Break at Ubin Quarry Viewpoint (15 minutes)\*\* * \*\*Details:\*\* Pause to take in the spectacular views from the viewpoint. This is a great opportunity for photos, stretching, and enjoying the serene environment. \*\*Return to Changi Point Ferry Terminal (30 minutes) (1 - 1.5 hours)\*\* * \*\*Details:\*\* Head back down and make our way to Changi Point Ferry Terminal. board the ferry back to Changi Point. Enjoy the relaxing ride and reflect on the day's adventures. \*\*Descent & Lunch at Changi village food center\*\* * \*\*Time:\*\* 1130am * \*\*Details:\*\* After lunch, Enjoy the relaxing ride and reflect on the day's adventures. This is also a great time to mingle with fellow hikers and share stories from the trek. \*\*End of Event\*\* \*\*What to Bring:\*\* \- Comfortable hiking shoes \- Sun protection \(hat\, sunscreen\, sunglasses\) \- Reusable water bottle \- Light backpack \- Snacks \(if needed\) \- Camera/phone for photos \*\*What’s Included:\*\* \- Ferry ride to and from Pulau Ubin \- Guided hike to Ubin Quarry Viewpoint \- Lunch at Changi Village Food Center \*\*Notes:\*\* \- Please ensure you are in good health and able to handle a moderate hike\. \- Weather conditions may affect the hike\, so be prepared for changes\. \- In case of any special dietary requirements or allergies\, please let us know in advance\. We look forward to seeing you for a memorable day of exploration and camaraderie on Pulau Ubin!

Ace Your Writing Workshop: Master A-Level General Paper Essay Writing Trying to turn facts into strong, persuasive arguments for your A-Level General Paper? Join this focused, hands-on workshop to master argumentative techniques, rhetorical strategies, and persuasive writing styles. Learn practical frameworks and proven tips to write with greater clarity, structure, and impact. Details Friday, 26 June 20263:00 PM – 5:00 PM Fee: $10 (Limited seats) Location shared upon registration Perfect for A-Level students who want to improve their essay writing and score higher in the General Paper. Brought to you by Elleron Asia, in collaboration with Asia AI Association (AAIA) and Casco Publications. \*Speaker Profile\* Pauline Natalie is the author of the Ace Your Writing series, including Writing the World: The Dynamic Student’s Guide to A-Level General Paper. With a background in education and technology governance, Pauline delivers interactive workshops that equip students with tools they can immediately apply to improve their A-Level General Paper performance. She specialises in helping students develop clear, persuasive, and well-structured writing through practical techniques and real exam-focused strategies.

**🌙 Mystical Numbers, Drinks & Deep Talks at** Yes, **Sembawang Park** is a popular spot in Singapore for both picnics and fishing. The area features a natural sandy beach, grassy areas for picnics, and a dedicated jetty for fishing, all with a scenic view of the Johor Straits and Malaysia**🌊** **Join the Singapore Meetup Group for a unique and enchanting evening by the sea! Enjoy a relaxed picnic atmosphere at Sentosa Beach, combined with fun drinking games, thought-provoking debates, and fascinating discussions around numbers, self-identity, and their deeper interpretations.** **Whether you’re a seasoned number reader or a curious beginner, this event is a welcoming space to explore meanings behind numbers, share perspectives, and connect with like-minded people in a beautiful natural setting.** **✨ What to expect:** * **Chill beach picnic vibes** * **Fun drinking games 🍹** * **Light debate & discussion on life, personality, and numbers** * **Meaningful conversations & new connections** **💰 Event fee: $10 guy lady $6** **(This helps cover Meetup platform and event-related expenses.) Provide picnic mat and ice** **Bring your curiosity, open mind, and good energy — or simply come to enjoy the sea breeze and great company.** **📍 Location:** **Don’t miss this special blend of spirituality, social fun, and outdoor leisure. See you by the beach!🕒 Event Flow (Flexible & Chill)** **You’re free to follow the schedule or simply enjoy casual chats if you prefer.** **🧊 First 30 min – Self Introduction** **Light and easy introductions. No pressure, just be yourself.** **🍹 Next 30 min – Drinking Game** **Fun ice-breaker games to loosen up and connect naturally.** **💬 Next 30 min – Debate Game** **Interesting discussions around:** * **Life** * **Career** * **Relationships** **Share your thoughts, listen to different perspectives, and spark chemistry 💡** **📸 Final 30 min – Photo Session Take photos with:** **A meaningful and memorable takeaway 🌙** **To confirm your participation, please email WhatsApp** **87964912** **us at least 1 days before the event. Please note that marking yourself as “Interested” on Meetup does not confirm your slot. Kindly contact us early to secure your place.** **Walk-ins are not allowed.**

You are invited to a creative Zentangle Journaling class! Unleash your creativity and calm your mind, where art meets meditation! Fee at $8 for every first-timer. You will be given a Zentangle Journaling kit. Light refreshments will be provided. No experience is needed. All you need is to have an open heart and mind to enjoy the therapeutic and relaxing time! RSVP soon to book your seat!

*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)

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

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.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *Customize the IDE: Building Extensions for Visual Studio Code* Visual Studio Code is one of the most widely used development environments today, and much of its flexibility comes from its extension ecosystem. Extensions allow developers to customize the editor with new features, integrations, and workflow improvements tailored to their needs. In this session, we’ll cover what extensions are and the different types available, including full extensions written in TypeScript or JavaScript, along with lighter-weight extensions such as color themes, language packs, language support, code snippets, and keymaps. We’ll also look at practical reasons a developer might create an extension, from automating repetitive tasks to adding custom tooling. The session includes a hands-on walkthrough of creating a new extension, testing it locally, and understanding the basic project structure. We’ll close with a brief overview of how extensions are packaged and published to the Visual Studio Marketplace and other distribution options. **YouTube Link** TBD

Come chat about Atlassian tools and best practices at the Reynoldsburg Sunny Street Cafe and Breakfast is on Atlassian! Let's get the day started off with breakfast with your ACE Leaders! We're always excited to talk about Atlassian Products, share our knowledge and hand out swag! Come chat with us about new product news and anything you are working on within the Atlassian product stack. This is a great opportunity to come see what we are all about, hear new business news and share with other Atlassian users your questions and experiences. We'd love to see new and old friends come out to chat and learn about Atlassian! Agenda --- Moderators Kimberly Deal - Columbus Atlassian User Group Leader Kevin Stanley - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Hosted By Kimberly Deal, Atlassian User Group Leader Kevin Stanley, Chief Everything Greg Sprowls, Agility Lead --- Global Partner Atlassian (http://atlassian.com) Millions of users globally rely on Atlassian products every day for improving software development, project management, collaboration, and code quality. Partner Atlassian --- For over a decade, Atlassian customers have come together to network, share ideas, solve problems, and find new ways to use Atlassian products. Today, more than 15,000 people take part in Atlassian community events in more than 30 countries. --- Complete your event RSVP here: https://ace.atlassian.com/events/details/atlassian-columbus-presents-rise-and-shine-with-atlassian-reynoldsburg-5/.