Software Security

Welcome to our second London meetup of 2026, where we discuss Gen AI and Kubernetes! Details below: **Location:** Civo Tech Junction, First Floor, 32-37 Cowper St, London EC2A 4AW **Time:** Doors open at 6PM **Drinks, snacks, talks, and networking.** We’re excited to invite you to our second in-person **DevOps Society Meetup** of 2026, proudly **sponsored by Cast AI**. This event is focussed around Gen AI and Kubernetes, with two really exciting speakers lined up for this one in Carly and Kunal. Format of the Meetup: 6:00pm – 6:30pm — Networking on arrival, with food and drinks provided by CastAI 6:30pm – 7:10pm — First speaker + Q&A 7:10pm – 7:20pm — Break for refreshments and networking 7:20pm – 8:00pm — Second speaker + Q&A 8:00pm onwards — More networking at the venue, then at a nearby pub. *Timings can vary slightly depending on Q&A.* We’re excited to welcome everyone to our next DevOps Society London meetup, where we’ll be diving into two incredibly relevant topics in modern infrastructure: observing GenAI applications in production and optimising Kubernetes clusters. We’ll be joined by two brilliant speakers from the ecosystem who are working at the forefront of developer tooling and cloud infrastructure. As always, expect a relaxed evening of technical learning, discussion, and networking with fellow engineers from across the London tech community. *** ## 🎤 Speaker 1 - Carly Richmond **Developer Advocate Lead @ Elastic** ### Observing AI Applications with OpenLit and OpenTelemetry Observability is the ability to measure the current state of a system. With the rapid emergence of LLMs and GenAI applications moving into production, teams now need deeper insight into how these systems behave in real-world environments. In this talk, Carly will explore best practices for observing production AI applications, covering how engineers can capture logs, traces, and metrics to better understand how LLMs interact within their application ecosystem. She’ll walk through a real example of instrumenting an AI agent application written in TypeScript, using OpenLit to generate OpenTelemetry signals. The session will show the types of telemetry data teams can capture to identify usage patterns, detect errors, and troubleshoot issues commonly seen in production GenAI applications. ### About Carly Carly Richmond is Developer Advocate Lead at Elastic, based in London. She’s a UI developer who also writes backend services, a keynote speaker, and a tech writer who is passionate about helping developers build better systems. Outside of tech, Carly enjoys cooking, photography, drinking tea, and chasing after her young son. *** ## 🎤 Speaker 2 - Kunal Kushwaha **Senior Developer Advocate @ CAST AI** ### Optimizing Kubernetes and Unlocking Blockers with Container Live Migration Kubernetes promises automation, yet most clusters run at around **10% CPU utilisation**, leaving large amounts of infrastructure sitting idle. With endless instance types, constantly shifting prices, and the complexity of modern workloads, maintaining efficient clusters can quickly become a full-time job. In this talk, Kunal explores the real-world challenges teams face when running Kubernetes in production. He’ll cover where Kubernetes automation works well, where it falls short, and why optimisation remains difficult for many teams. Topics include: * Why most Kubernetes clusters are underutilised * The realities of autoscaling in production environments * Challenges around instance types and Spot capacity * Common mistakes teams make with HPA and VPA Once these challenges are laid out, Kunal introduces Container Live Migration as a way to overcome some of these long-standing blockers. To bring the concept to life, he’ll run a live technical demo where Pods running a small video game are migrated across nodes in real time, while the audience participates. The game continues running without downtime, demonstrating how live migration can improve cluster efficiency without disrupting workloads. Please register below to secure your spot. Spaces are limited and available on a first-come, first-served basis. We’re really looking forward to getting the community back together again for our first event of 2026. [Our slack community](https://join.slack.com/t/devopssociety/shared_invite/zt-3mswuylw7-MhJg1IZ70rX_GpJTluG2Cw) \- join in and introduce yourself\! [Our Youtube Channel ](https://www.youtube.com/@DevOpsSociety)for regular podcasts with DevOps professionals + more DevOps content. [Website](https://thedevopsociety.com/) [To partner with us](https://thedevopsociety.com/partnerships) CAST AI website - https://cast.ai/ Thanks! From the DevOps Society team [Ben](https://www.linkedin.com/in/benwhitmarsh/) and [Vytas](https://www.linkedin.com/in/vytasdevops/)

We are excited to announce our upcoming Spring Community Showcase. This event is an opportunity for individuals at all skill levels to come together and share their experiences with Rust. Whether you’re working on a personal project, contributing to an open-source initiative, or teaching a concept related to Rust, we invite you to present your work and insights. Take this opportunity to build your confidence and share what you are doing. Speakers === If you would like to give a presentation, please send Ernest a direct message with your talk title and a brief abstract of approximately 60 words. Each presentation will last about 25 minutes, followed by 5 minutes for questions and answers, for a total of 30 minutes. We have four slots available this month. **Dan Groshev** Okmain Library: You have an image, but you want a colour How do you pick a colour that represents an image but also looks good? Dan will talk about his Okmain library, colour science, auto-vectorisation, SIMD, and his experience building it in Rust and PyO3. **Jérôme Étévé** Mockapot: A percolator library in Rust Jérôme is the author of the Mokcaccino library, which started as a way to marry my interests for Rust and for search technology. He will discuss the design, the tricky aspects of Rust he learned along the way, and how Rust and Python complement each other. **Evadne Wu** JavaScript Sandboxing using Deno on top of Elixir & Erlang/OTP. Intelligent AI agents can write code that calls existing APIs in secure sandboxes, allowing higher token efficiency, better performance, and lower per-turn latency. Deno’s primitives in Rust can be integrated into such an agent harness, utilising the Elixir programming language and the Erlang/OTP runtime, which allows you to construct agentic systems that are massively concurrent and fault-tolerant.

Getting angry might feel justified but, what’s the price we pay for getting angry or when we bottle it up? And how does it affect not just us, but the people and environments around us? This two-week course dives into: * both the visible and hidden layers of anger, how it works and its effects * tools for turning anger into constructive, empowered responses * strategies for staying cool and calm **This is the beginning of a free, two-session, in-person seminar, with each session lasting 60 minutes.** **If you would like to make a voluntary donation, please click** [here.](https://www.innerspace.org.uk/donations/ "https://www.innerspace.org.uk/donations/") \* I consent to my submitted data being collected and stored. We will process your personal data in line with the GDPR requirements and always store it securely and use it only for the purpose for which it has been collected. We will not pass on your details to any third parties without your consent.

\*\*Fadi K & F K Dance team - present The best Salsa Night the UK has ever seen. **With FREE INTRO SALSA CLASS at 7:00PM** & Free Entry All Night !! Classes 7:00 PM - FREE INTRO TO SALSA CLASS This Class is an introduction to our regular 2 hours salsa classes run every Thursday 7:30 & 8:30 **CROSS BODY SALSA** 7:30 Level 1 & Level 2/3 8:30 Level 1, Level 2 & level 3/4 Beginners / improvers / intermediate **Teachers** ▪️Fadi K & Cristina Varga ▪️Camy Marina ▪️Tiffany Salsera ▪️Chris diamond ▪️F K Dance Team & Guests on Rotation DJs ▪️ Fadi K & Guests on rotation PRICES £10 FOR 1 CLASS £15 FOR 2 CLASS A night brought & created by dancers to the dancers. Great dance floor / Happy hour / ultimate location & late party till 11am. More info 07907945534

**Please make a reservation on [dayofus.com.](http://dayofus.com./) This is a paid event.** DayOfUs brings strangers together for unforgettable dinners. Every week, we curate group dining experiences at great local restaurants — you + five new faces. No awkward planning, no group chats that go nowhere — just good food, good vibes, and conversations that matter. ### **Here’s how it works:** 1. **Take our quick quiz** in the DayOfUs app to share your preferences. 2. **We match you** with a group of like-minded people. 3. **We book the restaurant** — you simply show up and enjoy. 4. **You leave with new friends** (and maybe a new favorite restaurant). ✨ **Not a dating app** – we’re all about human connection and building friendships. ### **Why Join Us?** * **Effortless** – We handle all the planning. * **Fresh every week** – New people, new restaurants. * **Personality-based matching** – Not just random pairings. * **Local & traveler friendly** – Whether you’re new in town or just looking to meet more people. **📅 This listing is for awareness only — bookings are made through our app or website.** ✅ **Join today and get 10% off your first dinner** with code: **MEETUP10** **Download the Day of Us app**: [App Store Link](https://apps.apple.com/us/app/day-of-us-meet-new-friends/id6748222136 "https://apps.apple.com/us/app/day-of-us-meet-new-friends/id6748222136")💻 **Or sign up on our website**: [dayofus.com](https://www.dayofus.com/?utm_source=eventbrite&utm_medium=post&utm_campaign=toronto&utm_content=diningtable "https://www.dayofus.com?utm_source=eventbrite&utm_medium=post&utm_campaign=toronto&utm_content=diningtable") Your registration does not include your individual food and drink purchases. You will pay for your own order. ## **FAQ** **Do I pay here on Meetup?** No — we don’t take bookings here. Please sign up through our app or website to join a dinner. **Is this a dating event?** Nope! Our focus is on genuine friendships and expanding your social circle. **Do I need to come every week?** Not at all. You join whenever you’re free and feel like meeting new people. **Refund Policy** Refunds are available when you cancel at least 48 hours before your scheduled dinner (handled through the app).

**About this event** Whether you've just heard about OpenClaw or you've been running it for a while, come along and meet your people. This is a relaxed, informal get-together for beginners and experts alike — no agenda, no pressure, just good conversation and a shared love of OpenClaw. Bring your laptop, chat with new friends, swap ideas, and build stuff together. **Cost** Free — no tickets, no fees, just show up.

We will revise the basic grammar of the Arabic language. The book, **Arabic Verbs & Essentials of Grammar**, by Jane Wightwick (Third Edition), can be purchased from Foyles or Waterstones or online. [https://www.hatchards.co.uk/book/arabic-verbs-and-essentials-of-grammar-third-edition/jane-wightwick/9781260030990](https://www.hatchards.co.uk/book/arabic-verbs-and-essentials-of-grammar-third-edition/jane-wightwick/9781260030990) We will cover chapter one. Level: beginners, but you must already be able to read the alphabet. This is a monthly event. Note: to make the most of this session, you should read the chapter before hand. Anything you do not understand, we can discuss during the session

Kick off your week with music, movement, and great vibes. Come solo or with friends—no partner needed! **Schedule (This Sunday):** • 6:30 PM – Free Bachata Taster • 7:00 PM – Bachata Classes (3 Levels) • 8:00 PM – Salsa Classes (3 Levels) • 9:00 PM–12:30 AM – FREE Social Dancing (Salsa, Bachata, a touch of Kiz) **What to expect:** • Friendly teachers, clear level splits, and lots of practice time • Great music and a welcoming crowd for all levels—absolute beginners to improvers • Central location, easy transport, and good vibes all night **Why social dancing is good for you:** Social dancing is a fun workout that boosts your cardio, coordination, and posture—without feeling like “exercise.” It reduces stress, fires up your brain with musical timing and footwork patterns, and improves confidence through gentle challenges and quick wins. Dancing with different partners builds connection, empathy, and communication skills (you literally learn to “listen” with your body). It’s also an incredible way to make friends and feel part of a community—one song at a time. Good to know: • No partner or experience required • Wear comfy shoes, bring water, and arrive a bit early for level check-in • Classes start right on time—don’t miss your warm-up! Price: £10 one class £12 two classes 6:30 PM class is FREE intro to bachata RSVP now so we can plan levels and floor space. See you on the dance floor! 💃🕺

Wine Not? is a women-only gathering before the Balancers Saturday social. Most attendees come solo, so it’s an easy and welcoming place to meet people and settle in before the night gets busier. London can make meeting new people feel awkward, especially if you're coming alone. This early social creates a comfortable environment where you can chat, laugh, and get to know a few friendly faces first. Expect a relaxed atmosphere, a few light games, and plenty of time to connect naturally. Around **8.30 pm the main Balancers social begins**, and the room fills as over **150 people usually join the night**. Wine Not? naturally flows into the rest of the evening, so you’re welcome to stay and enjoy the full experience. Coming solo is completely normal. Our hosts will be there to help everyone feel comfortable, included, and connected from the start. **Check out our past events here:** **[https://www.instagram.com/_balancers/](https://www.instagram.com/_balancers/)** **Want to stay in the loop? Join our WhatsApp community: [https://chat.whatsapp.com/IJKXDkwUTlmDsYTOCIUg7O](https://chat.whatsapp.com/IJKXDkwUTlmDsYTOCIUg7O)** *Remember, our pillars are Openness, Respect, Kindness and Authenticity. Attendance at this event is subject to our [Code of Conduct](https://www.balancers.app/code-of-conduct) and [Terms of Service](https://www.balancers.app/term-of-service). By joining, you may receive emails about Balancers events and community updates. You can unsubscribe at any time.*

We playtest all sorts of games - strategic, silly, creative, or whatever. Some games are almost done. Some are very early ideas. We test anything that will fit into 90 minutes. You don't need to bring a game - we always love to have new playtesters! Please let us know in the comments when you plan to arrive/leave and whether you are bringing a game or not. This helps us to plan the day better. The schedule is: 10am onwards - gathering, chatting 11am sharp - playing for 90 min ('slot 1') 12:30ish - break for food/chat 1pm sharp - playing for 90 min ('slot 2') 2:30ish - break for food/chat 3pm sharp - playing for 90 min ('slot 3') 4:30ish - finish up Often, we might hang around afterwards, to play some already-published games. We are strict on timings, so please try to arrive a few minutes before the session to limit disruption. You can just come for part of the day if you wish. The reason we have fixed timings for the 3 'slots' is to make it easier for folk to do so. Designers of all levels of experience are welcome! But if it's your first time, we ask that you don't bring a game and just spend some time learning how the group works. The group works based on reciprocation. If you expect to test your own game, make sure stay for long enough to play other games. As a general rule of thumb, you can expect to play one of your own games every third 90-minute session. So if you stay a whole day (3 sessions), you can expect to have one session to play your game(s). A good rule of thumb is that if you come all day, you will have one 90 minute session with two other playtesters in which to test your own games. It is sometimes possible to test games with more players. If your game requires 4 or more, please note that as standard you will be allocated half of a session (45 minutes). Pre-covid, we were getting unmanageable. As a result, we may have to limit attendees. This is a free-to-use venue, and we have to be mindful that other folk want to use the same space. Please note: This is an adults only event. We look forward to seeing you!

Time is precious. Here we value non-boring valuable chats and interactions that are fully engaging, soulfully enriching, inspiring, and leave you a bit wiser than when you arrived. In that spirit (mind the pun!), today’s fully hosted laid back social coffee chat will offer a perfect haven for the inquisitive & curious - those drawn to the mysteries of the universe, life and everything in between. A tasty caffeine infused fun afternoon of thought-provoking causal chats exploring spirituality/consciousness and related interconnected topics spanning **philosophy,** **neuroscience**, **parapsychology,** **paranormal.** **cosmology** and **noetic sciences** over a mug of sweet coffee (or amazin value Chardonnay!) Chaired by me - a former Reuters journalist & published empirical researcher exploring spirituality topics in pursuant of the "truth" since a teenager, there'll be no strict structure - a relaxed friendly space to openly chat, exchange ideas & experiences without judgement, but I'll preside to promote inclusivity and zone in on specifics to avoid people digressing onto unrelated tangents to ensure like all of our events - particpants derive maximum utlity and engagement from attending. We’ll touch on everything from the limits of scientific understanding to exploring the unexplained using practical fun exploratory divination practices drawing on elements of **psychology, metaphysics, epistemology** and **statistical** **probability** of rare events as we do so. Whether you're a practicing "spiritualist", a curious skeptic, or just someone who loves deep conversation on **life’s big questions**, you’ll hopefully walk away more enlightened with some practical tips you can start applying and inspired to explore more! As well as illuminating chats to guide self-reflection, obviously no sprituality event woul be complete without practical tools so there'll be FREE Tarot & I-Ching readings, demonstrations of meditation method to activate super powerful gamma brain waves, and pyschic tests for a bit of fun, laughter & intrigue! **Sample of conversational threads** might include: Are we mere organisms pursuing biological survival or does consciousness exist beyond neurons firing in our brains? What explains peoples' paranormal experiences? What would reality look like If our brains were limitless? Declassified CIA files show that as as well as mind control experiments, the US govt employed mediums and remote viewers. If all mumbo jumbo then why? Is Nirvana just a fantasy of deluded people? Does everything happen for a reason? To clarify - we define spirituality here as an exploration of consciousness, Donald Rumsfeld's unknown unknowns and undiscovered aspects of reality, NOT religion. After all, as my philosophy professor once rightly postulated to me: "If God created Adam, who created God Lucas?" Yep - that inconvenient flaw **debunks every fairytale religion** out there including the oldest religion of them all - paganism - so why is witchcraft still practised outside of **Hogwarts** today? I may also share the latest peer reviewed empirical evidence surrounding **paranormal** and **consciousness** phenomena. **=== POTENTIAL CONVERSATION STARTERS ===** 1. Does consciousness survive death or is Cambridge Astrophysics Professor Brian Cox right in asserting if **ghosts** existed then particle accelerators at CERN would have already detected ghost molecules making Ouija boards kids play? Are Poltergiests 100% hoax? Brain scans indicate thalamocortical circuits in our brain (pathways in the parietal cortex & central lateral thalamus) drive **consciousness -** so how can spirit/mind live on after **brain death**? 2. Is **synchronicity/coincidence** simply randomness disguised in the eye of the beholder or can what Einstein called “spooky action at a distance" (quantum entanglement) explain it? Molecular Biologists have shown that just like plants - our cells give off resonant frequencies between 10 & 180 kilohertz - could this be a source of non-verbal communication like telepathy? 3. Given **neuroscience**'s infancy with much yet undiscovered - could mediation help access functions outside of our BAU alpha & beta brain wave states? Can **Kundalini yoga** boost **DMT** (dimethyltryptamine) naturally vs drugs like ayahuasca, mushrooms, LSDand if so by what mechanism? Do the artifically created neural signatures using magnetic stimulation observed during mystical experiences debunk them? Is the Maharishi Effect real? 4. Are clairvoyants and mediums just good people readers or are they really able to access time and space in non-linear ways? Is Tyler Henry the real deal or just faking it? Was **Abraham Lincolm** precognizant when he dreamt his own fatal assignation? 5. The laws of statistical probability, Drake Equation & common sense tells us there is other non-microbial life out there. So what explains the Fermi Paradox? Was that 1976 WOW signal aliens? How about the recent strange bahaviour of Boyajian's star or Oumuamua/Atlas interstella object that has just entered our solar system? 6. Could metaverse explain deja vu & reincarnation vs theories from the **psychology** literature (Mandela Effect?) or do we just live in a **simulation** as **Elon Musk** proposes? 7. **Stephen Hawking** once said: "The past, like the future, is indefinite and exists only as a spectrum of possibilities" If matter only manifests when observed as the double slit experiments shows, does that mean everything is consciousness? Does the discovery of *quantum superposition /* disappearing neutrons imply **parallel universes**? 8. Do NDEs suggest something beyond physicality? Were Steve Jobs final words "Oh wow. Oh wow. Oh wow" before he died (New York Times) visions of an afterlife or just neurochemical changes / drugs playing tricks? 9. Can photons omitted by our bodies explain auras that people see? 10. Could limits in our understanding of quantum physics, space and time explain paranormal experiences? 11. What existed before the **big bang** \- how do you get something from "nothing"? I believe our reality is the product of a black hole\. What you reckon? ***So how do we get to the "truth"?*** Both in my journalism days and applying the most advanced empirical research techniques in my client consulting work - it becomes clear the truth is often elusive. No matter how much we triangulate evidence - we can only provide part answers. "All models are wrong, but some are useful" George Box What we think we know and reality diverge leading to that great **paradox of knowledge.** And as the boundary between knowns and unknown converge, we end up with cognitive dissonance and more questions. In that spirit - every credible philosopher & scientist acknowledges - we'll never get to the complete truth but could **experimental methods** get us closer to it? A balanced approach guided by Immanuel Kant's pragmatism and Aristotle's deductive reasoning seems the most rationale framework here but are there any other methodologies? How about the **"spirituality"** toolkit? **=== RENDEZVOUS POINT ===** We will meet in the Penderel's Oak. *283–288 High Holborn, Holborn WC1V 7HP* zone 1 central london so very easy to get to. I'll be wearing a **Starwars identifier** and will share mobile hotline just before event start and table number/location Lucas - The Unenlightened Desperately Seeking Answers

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

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!

The global Azure community is coming together again, and Columbus is officially on the map. View the session lineup and speakers at [Global Azure Columbus 2026](https://coazure.github.io/cbus-global-azure-2026/) On **Saturday, April 18, 2026**, the Azure Columbus Meetup, DevOps Meetup, and Code and Coffee Meetup are hosting our local edition of Global Azure 2026. This is a free, community-driven event packed with learning, networking, and all things Microsoft Azure. Whether you’re building modern cloud-native apps, experimenting with AI agents, deploying containers, automating infrastructure, or just beginning your Azure journey, this event is for you! **What to Expect** * Engaging technical sessions * Real-world Azure architecture & cloud-native patterns * AI, agents, automation, and modern DevOps * Food and drinks (because learning burns calories) * Time to connect with fellow engineers, architects, and cloud enthusiasts **Who Should Attend?** * Software engineers (any language, any stack) * Cloud architects * DevOps engineers * Data professionals * AI explorers * Platform builders * Anyone who loves solving hard problems with great tools If you build, deploy, automate, scale, monitor, or optimize in Azure, you’ll feel right at home. **Why Global Azure?** Global Azure is a worldwide community event where Azure user groups host learning sessions on the same day across the globe. It’s grassroots. It’s technical. It’s practical. And it’s powered by people who genuinely love sharing what they’ve learned. And yes, it’s free to attend!

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/

**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

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.