Erlang Programming

👋 Hello Grafana & Friends Singapore! This month, we are excited to partner with the MongoDB for a collaborative evening of tech! As observability and data landscapes become increasingly complex, the integration between the LGTM stack and MongoDB is more critical than ever. This month, we are bringing together engineers from both ecosystems to share implementation strategies, architectural best practices, and real-world monitoring patterns. As always, come ready to learn, connect, and exchange ideas with the community. Light bites and networking included! **Topic 1: Real-Time Observability with MongoDB and Grafana: From Logs to Dashboard** **Speaker: Piti Champeethong**, Senior Consulting Engineer, MongoDB **Session Abstract:** Learn how to integrate MongoDB Atlas with Azure Grafana to build real-time dashboards for both database performance and application data. This session covers Prometheus-based monitoring, direct querying, and Azure-native pipelines for modern observability. **Topic 2: Agentic Observability: From OTel Signals to Production Remediation with MongoDB MCP** **Speaker: Hendri Tjiptowibowo**, Senior Partner Solutions Engineer, Grafana Labs **Session Abstract:** Learn how Grafana Assistant (available on OSS) combines OpenTelemetry signals with MongoDB MCP to move from observability to action. This session demonstrates AI-driven investigation of production issues, including trace analysis, query plan inspection, index recommendations, and automated remediation workflows. **📅 Date:** Thursday, June 11th, 2026 **🕡 Time:** 6:00pm - 9:00pm **📍 Location:** Smartworks Great Eastern Centre, 1 Pickering Street, Singapore 048659 - Level 8 ⚠️ **Reminder:** Please bring your valid physical photo ID (NRIC or Passport) to access the building. **Agenda** * **6:00 PM:** Registration, Light Bites & Networking * **6:55 PM:** Welcome & Opening * **7:00 PM:** Piti Champeethong, Senior Consulting Engineer at MongoDB – Real-Time Observability with MongoDB and Grafana: From Logs to Dashboard * **7:30 PM:** Hendri Tjiptowibowo, Senior Partner Solutions Engineer at Grafana Labs - Agentic Observability: From OTel Signals to Production Remediation with MongoDB MCP * **8:00PM:** Networking & Close **In Partnership with MongoDB:** This event is a collaborative session between **Grafana & Friends Singapore** and the **Singapore MongoDB User Group**. Special thanks to our Co-Partner, **MongoDB**, for providing the space.

**Talk Abstract:** — \# Bootiful Spring Boot 4: Sweet and Sour Spring Boot 4.x and Java 25 have arrived, making it an exciting time to be a Java developer! Join us, **Josh Long** (@starbuxman) and **DaShaun Carter** (@dashaun), will dive into the future of Spring Boot with Java 25. We'll learn how to scale your applications and codebases effortlessly, explore the robust Spring Boot ecosystem featuring AI, modularity, seamless data access, security, and cutting-edge production optimizations like Project Loom's virtual threads, GraalVM, AppCDS, and more. Let's explore the latest-and-greatest in Spring Boot to build faster, more scalable, more efficient, more modular, more secure, and more intelligent systems and services and we'll look at how to get older apps to this leaner, greener future. \-\-\- **Josh Long** (@starbuxman) has been Spring's first-ever Developer Advocate since 2010. A Java Champion, author of 7 books, host of *A Bootiful Podcast*, and open-source contributor — if Spring ships it, Josh has probably already done a live demo of it. **DaShaun Carter** (@dashaun) is a Spring Developer Advocate at Broadcom, Testcontainers Champion, and keynote speaker with a passion for helping developers ship better software, faster. Whether he's on stage, on a Raspberry Pi, or on a racecourse, he brings the same deliberate, high-energy focus to everything he does. **Important:** Please share your mail address ( if you have not done already) , need it for security clearance at Redhat . Can send it to [mailto:singadev-organisers@googlegroups.com](http://mailto:singadev-organisers@googlegroups.com/) by 9 June evening. Thanks for understanding and cooperation.

Feel free to join us for independent exercise. It is not a group led exercise event. Let's hangout, rest, and language exchange! ローカルの場所で運動に、ぜひお気軽にご参加ください。 なお、これはインストラクターが指導するグループ運動イベントではありません。 一緒に交流したり、休憩したり、エクスチェンジを楽しみましょう！

Meet: Buona Vista (Green Line) level 2 MRT Passenger Service Centre When: Thursday 11 June 5 pm \*\*This is a Rain or Shine event. Please take a good lunch or bring along some snacks if you feel hungry along the way. 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! Start our journey from Buona Vista as we walk along the Ulu Pandan connector towards Jurong East. The Ulu Pandan Park Connector has an amazing array of biodiversity, such as the Grey Heron (*Andrea cinerea*) and the White-throated Kingfisher (*Halcyon smyrnensis*). Along the way, view the now-defunct railway truss bridge across Sungei Ulu Pandan, part of the old Jurong line. A family of otters lives there too! If you are lucky, you will get to see them. We will end our journey at the Jurong East Mall for dinner. What to bring: \- Shades \- umbrellas \- Water \- Good walking shoes \- Long pants preferred \- Mosquito Repellent This is a Rain or Shine event. Where there are thunderstorms, we will adjourn for coffee or early dinner. We will resume the walk once the rain subsides. Event communication will be through the event comments section. Please check the event comments section 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. ***As a consideration to others, you should change your RSVP status the day before the event to allow those on the waitlist time to schedule for the event if you can't attend.*** 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(s) will not be responsible or held liable for any accidents or injuries during or arising from the event.***

**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!

**Description** Hi, thank you for visiting our community page. This event is a casual language exchange and socializing to make new friends. **Join if you...** * want to learn new languages through socializing. * want to make new friends locally and internationally. * want to learn new cultures. **How to join** Just RVPS on this page. \*Please make sure to update the attendance status as spots are limited. **Others** If you have any questions, please contact the host.

**LEARN MANDARIN WITH US** **和我们一起学华语/普通话** Come and join us every Saturday afternoon and learn some useful Mandarin from proficient speakers in a friendly and casual atmosphere. Besides learning the language, you will also get to make new friends from all around the world. Whether you are a beginner, intermediate and advanced learner, we welcome you. The meetup starts at 4 pm. We will try our best to arrange seating at this time so that each group has expert Mandarin speakers. If you come later than 4.10 pm we cannot guarantee ideal seating. Seating priorities will be given to those who signed up. **欢迎会说华语/普通话的朋友** 我们非常欢迎会说华语/普通话的朋友来参加我们这个华语/普通话练习小组，帮助来自世界各地的朋友学习华语/普通话。 *** GETTING THERE Take Downtown (blue) Line or Circle (yellow) Line to Promenade MRT. Take Exit C at Promenade MRT, and go up to level 3. LOCATING US INSIDE THE FOOD COURT Look for a round tables section near the wall of the food court away from the stalls. You can drop the Event Host a message if you are lost. NO COMMERCIAL ACTIVITIES We welcome anyone who is keen to learn a language or help others learn the language. However, this is NOT the platform for individuals who have other intentions, such as recruiting members for their business or organization or selling products or services. We will not hesitate to ask such individuals to stop attending our meetups.

Free Tango trial class for complete beginners. No partner required. Free. Please register via WhatsApp +65 97627805.

안녕하세요, Have you been watching a lot of Korean dramas, but can't get past "안녕하세요" (annyeonghaseyo) and "감사합니다" (kamsahamnida)? Or simply want to say out a line from a drama? join us to pick up some Korean at Saturday Korean: 토요일 한국어. It is best that you already have some working knowledge of the Korean language so that you will have a smoother conversation. All our language-learning meetup events are free of charge. WE WANT KOREAN SPEAKERS TOO! We are on a constant lookout for proficient Korean speakers (not necessarily native) to come and share their knowledge of the language and culture. If you speak the language, come join us, help others learn and make lots of friends. See you there! 한국어 화자를 기다리고 있습니다! 유창한 한국어 구사자 (반드시 원어민일 필요는 없음) 분이시라면 저희와 함께 언어와 문화에 대한 지식을 공유해보시는 건 어떨까요. 다른 한국어 학습자들이 한국어를 배우도록 도와주고 많은 친구도 사귀어 보세요. 곧 만나요. 1. NO COMMERCIAL ACTIVITIES We welcome anyone who is keen to learn a language or help others learn the language. However, this is NOT the platform for individuals who have other intentions, such as recruiting members for their business or organisation or selling products or services. We will not hesitate to ask such individuals to stop attending our meetups if they have been found to be pestering our members for such purposes. 1. GETTING THERE Nearest MRT station: Promenade MRT Station. LOCATING US INSIDE THE FOOD COURT We are usually seated near the back of the food court around the tray return and handwashing area. Look out for our Korean Meetup signboard on the table. You can also send the host a text message via Meetup.

**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.

English-Japanese Language Exchange while exercising! 運動しながらの英語と日本語の言語交流！ Meet at Redhill MRT station ( I will be wearing a happi/haori looking thing for visibility) 待ち合わせ： Redhill MRT (Green Line) Things to bring・持参物: \- Umbrella\!\!\! 日傘！！！ \- Bottled Water・水 \- Towel・タオル \- Insect Repellents・虫よけ \- Medication if any・自分の薬（必要であれば） \- It will be hot\, short sleeve and pants recommended \- 暑いので運動用の軽装がおすすめです。 ルールと注意事項： * コミュニケーションは親切で適切に行ってください。 * 相手が希望しない場合は連絡先の交換をしつこくせずにください。 * 参加は自己責任で行ってください。活動中のプライバシーや健康問題は自己管理が必要です。 * グループの管理者は、不適切な参加者をブロックおよび禁止する権利を有します。 * グループの活動中やその後のいかなる形の嫌がらせも許容されません。 * いかなる種類の勧誘も禁止されています * このグループの活動に参加することで、グループ写真などのマーケティング目的で使用される写真や動画に同意するものとします。活動中の写真撮影から離れていただいても構いません。写真や動画から自分を削除・隠したい場合は、ご連絡いただければ、プライバシー保護のために笑顔の絵文字を貼り付けますので、お知らせください。 * Rules and notes: \- Be kind and proper in your communication\. \- Do not pester for the exchange of contact information if the other party wishes not to\. \- Join at your own risk\. You are responsible for your own privacy and health issues during activities\. \- Group admins reserve the right to block and ban any unruly participants \- Any form of harassment during or after the group's activities will not be tolerated \- No recruitment or soliciting of any kind is allowed \- By participating in this group's activities\, you consent to be in any pictures or video used for marketing purposes\, such as group photos\. If you feel uncomfortable\, you are free to step away from any photo\-taking\. If you wish to remove/hide yourself from any media\, kindly let us know\, and we will paste a smiley face over you to protect your privacy\.

We've moved to guild.host Look for us there. https://guild.host/events/buckeye-cocoaheads-nscoders-tcbrk5

**🌹 Orlando Singles Meet on Zoom: Live Speed Dating** No apps, no awkward bios. Just live one-on-one Zoom chats with Orlando singles picked for you. **What to expect:** - Register and take a short personality quiz - Jump on Zoom when the event starts - Meet singles in guided one-on-one rounds - Get your mutual matches by email afterward **Pick the age range that fits you:** → **Ages 18-32** — [Register here](https://theliveround.com/product?productId=573&productType=onlineSpeedDating&city=Orlando&groupurlname=manga-k-drama-foodie-language-feast-network&ar=18-32&face_v=8.0) → **Ages 30-46** — [Register here](https://theliveround.com/product?productId=573&productType=onlineSpeedDating&city=Orlando&groupurlname=manga-k-drama-foodie-language-feast-network&ar=30-46&face_v=8.0) → **Ages 40-58** — [Register here](https://theliveround.com/product?productId=573&productType=onlineSpeedDating&city=Orlando&groupurlname=manga-k-drama-foodie-language-feast-network&ar=40-58&face_v=8.0) → **Ages 55+** — [Register here](https://theliveround.com/product?productId=573&productType=onlineSpeedDating&city=Orlando&groupurlname=manga-k-drama-foodie-language-feast-network&ar=55+&face_v=8.0) > Note: clicking RSVP alone won't get you in. Register via your age group and take the quiz. Places fill up. Register, relax, and let the night do the work. 😊

**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

**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

**The event has been canceled.** *Note: this is a demonstration event only, you **will not** shoot you own images. However, if you bring your camera we can test it for compatibility with the studio lights.* Bondage elements can add an extra layer of emotion and artistry to your images. Sample images on the internet are however dominated by BDSM style shots that are often sexualized and emphasize the model being in distress. In this demonstration Rachel and I show ways to use bondage elements in an artistic way. We explore the types of accessories that work best in artistic images and the best way to photograph them. Our model is Rachel Adams, an internationally known fetish model with many years of experience in this genre.

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

**\*\*\* We've Moved! Bold Penguin - 6555 Longshore St, Dublin, OH 43017 \*\*\*** Ryan Carroll **Local AI in Rails: Fast, Cheap, and Predictable** Rails apps usually reach for external AI services when they need “intelligence,” but that approach can bring latency, cost, and unpredictability along for the ride. This talk shows a different path: running a Japanese sentiment model directly inside a Rails app, using ONNX Runtime, background jobs, and real-time updates to keep the user experience fast and responsive. Using a small app called **Sentiment Omikuji** as the case study, the talk walks through how the model was trained in Python, exported to ONNX, and loaded into Ruby for local inference. It also covers how Japanese text is tokenized, how the sentiment output drives a fortune generator, and why the app uses Solid Queue to keep model work off the request path. Along the way, the talk explores the tradeoffs of local inference versus API-based LLMs, and why classic machine learning can still be the right tool for focused problems. Attendees will leave with a practical architecture they can adapt in their own Rails applications, plus a clearer picture of when local AI makes sense, how to keep it predictable, and what it takes to make it feel good in a real app. **AGENDA:** * See updates to parking below * Doors open at 5:30, feel free to come and hang out before! * Official start of the meeting is at 6:30pm * After the meeting is done, we will go hang out at a nearby space in Bridge Park! If you can, please sign up via meetup by noon the day of the meeting so we can have an estimate headcount for food :) We always order extra, so feel free to join us even if you don't get signed up! Thank you to Bold Penguin for providing the food and location! **Parking & Arrival:** **Parking:** Parking in Bridge Park is free. The closest lots are the Mooney Garage and the Hotel/Endres Garage. **Entry:** The doors to the office are to the right of PINS. The street level door and elevators lock at 6pm. If you arrive after that, someone should be there to let you in, else call the number posted. Take the elevator to the 2nd floor. Once you exit the elevator, turn right. \*\*\* We are a bunch of professionals, students, and geeks who are excited about Ruby programming language ([http://ruby-lang.org/](http://ruby-lang.org/)) and Rails framework ([http://rubyonrails.com/](http://rubyonrails.com/)) and the joy they have brought back to web development. Our main goal is to share the love of the Ruby and Rails ecosystems with anyone that is interested. We cater to everyone, whether a non-programmer through advanced Rubyists. * We give lectures on programming topics * We freely provide decades worth of experience * For full details of this month's meeting please visit [http://columbusrb.com](http://columbusrb.com)