Hyperledger Fabric

It's DDD but \***lightning**\*. The evening will be a hybrid event hosted by the DDD Melbourne crew and consist of short & sharp presentations of fifteen minutes in length on a dev related subject. Venue space is limited, we cannot accommodate more than **130 people**. First come first served! **ONLINE ATTENDANCE** You can join us online, we'll aim to get the call started somewhere around 6pm before we have our introductions and first speaker. Remote audience link --> https://www.youtube.com/watch?v=octKT8vL60E You can ask questions of our speakers via Slido. We'll try to ask your questions as they come through on Slido, but we may not get to all of them. **TALKS** **Rupesh, Quality Engineer Practice Lead at Fabric Group:** Validating AI Systems in a Probabilistic World Traditional software testing assumes deterministic behavior—the same input produces the same output every time. Modern AI systems, particularly LLMs and agentic workflows, behave differently. Responses can vary based on context, prompts, model state, and external dependencies, making conventional testing approaches insufficient. This presentation explores how organisations can establish confidence, quality, and governance for non-deterministic systems through new testing methodologies, evaluation frameworks, and observability practices. It will cover emerging tooling such as DeepEval and Botium, along with strategies for measuring accuracy, relevance, safety, hallucination risk, and user experience in AI-driven applications. **Leah Garrett** My Screen Moves Now: Notes From a Web Dev Building Robot UI I went from building web apps to building the face of a robot. In this talk I'll cover what changes when your UI has a body, from testing things you can't see in a browser to designing for a screen that won't stay still, and how AI tooling helped me get up to speed. **Gordon Chen** Building a Modern eCommerce Marketplace with AI As AI capabilities advance, what role is left for developers, and what skills should we prioritise? Drawing on over 20 years of experience in software engineering and data engineering, Gordon shares his thoughts from building a modern eCommerce marketplace with AI, tackling the shift toward spec-driven development and where human elements remain critical. **@tensorfish** "Ok claude, real-time transit map of melbourne. Make no mistakes." This talk walks through building MykiMap: a live, GPU-accelerated map of every tram, train, and bus moving across Melbourne’s transit network. Along the way, we’ll get into the agentic coding workflow: what it’s genuinely productive for, and what’s just hype.​​​​​​​​​​​​​​​​ **CODE OF CONDUCT** All DDD events are subject to the DDD Code of Conduct available at [https://www.dddmelbourne.com/code-of-conduct/](https://www.dddmelbourne.com/code-of-conduct/) **VENUE AND FOOD SPONSOR** [Fabric Group](https://www.fabricgroup.com.au/) **FUTURE EVENTS** Are you interested in speaking at a future DDD by Night? That's awesome, we'd love to have you! We take speakers of all experience levels and offer training too. [Fill out this form](https://forms.office.com/r/12c0CvLwQk) and we'll be in touch. **FEEDBACK** Feedback, whether it's good or constructive, helps us grow and improve these events and so we'd love for you to fill out the form here --> [https://forms.office.com/r/MB8WGKv9Bi](https://forms.office.com/r/MB8WGKv9Bi)

In this hands-on workshop, you'll go from zero to a fully deployed multi-agent system on AWS — no prior AgentCore experience needed. We'll build a real multi-agent research assistant, step by step: \- Deploy your first AI agent using the Strands framework and BedrockAgentCoreApp — running in the cloud in minutes \- Orchestrate multiple agents with the A2A \(Agent\-to\-Agent\) protocol\, a cloud\-agnostic standard that lets agents discover and call each other securely via IAM \- Connect external tools — wire in PubMed via MCP Gateway\, deploy a citation manager as a Lambda function\, and expose your own MCP server By the end you'll have a working orchestrator agent that routes queries to a search specialist, calls real APIs, and manages citations — all running on AgentCore Runtime with proper IAM permissions and CloudWatch observability. What to bring: \- Laptop with Python 3\.11\+ and AWS CLI installed \- An AWS account \(free tier works for most of the workshop\) Skill level: Intermediate — some Python and basic AWS familiarity helpful. No prior agent development experience required.

**Unpacking Red Hat Summit 2026: OpenShift, Virtualization, and the AI-Ready Enterprise** The Red Hat Summit in Atlanta was loaded with a ton of new stuff - product launches, tech updates and real world stories. Come join us at the meetup where we have 5 speakers giving a rundown of relevant updates. * Simon will discuss AI Token Economics and AI/ML updates. * Sam will deliver an update on the Summit experience. * Ben will cover Developer News * Nick will present the OpenShift roadmap * Mohan will share several Customer Stories. Look forward to seeing you there. Pizza and drinks available early. Doors at 5:30pm for 6pm start. OpenShift Meetup team

### **The Experience** 🚀 Welcome to your new midweek ritual! **Bachata ConeXión Wednesdays** is all about connecting with purpose in a stunning, high-energy environment. Meet us at **The Third Day**—a massive, industrial-chic warehouse space in North Melbourne—for the best Bachata vibes in the city. Whether you're here for the fitness, the music, or the amazing community, your spot on the floor is waiting. *** ### **📍 Location & Time** * **Venue:** The Third Day – 290 Macaulay Rd, North Melbourne VIC 3051 * **When:** Every Wednesday Night * **The Space:** Huge dance floor, bar, and an inclusive, welcoming atmosphere. *** ### **🗓️ The Schedule** Our night is designed to take you from your very first steps to the social dance floor: * **6:30 PM – Bachata Fundamentals:** Perfect for absolute beginners. * **7:00 PM – Bachata Improvers:** Level up your basics. * **8:00 PM – Bachata Intermediate:** Master your patterns and flow. * **9:00 PM - Late – Social Dancing:** Practice what you learned and party! **(Social is INCLUDED with any class ticket)** *** ### **🎵 The Music Mix** Our DJs keep the floor burning with the perfect midweek blend: * **70% Bachata** (Sensual, Moderna, & Authentic) * **30% Salsa** (Linear & Cuban) * **+ A touch of Kizomba** to keep the flow smooth. ### **✨ First Timers: Start for FREE** New to our community? We want to welcome you! * **Your first 6:30 PM Fundamentals class is 100% FREE.** * No partner needed (we rotate throughout the class). * No experience required—we'll teach you everything from step one. *** ### **🎟️ Pricing & Tickets** **All tickets are available at the door!** No need to pre-book, just show up ready to move. * **6:30 PM Class:** $11 * **Single Class (7:00 PM or 8:00 PM):** $21 * **Double Class Pass:** $31 * **Social Only (from 9:00 PM):** $16 ($11 after 10:30 PM) *INSANE Card holders enjoy exclusive class & social deals!* *** ### **📲 Stay Connected** Follow us on Instagram to see our daily stories and get a sneak peek at the vibe before you arrive: 👉 **Instagram:** [@bachataconexion](https://www.instagram.com/bachataconexion) **Ready to dance? RSVP now and join the family!**

6pm start. $2 gold coin entry per person. Please order dinner at the bar when you arrive and let the staff know you are with the card group in the Dining Room. Meals are served around 7:15pm. Happy Hour drinks are available until 7pm. After a dinner break we shuffle the teams around so you get to meet, and play with new people. Games are played as 4 handed wherever possible, but an occasional 3,5 or 6 handed game is required based on the number of attendees. If you are a beginner or have minimal experience playing 500, please let your host know before starting a game, and feel free to ask them any question. Ahead of the event you might like to download one of the 500 card game apps on your phone to get familiar with the game. There are also some Youtube videos.

Join us for an engaging evening at the next Melbourne Databricks User Group Meetup! We have a great line up of speakers for the night who will be sharing their learnings from implementing Lakebase on Databricks as well as a talk on Transforming Water Utility Operations with AI. **Speakers;** * **Shreya Sharma**, Solution Architect at Databricks: *A tour of Databricks' serverless Postgres for operational apps and AI agents and the headline features (branching, autoscaling, scale-to-zero, horizontal reads). Then a rundown of what's shipped in the last few months — Lakehouse Sync (Postgres → Delta CDC), scale-to-zero as the default, customer-managed encryption keys, and OTLP metrics/logs.* * **Derek Huang,** Solution Architect at Databricks: *Transforming Water Utility Operations with AI: from Reactive Monitoring to Real-Time Intelligence* Why Attend? The Databricks User Group is your chance to: * **Learn from experts**: Hear about the latest Databricks developments and best practices directly from industry leaders and experienced practitioners. * **Network with peers**: Connect with other data professionals in Melbourne who are passionate about data, AI, and analytics. * **Share knowledge**: Engage in discussions, ask questions, and exchange ideas with other members of the community. Event Details: * **Venue Host**: Vivanti Consulting, Level 20, Tower Five, 727 Collins Street, Docklands, VIC 3008 * **Date:** Thursday 11th June, 2026 * **Timing**: 5:30pm-8pm * **Catering and Drinks provided** RSVP today to secure your spot and feel free to invite colleagues or friends interested in Databricks and data-driven innovation. We look forward to seeing you there!

🧵 **Beyond the Label: Layers (Fabrics Edition)** Understanding the stories, materials and certifications behind the products we use every day. As Melbourne settles into winter and we’re all reaching for a few extra layers, we’ll explore the fabrics that make up our wardrobes — and how they influence comfort, quality, and the choices we make when shopping. **Join Eco Impact Tribe** for a relaxed afternoon of coffee, conversation, and connection. We’ll compare different fabric samples, share simple insights, and open up a casual discussion in a welcoming, informal setting. No lectures, no guilt, and no fashion expertise required. Just curious minds, good coffee, and great conversation. 📍Meeting Point: **Three Bags Full, 60 Nicholson St, Abbotsford VIC 3067** ☕ Plan for the afternoon * **1:15 PM** — Arrival, coffee & casual introductions * **1:45 PM** — We gently dive into the conversation and fabric exploration * **2:45 PM** — Wrap up and finish (café close / table release) To support the venue, please buy a coffee and/or snack during the event. \* By joining this event, you participate voluntarily and are responsible for your own wellbeing. A few photos may be taken for community sharing. If you’d prefer not to be included, just let the host know at the start. **Whether you’re interested in sustainability, conscious living, or simply learning something new, you’re warmly welcome.**

Hi Gophers! We're at Atlassian this June to talk carbon footprint calculations for Claude and building a custom Kubernetes PaaS in Go. * **Agenda** **5.45pm — Food & Networking** **6:30pm — Intro** **6:45pm — Talks** **8.00pm — Wrap up then head out for kick ons** * **Talks** **🎤 Mia de Búrca** **What I Learnt Writing a Carbon Awareness Skill for Claude** (short talk) Having recently left my senior IC job in tech, I wanted to take some time to pursue green software principles, in **particular** how they apply to our use of AI. Since I'm an engineer, and engineers learn by doing; I decided to build an MCP server using sustainable software practices, and have it serve up a skill that would let an LLM ask what **its** carbon footprint had been for the conversation so far. The talk describes what I built and why, and how the implementation **and** infrastructure were a breeze **compared** to finding some real numbers to back up the carbon equivalence calculation. **🎤 Ryan Djurovich** **How I built Podplane - an Open Source PaaS running Kubernetes on Object Storage** About Podplane: Want to deploy your app easily and securely on AWS, Google Cloud, or Proxmox? Podplane is an Open Source Platform-as-a-Service built on Kubernetes with all state stored in Object Storage. It consists of a CLI, etcd alternative ([netsy.dev](http://netsy.dev)), auth server ([easy-oidc.dev](http://easy-oidc.dev)), and next-gen auto-scaler ([nstance.dev](http://nstance.dev)) - all written in Go. \* **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)

Let's drink to **Internet Money and the quiet revolution**! Come and meet like-minded people and learn about bitcoin. This night is for newbies and regulars alike (don't worry, we don't bite!). Note that this is a very informal event, so you may need to ask the bar staff to find where the group is. There are no speakers or activities, just a casual pub session. \*NOTE: The Fox Hotel accepts Bitcoin via the lightning network, so come with sats! An easy way to get started is to download a compatible wallet, for example Wallet of Satoshi. This is the regular monthly pub session for the Melbourne Bitcoin community. We recommend new comers check out https://bitcoin.rocks/ and https://bitcoin-intro.com Find out more by visiting our telegram chat channel: https://t.me/btcmelbourne *(yes, telegram is not our favourite solution, but it's stuck so far)*

Welcome to WWDC Week! As is tradition, Apple has scheduled WWDC to coincide with our June monthly presentation night, so join us this Thursday for the post-WWDC discussions. 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 \| Marcelo Esperidiao — WWDC Recap \| \| 6:50pm \| Luke Tupper – Supercharging multi platform development \| \| 7:20pm \| Panel discussion on the announcements at WWDC \| \| 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.

We are meeting in the board-room of the 55th floor of 318 Russel Street (The Abode). I'll be in the lobby till about 10 past, if you arrive late call me on 0447 591 141 and I'll come down and get you. Join the group chat via https://imagineering.cc/ ## **🛠️ Meetup Format (2 hours)** **⚡ Project Intros (5 minutes total)** Each participant gets **1 minute (hard stop)** to briefly share: * What they’re building * What they want to focus on today **🚀 Build Sprints (90 minutes total)** We’ll run **three focused build cycles**: * **25 minutes** of deep, uninterrupted building * **5 minutes** of casual chatting, sharing progress, and asking questions **🎤 Demos & Wrap-up (10 minutes total)** Each participant gets **1 minute (hard stop)** to: * Demo what they built * Share learnings or next steps This format balances **deep focus**, **collaboration**, and **show-and-tell**, while keeping things lightweight and fun.

**Melbourne Python's Meetup June 2026!** Join Melbourne’s Python community for another night of learning, sharing, and connecting. Whether you’re just starting out or you’ve been coding in Python for years, our monthly meetup is the perfect place to learn something new and connect with fellow developers. This group is for developers, data scientists, web programmers, and anyone passionate about Python. 📅 **When:** 5:30 PM, Thursday, June 11, 2026 📍 **Where:** Judo Bank, Queen and Collins Building Level 26/376-390 Collins St, Melbourne VIC 3000, Australia 👉 [https://maps.app.goo.gl/A9JQTYGrMqGn8AzAA](https://maps.app.goo.gl/A9JQTYGrMqGn8AzAA) **Note:** The entrance is next to Rustica Cafe. Press level 26 when you arrive, and you'll find us there! **Agenda for the Evening** **5:30 - 6:00 PM**: Networking **6:00–6:15 PM** : Welcome and logistics 🎉 **6:15–6:45 PM** - **Talk 1:** Javier Candeira - Principal Consultant at Infoplumbing on TypeScript for Pythonistas / Python for TS Devs. In this session, Javier will share cheatsheet-centric and concurrency-focused look at the similarities and differences between Python and TypeScript, aimed at developers who regularly switch between the two languages **6:45–7:00 PM**: Break – Connect with someone new! **7:00**–**7:30 PM** \- Abhijeet Kumar on Beyond RAG: Building an Agentic "Second Brain" with FastAPI\, pgvector\, and Gemini\. This talk explores Project NeuralFortress — a Python\-based knowledge management system that evolves beyond traditional RAG approaches using FastAPI\, Neon PostgreSQL with pgvector\, and Google Gemini for cognitive processing\. **8:00 PM**: Event concludes 🌟 **Special Thanks** 🌟 A huge shoutout to our sponsors **Judo Bank**, **AWS** and **Neo4j** for making this meetup possible. Your support means the world to us! **Interested in Speaking or Sponsoring?** We’d love to hear from you! Email us at **melbournepython@gmail.com** or fill out our speaker interest form at https://forms.gle/S5T1SL4ULY5aogf47. We can't wait to celebrate Python and the incredible Melbourne community with you. See you on June 11! 🎉

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

We meet to learn and practice American Sign Language and to grow our familiarity with Deaf culture. Facilitated by hearing folks (with a connection to a professional interpreter) using Deaf-created content. People of all ASL skill levels are welcome! As we learn, we hope to connect more with the Deaf community in Central Ohio. Join us as you're able! Come regularly or just once - whatever you're looking for! Each meetup will explore different topics related to ASL/Deaf culture, and will feature time to practice conversation with one another. Just bring yourself and a willingness to learn!

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.

**\*\*\* 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)

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)

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

Title: Smart Search + AI: An Outcome-Driven Journey from IDP to a Suite of AI Register at the Columbus AWS meetup: [https://www.meetup.com/columbus-aws-amazon-web-services-meetup/events/313426379/](https://www.meetup.com/columbus-aws-amazon-web-services-meetup/events/313426379/) 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