Python Web Development

## Details Welcome to the DevSecOps London Gathering February Event on Wednesday 19 Feb in collaboration with London DevOps! We bring you two amazing talks, as well as the usual conversations, pizza and beer! 📍 **Hosted at Autogen AI, Pentonville Road, London** 📅 **Wednesday, 19 February** 🕕 **6:00–8:00 PM** ## Talk 1 **Abstract:** Concrete CMS, a popular open-source content management system, contains a critical flaw in its file upload functionality that can be exploited in two distinct ways. This talk demonstrates how a single upload can lead to a Server-Side Request Forgery (SSRF), allowing access to internal cloud resources, and a double race condition that enables Remote Code Execution (RCE) via a malicious backdoor. We’ll walk through the exploitation process, show how existing protections can be bypassed, and highlight practical steps to secure file upload mechanisms in real-world applications. ## Talk 2 **Abstract** Treat authentication as a production-critical system with its own failure modes and operational risks. In this talk, I break down real-world auth incidents involving JWKS rotation errors, refresh token storms, clock drift, and session store outages. I show how to define SLIs and SLOs that measure user impact and how to build monitoring and alerting that expose real reliability problems. I demonstrate practical guardrails such as token caching, exponential backoff with jitter, circuit breakers, and feature-flagged degraded modes. Finally, I walk through an incident runbook that helps teams diagnose, mitigate, and recover from authentication failures safely and quickly.

Elixir London Meetup; February 2026 edition. All are welcome. **Session 1: Bryan Hunt - Faria Data Platform: Building a data platform in Elixir** How to build an ETL pipeline using Amazon Athena, and Elixir: techniques, tools, UX, lessons learned. **Session 2: Christoph Beck** **\- Structured Generation and Logits Processing with Elixir** Ever tried to get a poem from an LLM doesn't contain the letter \`e\`? Large Language Models are kind of amazing and surprisingly unreliable at the same time. Using Elixir's Bumblebee and open source LLMs, you can get much better control over the generation. We introduce you to logits processing, and how it can be used to achieve what ChatGPT can not accomplish. *The event is kindly sponsored by* [Verna](https://verna.earth). **Time** Doors open at 18, start at 18.30. **Venue** Geovation F4, Sutton Yard, 65 Goswell Rd., London EC1V 7EN **Refreshments** Food and drinks will be provisioned on the day. **IMPORTANT**: **If you wish to take photos and post online during the event, please notify organisers first, so that attendees can opt-out from being in photos.**

👋 General Info Hi friends, We’re excited to kick off our next React meetup on **February 18**! Join us for an evening of practical insights, great conversations, and community vibes — from real-world React talks to networking with fellow engineers. **🗣 Call for Proposals** Have an idea or story to share? Submit your talk proposal through our[ ](https://forms.gle/8gZfT3Qkfd71CxyK6)[CFP form](https://forms.gle/rCiQ8Y4jajiC8AHMA) and take the stage at one of our upcoming meetups! **🤝 Organized by** This event made possible thanks to the support from[ React Summit](https://reactsummit.com/) and[ JSNation](https://jsnation.com/) organizers –[ GitNation](https://portal.gitnation.org/). **🤝 Hosted by** Huge friends to our friends [Figma](https://www.figma.com/) Figma is a browser-based design and prototyping tool enabling real-collaboration. Built for developers, Figma's Dev Mode gives you the power to easily inspect designs and translate them into code—without changing the design file. Headquartered in San Francisco, in 2020 Figma opened its EMEA HQ in London. We’re a team of makers who celebrate our differences and share a passion for our community. Our London based engineering team is growing quickly and working on some of Figma's top company priorities. 🤝 **Want to support our community?** We’re looking for venue partners and sponsors for future meetups. Let’s discuss collaboration — [contact us](https://forms.gle/zWYxsanfbhV64dEr5)! **🕑 Event Schedule** * 18:00 - Doors open - snacks, beer, socialization * 18:50 - Opening notes * 19:00 - **The Lost Art of Debugging: Why Your Browser is Smarter than AI - [Abdullah Ola Mudathir](https://www.linkedin.com/in/cruxcodes/)** * 19:25 - **Why Your Marketing Scripts and Cookie Banners Are Ruining Your Lighthouse Scores - [Christopher Burns](https://www.linkedin.com/in/burnedchris/)** * **19:50 - Networking, Open Mic Lightning Talks** * Mingle until 21:00 pm 🗣️ **Talks** ➡️ **The Lost Art of Debugging: Why Your Browser is Smarter than AI - [Abdullah Ola Mudathir](https://www.linkedin.com/in/cruxcodes/)** *The easiest thing to do is often what causes hours of debugging down the line. With LLMs becoming increasingly normalized in the industry, an overreliance on them can allow bugs to slip through the cracks.* *In this talk, I'll demonstrate a practical debugging workflow: Debug first. Prompt second. I'll show how browser DevTools reveal what's actually happening faster than any AI can guess.* *You'll learn:* * *Essential DevTools features that improve your bug-fixing prowess* * *When to reach for your browser and when AI can actually help* * *The almost forgotten art of breakpoints and strategic console messages* *AI in your codebase represents growth, but understanding your runtime state represents mastery. This talk is about balancing both and knowing which tool to reach for first.* ➡️ **Why Your Marketing Scripts and Cookie Banners Are Ruining Your Lighthouse Scores - [Christopher Burns](https://www.linkedin.com/in/burnedchris/)** *Most marketing scripts and cookie banners run on the critical path. They block the main thread, delay first paint, and inject third-party code before the page is interactive.* *Consent managers often make this worse by synchronously loading vendors, mutating the DOM repeatedly, and re-hydrating UI after page load. The result is slower LCP, higher TBT, and unstable CLS.* *The fix is not fewer scripts, it is better orchestration. Treat consent as infrastructure, load vendors after intent, and keep compliance off the critical path.* — **👍 Code of Conduct** By registering for this event you agree to comply with our [CoC](https://gitnation.com/coc) **📩 Contact** events@gitnation.org https://twitter.com/ReactAdvanced http://youtube.com/ReactConferences https://bsky.app/profile/reactadvanced.gitnation.org

Okay! The SW London monthly meetup is taking place at Four Quarters in Elephant and Castle this time around. We now have two evening meetups each month in different areas of London The monthly indie pub night is a relaxing social with other indie game devs in London. Chat about all things game/tech related, make new friends and test out some demos from community members. Look out for the group with laptops and tablets out. [Venue](https://maps.app.goo.gl/5nPXse1Z4E3sgsYz9)

We are delighted to announce an evening of demos and a roundtable discussion on what you want to see from the meetups. There is also still time to feedback with the link below [Umbraco London Meetup Questionnaire](https://docs.google.com/forms/d/e/1FAIpQLSfISk1q_ZEoN82_vhiBeWwuVG3fUUB4uqkK-PqWtArajUErJw/viewform) We are welcome from 18:30, we shall look to get started around 18:45. We'll finish by 21:00 when we take the conversations to a local pub. \-\-\-\-\- **Experiments in V17** *by Matt Bliss - Technical Director* Matt will guide us through some of his experimentation in V17 and his learnings. **AI: Am I Too old for this \*\*\*\* (stuff)** *by Andy Hawken* Andy asks the big questions and he's going to talk about his experiences with Claude AI in January and a bit of February too. **Meetup feedback rountable** *by Richard Thompson and the meetup team* Richard will run us through the results of the feedback survey on the meetup and we'll have a discussion on what people want to see from the meetups. \-\-\-\-\-\- This is Embrace will be kindly providing some refreshments. Space is a bit limited so if you realise you can't make it please be sure to change your RSVP to No in case there are people on the waiting list. \-\-\-\-\- If you would like to contribute to our meetups please in touch by email ([hello@umblondon.co.uk](hello@umblondon.co.uk)) - we are always looking for people to give talks, or London-based Umbraco agencies to host us for the evening. Please read the [Code of Conduct](https://bit.ly/UmbLondonCodeOfConduct) for all our events.

**BOOK YOUR FREE TICKET TODAY** Are you looking to take your business skills to the next level? Join us at the London Self Development & Business Tips Group for an empowering event focused on boosting your professional development. Our speakers will share valuable insights on communication skills, personal development, motivation, and success. Learn effective strategies for self-empowerment and gain practical tips for enhancing your business strategy. Whether you're an entrepreneur, professional, or someone looking to improve yourself, this event is designed to help you build confidence, develop self-esteem, and achieve your goals. Don't miss this opportunity to network with like-minded individuals and take charge of your self-help and self-improvement journey. Invest in your future success and register today! Note: This event is open to all levels of experience and backgrounds. Join us and discover the power within you to become a confident and successful individual in both your personal and professional life. *Hosted by Dianetics & Scientology Life Improvement Centre, London.*

We're hosting our first meetup of 2026 in collaboration with our friends from **DevSecOps London Gathering**. We'll be generously hosted at the AutogenAI offices near King's Cross, and we'll feature two talks that should be of interest to both audiences. **6:00pm - Arrival** **6:45pm - Introductions** **7:00pm - The Talks** **Concrete Evidence: Two Races, One RCE** - [Adrian Tiron](https://www.linkedin.com/in/tironadrian/) Concrete CMS, a popular open-source content management system, contains a critical flaw in its file upload functionality that can be exploited in two distinct ways. This talk demonstrates how a single upload can lead to a Server-Side Request Forgery (SSRF), allowing access to internal cloud resources, and a double race condition that enables Remote Code Execution (RCE) via a malicious backdoor. We’ll walk through the exploitation process, show how existing protections can be bypassed, and highlight practical steps to secure file upload mechanisms in real-world applications. Adrian is the Co-Founder and Principal Pentester/Red Teamer at Fortbridge, bringing over 20 years of hands-on experience in cybersecurity. Adrian is known for delivering highly technical, practical content drawn from real-world assessments, and is passionate about pushing the boundaries of modern application security. **Keeping login from taking down your product with an SRE approach to auth –** [Viola Lykova](https://www.linkedin.com/in/violaly/) Treat authentication as a production-critical system with its own failure modes and operational risks. In this talk, I break down real-world auth incidents involving JWKS rotation errors, refresh token storms, clock drift, and session store outages. I show how to define SLIs and SLOs that measure user impact and how to build monitoring and alerting that expose real reliability problems. I demonstrate practical guardrails such as token caching, exponential backoff with jitter, circuit breakers, and feature-flagged degraded modes. Finally, I walk through an incident runbook that helps teams diagnose, mitigate, and recover from authentication failures safely and quickly. Viola is a Senior Software Engineer in fintech with an SRE mindset, focused on authentication as a production system. I care about reliability, incident patterns, and the kind of testing that still holds up when traffic spikes, dependencies misbehave, or keys rotate at the worst possible time. Viola speaks on practical auth topics across security and reliability. **Participate in a future Meetup** If you'd like to speak at a future meetup, or if you are able to host or sponsor the event, please fill in this [form](https://docs.google.com/forms/d/1FYGHEWTeBb5vVztGGg2YoUJmKR03o9mZaFIghf6vjzo/viewform?edit_requested=true) and we'll get back to you.

**Quick heads up: RSVPing here helps us gauge interest, but you’ll need to complete your registration on AI Camp to save your spot and get event updates. It only takes a minute. Sign up [here](https://www.aicamp.ai/event/eventdetails/W2026021910) and you’re all** **set**. **[https://www.aicamp.ai/event/eventdetails/W2026021910](https://www.aicamp.ai/event/eventdetails/W2026021910)** AI is already part of how developers work: Coding assistants. Autonomous agents. Background tasks. PR reviews. But in most companies, AI usage is either completely ungoverned or quietly blocked. This meetup is for developers who want to understand what AI governance actually means in practice, without turning their workflow into a compliance nightmare. We’ll focus on how teams are introducing guardrails that protect source code, credentials, and infrastructure while still letting developers move fast. No policy decks. No buzzwords. Just real examples of how AI agents are being used safely inside modern dev environments. **You’ll walk away with:** \- A clear understanding of what AI governance actually means for developers\, not just security teams \- Insight into why AI agents need different permissions than humans and where most teams get this wrong \- Practical examples of how guardrails can speed teams up instead of slowing them down \- A simple mental model you can apply whether you’re experimenting with AI locally or rolling it out across a team **Who this is for:** \- Beginner → intermediate software developers \- Platform engineers and DevOps folks supporting dev teams \- Anyone using \(or wanting to use\) AI tools beyond simple autocomplete **Agenda:** \* 6:00pm\~6:30pm: Checkin, Food and Networking \* 6:30pm\~6:45pm: Welcome/community update \* 6:45pm\~8:30pm: Tech talks and Q&A \* 8:30pm\~9:30pm: Open discussion & Mixer

**Important:** Register on the [event website](https://www.aicamp.ai/event/eventdetails/W2026021910)[ ](https://www.aicamp.ai/event/eventdetails/W2025110510)is required for admission. We are excited to partner with Coder for a special edition of our AI Meetup in February, focusing on AI governance and compliance for developers. AI is already part of how developers work: Coding assistants. Autonomous agents. Background tasks. PR reviews. But in most companies, AI usage is either completely ungoverned or quietly blocked. This meetup is for developers who want to understand what AI governance actually means in practice, without turning their workflow into a compliance nightmare. We’ll focus on how teams are introducing guardrails that protect source code, credentials, and infrastructure while still letting developers move fast. No policy decks. No buzzwords. Just real examples of how AI agents are being used safely inside modern dev environments. **You’ll walk away with:** * \- A clear understanding of what AI governance actually means for developers\, not just security teams * \- Insight into why AI agents need different permissions than humans and where most teams get this wrong * \- Practical examples of how guardrails can speed teams up instead of slowing them down * \- A simple mental model you can apply whether you’re experimenting with AI locally or rolling it out across a team **Who this is for:** \- Beginner → intermediate software developers \- Platform engineers and DevOps folks supporting dev teams \- Anyone using \(or wanting to use\) AI tools beyond simple autocomplete **Agenda:** \* 6:00pm\~6:30pm: Checkin, Food and Networking \* 6:30pm\~6:45pm: Welcome/community update \* 6:45pm\~8:30pm: Tech talks and Q&A \* 8:30pm\~9:30pm: Open discussion & Mixer **Tech Talk: AI Governance for Developers** **Speaker:** Eric Paulsen, Field CTO, Coder **Abstract:** In this session, we will deep dive into AI governance for developers. We will explores the often-unseen risks developers face when using AI tools—from unintended data exposure to tool lock-in—and how teams can implement lightweight, developer-friendly governance. Learn how to build secure, standardized AI workflows that provide guardrails without slowing innovation, so you can ship with confidence. **Speakers/Topics:** Check the [event website](https://www.aicamp.ai/event/eventdetails/W2026021910) for speakers and topics. If you have a keen interest in speaking to our community, we invite you to submit topics for consideration: [Submit Topics](https://forms.gle/JkMt91CZRtoJBSFUA) **Sponsors:** We are actively seeking sponsors to support AI developers community. Whether it is by offering venue spaces, providing food, or cash sponsorship. Sponsors will not only speak at the meetups, receive prominent recognition, but also gain exposure to our extensive membership base of 20,000+ AI developers in London and 500K+ worldwide.

**OPEN TO EVERYONE – NO TICKET REQUIRED** The PHP UK Conference returns on 20 February 2026, and as always we’ll be hosting a pre-conference meetup the evening before. This year we’ll be at The Traitors Gate, in their private space **The Vaults**, located at 14 Trinity Square, London EC3N 4AA. This meetup is open to all PHP London members, so feel free to come along for a drink and a catch-up with fellow PHP-Londoners and conference attendees. You can find full conference details at https://www.phpconference.co.uk/.

🏎️ **If you’re not automating yet… you probably are.** Be honest: how much of your job are you already secretly automating, and how much of it is just automation in disguise? In this session, **[Ellis Pratt](https://www.linkedin.com/in/ellispratt/)**, director of **[Cherryleaf](https://www.cherryleaf.com/)**, will take a clear, no-hype look at automation in technical communication. He’ll rewind to where things stood just over a year ago, then discuss what’s changed since. We’ll explore how automation shows up across the technical writing lifecycle, and common pitfalls that come with it. Finally, we’ll look ahead. What does increasing automation really mean for our careers as technical writers and documentarians? Join us for an honest, practical conversation about what to automate, what not to, and how to stay relevant as the tools keep changing. **📣 This event is aimed at technical writers and those working in closely related roles. The discussion will focus on automation and AI specifically in the context of technical documentation and technical content workflows.** **When:** Thursday 19 February, from 6.30pm **Where:** The Yellow Room @ Remark! 18 Leather Lane, EC1N 7SU **What:** 18.30 - 19.00 Arrival 19.00 - 19.45 Presentation 19.45 - 20.00 Short break 20.00 - 20.45 Presentation 20.45 - 21.30 Networking *All times are approximate.* **Photos:** Note that the organizers will take some photos for the WTD group.

**London Shopify Meetup 🇬🇧** Join fellow Shopify founders, e-commerce operators, and partners for an evening of real conversations, practical insights, and meaningful connections in the heart of London. Whether you’re scaling your first store, managing multiple brands, or building apps and services for Shopify merchants, this meetup is all about sharing what’s working *right now* — from growth tactics and conversion optimisation to retention, reviews, and partnerships. Expect: * ⚡ Short, insightful talks from Shopify experts * 🧠 Honest discussions around growth challenges and wins * 🤝 High-quality networking with merchants, agencies, and tech partners * 🍻 Drinks, good vibes, and zero hard selling Come to learn, connect, and leave with new ideas (and new contacts) you can actually use. **Spots are limited — RSVP now and be part of London’s growing Shopify community.**

​Join our new group’s second meeting. Meet fellow tech enthusiasts west of the beltway. ​Because our group is new, we have a poll for the direction we want to take this new group. ​[https://submatrix.net/article/Meetups/e9ym4fr8Ca](https://submatrix.net/article/Meetups/e9ym4fr8Ca) ​For this event, we will be running a working meetup. ​Our meetings are a great place to work on and show off what you do. We are always welcoming. ​Our format is great for people who have started on but not finished one or several side projects. ​We will start off with basic introductions and what we are working on and what our goals are. We’ll break the rest of the meeting into two working sessions. In between, we’ll do a quick check-in to see how folks are going. ​Then we will conclude with showcasing and networking. Don't have an account here? We have more than one platform available for RSVP: Meetup: [https://www.meetup.com/loudoun-dev-group/events/313329870/](https://www.meetup.com/loudoun-dev-group/events/313329870/) Luma: **[https://luma.com/dhd9iufz](https://luma.com/dhd9iufz)**

Join local video game developers, artists, musicians and writers to talk about the art and science of game development. Bring a device and demo your game, talk shop, find like minded folks to join forces with, have a snack or a beverage among new friends. We are an informal meetup where we share what we've been working on and socialize. Come for all or just a bit of the time!

NOVA Code and Coffee is an inclusive, informal, co-working session. People of all skill levels are invited. The concept is simple, bring a laptop and ideas, we'll provide the coffee and donuts! Here's how it works: 1. At 10:15 everyone introduces themselves and briefly describes what brought them to Code & Coffee today (project, homework, networking, etc) 2. For the rest of the day, folks work in the communal space on their projects providing one another help and conversation as needed. Oh and they usually drink coffee and tea too! That's it! Hope to see you there! **Location** Our hosts are the Fairfax City Economic Development Building: [10300 Eaton Pl, Fairfax, VA 22030](https://www.bing.com/ck/a?!&&p=d7298231ca2df594df822003f9a93517c788fceefe1fcbb79c8976696e341bc6JmltdHM9MTc1MzIyODgwMA&ptn=3&ver=2&hsh=4&fclid=180d0745-3b7f-69a1-23a2-11433a7868e5&u=a1L21hcHM_Jm1lcGk9MTA5fn5Ub3BPZlBhZ2V-QWRkcmVzc19MaW5rJnR5PTE4JnE9RmFpcmZheCUyMENpdHklMjBFY29ub21pYyUyMERldmVsb3BtZW50JnNzPXlwaWQuWU44NzN4ODI4MTk2Mjg0NTk5MDM4MTU0MiZwcG9pcz0zOC44NjE0NDYzODA2MTUyMzRfLTc3LjMwMjE3NzQyOTE5OTIyX0ZhaXJmYXglMjBDaXR5JTIwRWNvbm9taWMlMjBEZXZlbG9wbWVudF9ZTjg3M3g4MjgxOTYyODQ1OTkwMzgxNTQyfiZjcD0zOC44NjE0NDZ-LTc3LjMwMjE3NyZ2PTImc1Y9MSZGT1JNPU1QU1JQTA&ntb=1) Conference Room A- Large, Floor 1 This is a new venue for us, so give us some time to get more details about it. Driving is the best option. There is plenty of free on-site parking. Otherwise, we are a 22 minute bus from the Vienna Metro Station. **Sponsored by:** Thank you [Fairfax City Economic Development](https://gofairfaxcity.com/) and [Mason Enterprise Center](https://enterprise.gmu.edu/) for making this event possible! **Thank you so much to our wonderful sponsors!** Organized by [DMV Petri Dish](https://www.dmvpetridish.com/) **[Code of Conduct](https://github.com/NoVACodeCoffee/admin/blob/master/code-of-conduct.md):** We value the participation of each member of the community and want all attendees to have an enjoyable and fulfilling experience. To make clear what is expected, all delegates/attendees, organizers, and volunteers at any Nova Code & Coffee events are required to conform to our [Code of Conduct](https://github.com/NoVACodeCoffee/admin/blob/master/code-of-conduct.md).

It’s Ann’s birthday, which means one thing: we’re celebrating the only way we know how—live music, dancing, and great people!!! Bring your positive energy with you! It's also Joe R's Birthday! Double the birthdays! Double the fun! Join us for a high-energy night with Junkfood. If you know this band, you know it’s nonstop fun, and a packed dance floor. If you don’t know them, trust me — you will by the end of the night!!!

Join us for an informal gathering of Python enthusiasts at ZiPani, where we'll blend our love for coding with the rich aroma of coffee! Whether you're a seasoned developer or just starting out, this meetup is designed for everyone who enjoys Python programming in a relaxed environment. Plan: * **Casual Coding:** Work on your personal projects, get help, or share your code with others. * **Open Discussion:** From Python libraries to best practices, let's talk about what's on your mind. * **Networking:** Meet other local Python developers, exchange ideas, and maybe find your next coding buddy or collaborator. Why Attend? * Learn something new or share your knowledge in a friendly atmosphere. * Get real-time help with coding problems or brainstorm new ideas. * Discover local job opportunities or side projects within the Python community. No need for formal presentations or slides; this is all about conversation and collaboration. Feel free to come and go as your schedule allows.