Lisp

Hi Gophers! Join us this April for an evening of Go talks exploring real-world systems, from building a BitTorrent client to running Go on legacy architectures. We are looking forward to connecting with you. * **Agenda** **6:00pm — Food & Networking** **6:30pm — Intro + Go News** **6:45pm — Talks** **8.00pm — Wrap up then head out for kick ons** **🎤 Tom Clancy** **Building a BitTorrent client in Go** BitTorrent, first released in 2001 is a peer-to-peer protocol for file sharing. Its decentralised approach, where pieces of files are exchanged with peers (rather than a central server), is a natural fit for Go's concurrency model. This talk looks at the inner workings of the protocol, how to build your own client, and concurrency patterns for performance. Bio: Tom is a Software Engineer at Megaport, working on their edge networking functions platform (written in Go). **🎤 Sam Hobson** **Compiling Go for Ancient Architectures** Some customers approached Knocknoc asking if we can get our Go agent to run on their old HPUX PA-RISC and Solaris SPARC machines, both unsupported by Go, and we took on the challenge of finding a way to make it work Bio: "I'm Sam, I'm a software engineer of a couple of years working at a startup called Knocknoc on Just-in-time network layer access control software. Please come talk to me about cool stuff you're working on!" * **Interested in speaking at an upcoming event?** We will aim to have a mix of short (\~10min) and in-depth (20-30min) talks. If you’re keen to give a talk on a topic, share a project, or idea, please let us know [bit.ly/GolangMelbourneSpeakersForm](https://bit.ly/GolangMelbourneSpeakersForm)

Our regular monthly presentation night on the second Thursday of the month from 6:30pm! Thanks to Mantel Group for hosting us again this month. If you're coming in person we're there with food and drinks from 6pm. We will be live streaming the presentations as usual from 6:30pm at [http://www.melbournecocoaheads.com/live](http://www.melbournecocoaheads.com/live) \-\-\- **Agenda** \| 6:00pm \| Food \+ Networking \| \| 6:30pm \| Event begins\. Introductions \| \| 6:40pm \| Chris Hocking — Pretending to be a coder \- Version 3: The world has changed since we last saw Chris… Codex\, Claude and burnout\. \| \| 7:15pm \| TBC \| \| 7:55pm \| Wrap up \+ social time at a nearby venue \| \* All times are approximate. Presentation order will be confirmed on the night. \-\-\-\- We are always looking for speakers and believe everyone has an interesting talk hiding inside themselves. If you are interested in letting that talk out at a future event you can get in touch on the website [https://www.melbournecocoaheads.com/talks](https://www.melbournecocoaheads.com/talks) or on Slack.

Hello everyone! Join us for an Apache Kafka® x Apache Flink® meetup on **Apr 9th from 5:30pm**, in Melbourne! The address, agenda, and speaker information can be found below. See you there! **📍Venue**: 394 High Street Northcote, Victoria 3070 \*\*\* **🗓 Agenda:** * 5:30pm: Doors open * 5:30pm - 6:00pm: Pizza, Drinks, and Networking * 6:00pm - 6:30pm: Chad Harris, Solutions Architect, Factor House * 6:30pm - 7:00pm: Stephen Ermann, Senior Customer Success Technical Architect * 7:00pm - 7:30pm: Additional Networking \*\*\* **💡 Speaker:** Chad Harris, Solutions Architect, Factor House **Talk:** Things that go bump in the night: Kafka Operational Issues and How to Survive Them **Abstract:** Most Kafka talks focus on how things should work—this one is about what actually happens in production. We’ll walk through real-world operational issues encountered with Apache Kafka and its clients, from subtle misconfigurations to full “why is everything on fire?” moments. Along the way, we’ll break down how to identify what’s going wrong, which signals actually matter, and how to approach debugging when the system doesn’t behave the way you expect. This talk will also touch on observability, common failure patterns, and practical mitigation strategies you can apply immediately. Expect a mix of technical deep dives, debugging workflows, and a few war stories (including some questionable decisions and log-staring sessions). If you’ve ever wondered whether it’s just you? It's not! **Bio:** Chad Harris is a streaming data specialist and Solutions Architect at Factor House, where he helps organisations design, scale, and operate Apache Kafka platforms using industry-leading tooling. With experience scaling Kafka across organisations ranging from small startups to some of Silicon Valley's largest companies, Chad has been working with Kafka since its early days. He brings deep expertise across both real-time streaming and data-at-rest systems, with a strong focus on practical, production-ready architectures. \-\-\-\-\- **💡 Speaker:** Stephen Ermann, Senior Customer Success Technical Architect **Talk:** From Lag to Smooth Sailing: How Queues for Kafka (KIP-932) Fix Slow Consumers **Abstract:** Slow or bursty consumers are one of the most common reasons Kafka applications end up fighting lag, over-provisioning, and operational fire drills. Traditional Kafka consumer groups work brilliantly for high-throughput stream processing, but they can make it hard to serve heterogeneous consumers, apply backpressure cleanly, or guarantee fair access when some consumers fall behind. In this talk, we’ll explore **Queues for Kafka**, the new KIP-932 feature that introduces native queue semantics on top of Kafka’s battle-tested log foundation. We’ll look at how queues decouple producer and consumer throughput, isolate slow consumers without penalising fast ones, and provide more predictable delivery and scaling behaviour for “task” and “work queue” style workloads. You’ll walk away with: * A clear mental model of how Kafka queues differ from topics and consumer groups * Concrete design patterns for handling slow and spiky consumers * Migration tips for evolving existing Kafka-based services to use queues safely If you’ve ever stared at a lag graph wondering whether to add more consumers, more partitions, or more coffee, this session will show you a cleaner path to smooth sailing with Kafka. **Bio:** Stephen Ermann is a **Senior Customer Success Technical Architect at Confluent**, working with leading financial institutions across APAC to design and operate mission-critical, real-time data platforms. With deep experience in **Apache Kafka**, **Confluent Cloud and Platform**, and surrounding ecosystems like **Kafka Connect** and **Apache Flink**, Stephen helps customers solve hard problems around scalability, reliability, and security in production. They are particularly focused on **RBAC, OAuth, mTLS, and container image security**, as well as emerging **agentic AI** patterns built on streaming data. Outside day-to-day architecture work, Stephen regularly shares practical patterns and lessons learned at meetups and user groups across the region. \*\*\* If you would like to speak or host our next event please let us know! community@[confluent.io](http://confluent.io/)

**🙋‍♀️**Welcome to our THURSDAY Social + language ​exchange meetup. Meet people from many countries and make new friends. 👉We always have between 250 - 350 people attending our THURSDAY event since this event is listed in 3 different meetup groups. 👉This is a great opportunity to learn to speak English with native and non-native speakers. Many English speakers, Europeans, Chinese, Japanese, Koreans, and other Asians attend our fun and friendly party. 👉It is suitable for international students, working holiday people, professional ex-pats, and local Australians. 🍺: Discounted 15% house beers and wines 🍸: Extra cost for cocktails and spirit 🍲: Food available is to purchase at the bar with 15% discount on menu. 👉**Fee** of **$4.50** to be paid at the entrance OR you can buy anything from the bar. No Limited numbers but RSVP is a must. 🆔 Please carry a Photo ID as you may be asked at the entrance. 👉**Location**: Diesel bar & Eatery. we book the whole Second floor, Capacity of 500 people. and the welcoming table is at the door entrance. No entry from Melbourne Central. only from 202 Little Lonsdale St.

Welcome to our Thursday Social + language ​exchange meetup. We Meet at La Di Da Weekly, 577 Little Bourke Street. **We ask that you purchase a drink at the bar or pay $3 at entry.** We always have between 100 - 200 people attending our Thursday event since this event is listed in 3 different meetup groups. Some people come early some come late, best time is between 6pm to 9pm. 👉This is a great opportunity to learn to speak English with native and non-native speakers. Many English speakers, Europeans, Chinese, Japanese, Koreans, and other Asians attend our fun and friendly party. 👉It is suitable for international students, backpackers, working holiday people, professional ex-pats, and local Australians. Find more Info; [https://instagram.com/Linguas.AU](https://instagram.com/Linguas.AU) or @Linguas.AU

Hi Radiant Ladies, Join us for a friendly lunch at the Rosstown Hotel in Carnegie! Enjoy modern Aussie pub fare, with gluten-free, vegetarian, and seniors options. Whether you’re new to Radiant Women or a familiar face, this is a perfect chance to laugh, share stories, and meet like-minded women. Come for the food, stay for the friendship — I can’t wait to see you! Julie 🌸💓

## 🇯🇵 Progressi部: Japanese-English Language & Culture Exchange 🇦🇺 **"Serious Study, Authentic Community" — 本気で学び、本気で交流する。** Join us for our weekly exchange designed for those dedicated to practicing Japanese and English. This is a space to improve your language skills, share cultural insights, and make new, like-minded friends in a respectful environment. ### 🎯 Who This Group Is For We welcome individuals who are here to **actively practice their Japanese or English**. Whether you are looking for a study partner or want to learn more about culture, this is a community for focused and meaningful interaction. **✅ 受付方法 / Event Check-in (Strictly Required)** 到着の際、必ず主催者に以下の提示をお願いします / Upon arrival, please present the following to the organizer: * **Meetupの参加申し込み（RSVP）画面をご提示ください。** / Show your Meetup RSVP confirmation screen. * **予約なし（No RSVP）での参加はお断りしております。** / No walk-ins permitted without a confirmed RSVP. * **Participation Fee: $3 CASH** Non-Japanese citizens. ### 🚫 Conduct & Safety Policy To ensure a high-quality experience for all members, we maintain a strict standard of behavior: * **Immediate Ban:** Any individual found guilty of misconduct or creating "trouble" will be banned from the group immediately.**.** * **Organizer Authority:** The Organizer reserves the right to remove any member at their sole discretion to maintain the safety and integrity of the community. * **Respectful Interaction:** All members are expected to be polite and mindful of others. Do not make fellow participants feel uncomfortable or pressured. * **Privacy:** Please respect the personal boundaries of others. Do not pressure members for private contact information. **If any member makes you feel uncomfortable, please report it immediately to the organizers: Shin, David, or Ray.** *** ### 📝 Event Details * **Time:** Saturday, 4:00 PM – 6:00 PM * **Arrival:** Please arrive **10–15 minutes early** due to limited seating. * **Entry Fee:** **$3 CASH** (Non-Japanese citizens). This contribution covers monthly meetup hosting fees. * **Photography:** Photos will be taken during the event for our community archives. ### 🇯🇵 日本語でのご案内 メルボルン市内のカフェで、本気で学べる日英言語文化交流会を主催しています。 * **目的:** 日本語・英語の練習、そして同じ目標を持つ友人作りを目的としています。 * **参加費:** 日本国籍以外の方は $3ドル（現金のみ）。 * **ルール:** 迷惑行為やトラブルを起こす方の参加は一切禁止です。主催者の判断により、即座に退会・出入り禁止の措置を取らせていただきます。 * 困ったことがあれば、すぐにオーガナイザー（Shin, David, Ray）までお知らせください。 ### 🔗 Connect With Us * **Facebook:** [facebook.com/groups/progressibu](https://www.google.com/search?q=http://www.facebook.com/groups/progressibu) * **X (Twitter):** [twitter.com/progressibu](https://www.google.com/search?q=http://twitter.com/progressibu)

Join us for a friendly and relaxed English meetup in South Melbourne! This gathering is perfect for anyone who wants to practise English, meet new friends, and feel part of a welcoming community. Whether you’re an international student, new to Melbourne, or simply looking to connect with others, you’ll find a supportive space to learn and grow. Each week, we run **two simple sessions**: **Daily English**, where you learn useful everyday vocabulary, and **Learning English from the Bible**, where we explore short passages in clear, beginner-friendly English. You’ll also meet people from different cultures and enjoy meaningful conversations in a warm, inclusive environment. Come along, make new friends, and enjoy learning English in a place where everyone is welcome. We’d love to meet you!

**English for Beginners (A1–B2): Casual Speaking Meetup** （※Mainly for people in their late teens to 20s） • You understand English… but can’t reply? • You studied for years… but still can’t speak? • You feel nervous speaking English? You’re not alone You just need a place to try This meetup is for beginners who want to actually SPEAK. ✨ Small group (4–10 people) ✨ Friendly & relaxed atmosphere ⸻ **✨ What makes this different?** We don’t just chat randomly. Everyone gets a chance to speak! • Level-based groups (A1–B2) • Pair conversations (10 min each) • New partner every round • Simple question sheets No one is left out :) ⸻ **No pressure, no judgement** Mistakes are OK ‍♂️ Speak slowly, use gestures or a translator You WILL speak — even a little! And you might actually enjoy it ⸻ **How it works (1 hour)** • Short intro • 3 rounds of pair conversations • Free chat at the end Speak a little or a lot — both are okay! ⸻ **Who is it for?** • English learners (A1–B2) • International students / working holiday • Anyone who feels shy speaking English • Young adults (around 18–30) ⸻ **About the host** Hi, I’m Yuki I also struggled to speak English before. So I created this space where beginners can feel safe and try. ⸻ **When & Where** Saturday 11:00–12:00 — Meeting Room 1 - Library at The Dock **Free (just buy a drink)** ⸻ ✨ Just come, try, and enjoy! See you there :)

**🎭 *If you can't get to Europe right now, come along to LOL at Europe's best comedians, as part of the Melbourne International Comedy Festival*** **🤣.** **\* You need to purchase your own ticket for this event for Saturday, 11 April, 7pm show ($32).** **Tickets 👉🏼 [Comedy Festival Ticket](https://www.trybooking.com/events/landing/1506332) 👈🏼** Its GA, we'll meet out front at 6:30pm and go in together. Tickets are subject to availability. If you want to come, get your's before they sell out! *Comedians of Europe* is a collaboration across the best European comedians, performing their hilarious stand-up routines right here in Melbs 🤩.

**—— Details ——** We will meet at the starting point, take round trip around the Tan and a short stroll inside the botanical garden. BYO coffee/ water bottle. Dress for outdoor walk. Come along & simply say, "Hi, it's my first time joining the group event." or ask the organiser to introduce you. You can take it slow and start from there. If you enjoy the conversations, take the initative to invite others to hang out over a bite/ drink after. **\-\-\- Running Late \-\-\-** If you are running late, please message at least 30 mins in advance. We will wait up to 15 mins before heading off. We won't be able to keep track of messages once we start. **\-\-\- RSVP / Change of Plan \-\-\-** Change of plan or decide not to attend is absolutely okay. Please do update your RSVP to "NO", so others can have the opportunity to attend. **\-\-\- Intro \-\-\-** Kudos to Friends….Expand Your Social Circle Meetup group is a community of individuals who prefer to take it slow to get to know each other overtime in Melbourne. Join us on a fun journey as we explore cafes, restaurants and bars, including drinks, meals, outings, chilling, cultural exchange, etc. Above all, we’d like to celebrate the importance of friendships. So if you are looking to expand your social circle and explore new adventures and venues in Melbourne, come join us! **\-\-\- Heylo App \-\-\-** We use Heylo App for more fluid communication, including ideas, interest groups, questions etc. Please download the Heylo app from the App store and let the organizer know if you would like to be added to the Heylo Group at the event. We will send an invite to attendees to the group. (give us some time) **\-\-\- Rules \-\-\-** Admin will only add members to the group with a clear profile picture. (No hidden behind sunglasses, masks, drawings) **You might be removed from the group in the case of…** * no show * without a clear profile picture * anti-social behaviour (i.e. acts rude / disrespectful regularly) * take advantage of individuals for personal gain(s) **\-\-\- Privacy \-\-\-** Do not disclose your contact number in this post comment. We will delete your comment/info as soon as we see it to protect your privacy.

**🙋‍♀️**Welcome to FREE FRIDAY Social + language ​exchange meetup. Meet people from many countries and make new friends. 👉We always have MANY people attending our Friday event since this event is listed in 3 different meetup groups. Some people come early some come late, best time is between 6:30pm to 9:30pm. 👉This is a great opportunity to learn to speak English with native and non-native speakers. Many English speakers, Europeans, Chinese, Japanese, Koreans, and other Asians attend our fun and friendly party. 👉It is suitable for international students, working holiday people, professional ex-pats, and local Australians.

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/

Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel. Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger. Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life. Please visit our Official Church Website (http://raysoflightchurch.com) for more information.

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

We will have our certified mediums available and you can receive 3 10-minute readings for $20. To keep you safe, we will be following all CDC and Health Dept. guidelines at our psychic fair today. Sitters and readers required to wear a mask. We will maintain a minimum of 6 foot physical distance during readings. Please, if you can, bring your own portable chair to use during your readings. Please note that we are at our wonderful new home at Unity of Columbus, 4211 Maize Road, Columbus, OH

**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** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

Let's grab some coffee/food and share a morning chat! The East Market has an ample parking lot and outdoor and indoor seating. Grab a cup of coffee from Winston's Coffee & Waffles or on your way to East Market and meet us on the second floor - table behind or east of the elevator. Per what this group is about: "Everyone is welcome! International transplants to Columbus who want to improve language skills, Columbus residents who want to discuss international travel and culture, and anyone who enjoys getting together for good conversations."

**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: Exploration of Large Language Models and Programming with Chris Pazsint 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