C#

Hi! If you would like to setup a Bible study but are timid to walk into a church building or be surrounded by a lot of people, we understand. To set up a one-on-one (or a small group if you and a friend or loved one want to talk together), please message us and we can setup a time. We are mainly available on Sunday nights and Tuesday nights, but we will work around your schedule. Your questions and curiosities matter :) You can also dm me on Instagram (@lydiashill) to setup a time and place. We live in Acropolis area but are willing to travel to meetup with you at a coffee shop closer to you. Just let us know!

**EXTERNAL REGISTRATION NEEDED** 🍕Pizza & Pitch Night is back at The Base by CyprusInno for its 2nd edition 💥 Got an idea you want to test? Curious to hear what others are building? Or just here for the vibes, pizza, and community? We’ve got you. Join us for an evening of lightning-fast pitches, delicious pizza, and meaningful connections with founders, creatives, and changemakers. What to expect: 🎤 Quickfire founder pitches 🍕 FREE pizza (while it lasts!) 🎶 Music, drinks & good vibes 🤝 Networking with an inspiring community 📍 Where: The Base by CyprusInno 🕕 When: Thursday, 26 February, 19:00–21:00 🎟️ Entry: Free (spots are limited — first come, first served!) 👉 Register by 24 February to save your spot https://tinyurl.com/pizzaandpitch2 Know someone who should be there? Share the news with fellow entrepreneurs! 🚀 Will you join us for round two? 👀

Hi! If you would like to setup a Bible study but are timid to walk into a church building or be surrounded by a lot of people, we understand. To set up a one-on-one (or a small group if you and a friend or loved one want to talk together), please message us and we can setup a time. We are mainly available on Sunday nights and Tuesday nights, but we will work around your schedule. Your questions and curiosities matter :) You can also dm me on Instagram (@lydiashill) to setup a time and place. We live in Acropolis area but are willing to travel to meetup with you at a coffee shop closer to you. Just let us know!

[@bhava.yogastudio](https://www.instagram.com/bhava.yogastudio/?hl=en) and [@movexmeditate](https://www.instagram.com/movexmeditate/?hl=en) are excited to host another movement meditation workshop on Saturday, February 28th. This workshop is for you if: 🧘You want to explore a new way of meditating 😮‍💨You are curious about how functional breathing can reduce stress and enhance performance (for athletes, but not only) 🫶 You are looking for a safe place to release tension and enjoy inner peace No previous experience in meditation required but, Prebooking is required- only 8 spots available. https://bhava.studio/book-online# Where: Bhava Yoga Studio When: February 28th, [@10](https://www.instagram.com/10/?hl=en):30-12:00 Cost: €15 (yoga mats, blankets, bolsters, notepads for journaling will be provided - just bring your water bottle!)

**EXTERNAL REGISTRATION NEEDED** 🍕Pizza & Pitch Night is back at The Base by CyprusInno for its 2nd edition 💥 Got an idea you want to test? Curious to hear what others are building? Or just here for the vibes, pizza, and community? We’ve got you. Join us for an evening of lightning-fast pitches, delicious pizza, and meaningful connections with founders, creatives, and changemakers. What to expect: 🎤 Quickfire founder pitches 🍕 FREE pizza (while it lasts!) 🎶 Music, drinks & good vibes 🤝 Networking with an inspiring community 📍 Where: The Base by CyprusInno 🕕 When: Thursday, 26 February, 19:00–21:00 🎟️ Entry: Free (spots are limited — first come, first served!) 👉 Register by 24 February to save your spot https://tinyurl.com/pizzaandpitch2 Know someone who should be there? Share the news with fellow entrepreneurs! 🚀 Will you join us for round two? 👀

**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** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA

On Thursday, March 12, 2026, we will meet at the TEKSystems offices at 700 N Hurstbourne Pkwy. Doors will open at 6:00 p.m., and the presentations will begin sharply at 6:30 p.m. Along with an excellent presentation, TEKsystems will provide food. Please RSVP so we know how much food to order. Afterward, we will go to Brick House Tavern for drinks and food to continue the conversation. The session will also be broadcast at https://twitch.tv/TaleLearnCode. ### Much Ado About Nullable - C# Nullable Reference Types Explained In 2019 (C# 8.0) Microsoft introduced a feature that has generated a lot of confusion, debate and outright dissent. I'm talking about Nullable Reference Types. In this presentation, I we dig into this feature, explore why it exists, what problem it tries to solve, how it works, and how people have critiqued it, so that you as a programmer can decide if and how you want to use it.

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/

We will show a variety of methods for building agents that run in Microsoft Foundry. This covers the different types of agents: Prompt, Multi, and Hosted, as well as the development lifecycle using evals and traces.

Meeting @ Improving's office in Downtown Columbus, near Cosi. Parking is paid, food & drink are free! This time we're hanging out after the long winter break. We are going to look at a group-member's project used to help learn the fundamentals of Go, and if time allows, we can take a look at how we like to build Go projects using AI.

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

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!