Decentralized Systems & Applications

✨❣️🎆🎇🧡🌟Meeting new Korean friends in Daejeon (Free only for forigners)❣️🌟🎇🎆🧡 Time: 11:00AM-13:00PM // 18:00PM - 20:00PM every week on Monday, Tuesday, Wednesday, Thursday 11:00AM-13:00PM every weekend on Saturday, Sunday 👉 We are the awesome language exchange cafe with warm and great mood, you can learn language, and culture, meet new people, and make friends a lot( Foreigners & Korean) 🎷Free drinks, snacks and parties // Learning Korean for language exchange are available. 🌆🌌❣️ ❣️Please do not judge availability by current RSVPs through Meetup cause we’re much more active on other platforms as like Instagram and generally only receive a few RSVPs via Meetup. You can make many wonderful friends here!! Let’s make great moment altogether!!🎷🍻 Place: 1066 3rd floor, Dunsan-dong, Seo-gu, Daejeon our map [https://naver.me/xDJXc1Q1](https://naver.me/xDJXc1Q1)

Korean Class at CulcomDaejeon! Want to learn Korean for free? Join our Korean Class for Foreigners at Culcom Daejeon! Schedule: Every Monday & Tuesday, 7-8 PM Fee: FREE! Location: Culcom Daejeon • Why join? Improve your Korean conversation skills in a friendly environment Meet amazing people & make new friends Enjoy monthly parties, cultural events, and one-day classes as a Culcom member! How to Join? Text 010-3310-1638 to book a consultation and get started!

✨❣️🎆🎇🧡🌟Meeting new Korean friends in Daejeon (Free only for forigners)❣️🌟🎇🎆🧡 Time: 11:00AM-13:00PM // 18:00PM - 20:00PM every week on Monday, Tuesday, Wednesday, Thursday 11:00AM-13:00PM every weekend on Saturday, Sunday 👉 We are the awesome language exchange cafe with warm and great mood, you can learn language, and culture, meet new people, and make friends a lot( Foreigners & Korean) 🎷Free drinks, snacks and parties // Learning Korean for language exchange are available. 🌆🌌❣️ ❣️Please do not judge availability by current RSVPs through Meetup cause we’re much more active on other platforms as like Instagram and generally only receive a few RSVPs via Meetup. You can make many wonderful friends here!! Let’s make great moment altogether!!🎷🍻 Place: 1066 3rd floor, Dunsan-dong, Seo-gu, Daejeon our map [https://naver.me/xDJXc1Q1](https://naver.me/xDJXc1Q1)

Sunday Tea Club was founded in Daejeon in 2023. Created as a quiet alternative to Korea’s typical drinking and nightlife culture, the club offers a calm, meaningful way to spend your Sunday afternoons. If you’ve ever wished for a slower, more mindful space to enjoy afternoon tea and gentle conversation — you’re more than welcome to join us! Participant fee 15,000won+order 1drink(The participation fee is only paid once — at your first visit. All fees are collected and reinvested into the club to purchase new teaware, high-quality teas, or ingredients for future gatherings.)

**What is a langauge exchange?** A language exchange is a relaxed social meetup where you practice languages through **real conversations with real people**. No textbooks. No grammar drills. Just talking, listening, laughing, and occasionally stumbling through sentences together. **What to Expect at Our Events** * Weekly in-person language exchange meetups * Casual, café-style atmosphere There’s always someone new to meet and talk to. **Who Comes to These Meetups?** * Both locals and internationals **How It Works** * Choose an event time * Book a spot * Show up and join the conversation That’s it. You can come alone or with friends. Running late? No problem. Join when you can, leave when you want. **Why People Like This Group** **1\. Smart Group Matching** Participants are grouped to create balanced conversations based on language level and background with optimised algorithm. **2\. Meet New People Each Round** Groups rotate every session, so you don’t get stuck talking to the same people all night. **3\. Beginner\-Friendly** Beginners are always welcome. You’ll never be forced into conversations beyond your comfort level. **FAQs** **1\. My target language isn’t very good\. Can I still join?** Yes. Beginners are welcome and grouped with others at a similar level. **2\. Can I arrive late or leave early?** Yes. The meetup is casual and flexible. **3\. Do I need to come every week?** No. Join whenever it fits your schedule. **How to Join** * Book your spot: [https://nurio.kr/](https://nurio.kr/) * Questions or help: [http://pf.kakao.com/_xmzbQn/chat](http://pf.kakao.com/_xmzbQn/chat) \-\-\- **언어 교환이란 무엇인가요?** 언어 교환은 교재나 수업 없이 실제 사람들과의 자연스러운 대화를 통해 언어를 연습하는 편안한 소셜 모임입니다. 교과서는 없고 문법 문제도 없습니다. 그저 말하고 듣고 웃고, 가끔은 문장을 더듬으며 함께 대화합니다. **모임에서는 무엇을 하나요** 주 1회 오프라인 언어 교환 모임을 진행하며 카페처럼 편안한 분위기에서 만납니다. 항상 새로운 사람들을 만나고 대화할 수 있습니다. **누가 참여하나요?** 한국인과 외국인이 함께 참여합니다. **참여 방법** 원하는 일정을 선택하고 참가 신청 후 오셔서 대화에 참여하면 끝입니다. 혼자 와도 괜찮고 친구와 함께 와도 됩니다. 늦게 와도 문제없고 원할 때 자유롭게 나가셔도 됩니다. **이 모임의 특징** **1\. 스마트 그룹 매칭** 언어 수준과 배경을 기준으로 최적화된 알고리즘을 통해 대화가 잘 되는 그룹으로 구성합니다. **2\. 매 라운드마다 새로운 사람** 세션마다 그룹이 바뀌기 때문에 같은 사람과만 계속 이야기하지 않아도 됩니다. **3\. 초보자 환영** 초보자도 언제나 환영하며 부담되는 대화에 억지로 참여할 일은 없습니다. **자주 묻는 질문** **1\. 목표 언어를 잘 못하는데 괜찮을까요?** 물론입니다. 초보자도 수준에 맞는 그룹으로 배정됩니다. **2\. 늦게 가거나 일찍 나가도 되나요?** 네. 모임은 캐주얼하고 유연하게 운영됩니다. **3\. 매주 꼭 참여해야 하나요?** 아니요. 일정에 맞을 때 자유롭게 참여하시면 됩니다. **참여 방법** 예약하기: [https://nurio.kr/](https://nurio.kr/) 문의하기: [http://pf.kakao.com/_xmzbQn/chat](http://pf.kakao.com/_xmzbQn/chat)

**NEW 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)

## Learn Infrastructure-as-Code (the FUN Way) — Through Minecraft 🎮☁️ **Joint Meetup: Azure CBUS × Columbus HashiCorp User Group × DevOps Columbus** What if learning Terraform and Infrastructure-as-Code didn’t feel like a whitepaper… but more like a game? Join us for a joint Azure CBUS, Columbus HashiCorp User Group, and DevOps Columbus meetup where **Mark Tinderholt** \(Principal Architect\, Microsoft Azure \| HashiCorp Ambassador \| “The Azure Terraformer”\) shows how **Minecraft** can be used as a surprisingly powerful way to understand real-world Infrastructure-as-Code concepts. In this session, Mark will demonstrate how Terraform and Azure can be used to provision, configure, and manage Minecraft servers—while teaching the same patterns you’d use for production cloud infrastructure. ### What we’ll cover * Infrastructure-as-Code fundamentals using **Terraform** * Provisioning real infrastructure on **Azure** * Applying **IaC best practices** (immutability, repeatability, versioning) * How playful environments like Minecraft make complex concepts *click* * Why learning through experimentation beats click-ops every time ### Who should attend * Developers, platform engineers, and cloud engineers * Terraform users (new or experienced) * Anyone curious about Infrastructure-as-Code but tired of boring examples * Minecraft fans who want to see it used in a totally unexpected way No prior Minecraft experience required—just curiosity and a willingness to learn infrastructure the fun way. Come for the blocks, stay for the Terraform. 🧱➡️📐 Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/

## Details \#\# Learn Infrastructure\-as\-Code \(the FUN Way\) — Through Minecraft 🎮☁️ **Joint Meetup: DevOps Columbus - Azure CBUS - Columbus HashiCorp User Group** What if learning Terraform and Infrastructure-as-Code didn’t feel like a whitepaper… but more like a game? Join us for a joint DevOps Columbus, Azure CBUS and Columbus HashiCorp User Group meetup where **Mark Tinderholt** \(Principal Architect\, Microsoft Azure \| HashiCorp Ambassador \| “The Azure Terraformer”\) shows how **Minecraft** can be used as a surprisingly powerful way to understand real-world Infrastructure-as-Code concepts. In this session, Mark will demonstrate how Terraform and Azure can be used to provision, configure, and manage Minecraft servers—while teaching the same patterns you’d use for production cloud infrastructure. \#\#\# What we’ll cover * Infrastructure-as-Code fundamentals using **Terraform** * Provisioning real infrastructure on **Azure** * Applying **IaC best practices** (immutability, repeatability, versioning) * How playful environments like Minecraft make complex concepts *click* * Why learning through experimentation beats click-ops every time \#\#\# Who should attend * Developers, platform engineers, and cloud engineers * Terraform users (new or experienced) * Anyone curious about Infrastructure-as-Code but tired of boring examples * Minecraft fans who want to see it used in a totally unexpected way No prior Minecraft experience required—just curiosity and a willingness to learn infrastructure the fun way. Come for the blocks, stay for the Terraform. 🧱➡️📐

OWASP is ending use of Meetup, so I built an eventbrite for the event. https://www.eventbrite.com/e/ai-development-risk-case-studies-and-how-agentic-ai-is-the-future-of-appsec-tickets-1981450622150?aff=oddtdtcreator AI is transforming how software is designed, developed, and deployed, dramatically accelerating velocity while introducing new categories of risk. As organizations adopt AI-assisted coding, autonomous agents, and increasingly complex model interactions, traditional application security approaches struggle to keep pace. This talk examines emerging AI-driven risks through real case studies from the field, highlighting issues such as insecure code generation, data-leakage pathways, model manipulation, and evolving supply-chain threats. We will explore how engineering teams must adapt their people, processes, and governance models to secure AI-augmented development workflows effectively. The session will then introduce agentic AI as the next evolution in application security—autonomous systems capable of continuous analysis, multi-step reasoning, and real-time remediation. Attendees will learn how combining agentic AI with modern practices can reduce developer friction, improve coverage, and create a future-ready application security strategy designed for the demands of AI-native software development

## Learn Infrastructure-as-Code (the FUN Way) — Through Minecraft 🎮☁️ **Joint Meetup: Azure CBUS × Columbus HashiCorp User Group** What if learning Terraform and Infrastructure-as-Code didn’t feel like a whitepaper… but more like a game? Join us for a joint Azure CBUS and Columbus HashiCorp User Group meetup where **Mark Tinderholt** \(Principal Architect\, Microsoft Azure \| HashiCorp Ambassador \| “The Azure Terraformer”\) shows how **Minecraft** can be used as a surprisingly powerful way to understand real-world Infrastructure-as-Code concepts. In this session, Mark will demonstrate how Terraform and Azure can be used to provision, configure, and manage Minecraft servers—while teaching the same patterns you’d use for production cloud infrastructure. ### What we’ll cover * Infrastructure-as-Code fundamentals using **Terraform** * Provisioning real infrastructure on **Azure** * Applying **IaC best practices** (immutability, repeatability, versioning) * How playful environments like Minecraft make complex concepts *click* * Why learning through experimentation beats click-ops every time ### Who should attend * Developers, platform engineers, and cloud engineers * Terraform users (new or experienced) * Anyone curious about Infrastructure-as-Code but tired of boring examples * Minecraft fans who want to see it used in a totally unexpected way No prior Minecraft experience required—just curiosity and a willingness to learn infrastructure the fun way. Come for the blocks, stay for the Terraform. 🧱➡️📐 Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

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.

### Tools in your AI's Toolbox : An introduction to MCP Servers The generative AI revolution has unlocked unprecedented capabilities, but the next frontier is agency: empowering models to interact with, query, and act upon the world. The current challenge is the “N x M integration problem,” where every AI model requires a custom, brittle integration for each external tool or data source. This approach simply doesn’t scale. How can we give an AI access to our sales leads, code repositories, or IoT devices in a standardized, secure, and reusable way? This session introduces Anthropic’s Model Context Protocol (MCP), the open-source framework designed to solve this challenge and become the universal connector—the USB-C port—for AI. MCP standardizes how AI models discover and use external tools, moving beyond simple function-calling to a robust, client-server architecture. We will dive into how this open protocol is creating a new ecosystem for building powerful, context-aware AI agents. Join this session for a developer-focused introduction where you will learn how to: Understand the core concepts of the open-source Model Context Protocol and its architecture. Utilize pre-built, open-source MCP servers to instantly connect AI to tools like Git, Slack, and databases. Build a custom MCP server to securely expose your own proprietary data and APIs as tools for any compliant AI. Move beyond bespoke integrations and contribute to a standardized, collaborative, and open ecosystem. Stop building one-off connectors and start building intelligent agents. This session will give you the practical knowledge to leverage MCP and create the next generation of AI that doesn’t just talk, but does. Want to be a speaker? submit your talk to our Call for Presenters!!! [https://sessionize.com/azure-cbus-2026/](https://sessionize.com/azure-cbus-2026/)