Clack: glue for web apps
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Clack is an abstraction layer for Common Lisp web applications that allows applications to run on different web servers. It provides composability through a middleware layer. Clack has evolved over time from an early stage of limited installation options and abandoned projects to the current age where it has reached version 1.0, is well tested and used as the foundation for many frameworks. The developer hopes more people will now build web applications using the mature Clack ecosystem.
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So, your business has already opened sourced some of its code? Great! Or you're thinking about it? That's fine! But now, someone's asking you about giving it to these Apache people? What's up with that, and why isn't just being open source enough?
In this talk, we'll look at several real world examples of where companies have chosen to contribute their existing open source code to the Apache Software Foundation. We'll see the advantages they got from it, the problems they faced along the way, why they did it, and how it helped their business. We'll also look briefly at where it may not be the right fit.
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Слушатели узнают, как в Zalando решают эту проблему с использованием централизованной шины передачи данных -- Nakadi. Получат представление о тех проблемах, которые их могут поджидать при выборе похожей архитектуры на примере проблем выбора формата передачи данных, системы версионирования формата сообщений и сложностей эксплуатации высоконагруженных кластеров Kafka в облачной системе AWS.
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change the way we build, maintain, operate, and integrate
applications. This talk is intended for Java developers who wants to hear and see how you can develop Java microservices that are ready to run in containers.
In this talk we will build a set of Java based Microservices that uses a mix of technologies with Apache Camel, Spring Boot and WildFly Swarm.
You will see how we can build small discrete microservices with these Java technologies and build and deploy on the Kubernets container platform.
We will discuss practices how to build distributed and fault tolerant microservices using technologies such as Kubernetes Services, Camel EIPs, and Netflixx Hysterix.
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This talk is a 50/50 mix between slides and demo.
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Rex - Lightning Talk yapc.eu 2013
Rex - Lightning Talk yapc.eu 2013Jan Gehring This document discusses problems with the current processes for deploying software to test and live servers. It takes a long time and is error-prone to manually install and update software across multiple servers using different scripts for each environment. This introduces risks when developers and operations teams do not have standardized processes. The document introduces Rex as a solution to automate server configuration, deployment, and management using a single tool that allows developers and operations to work from the same playbook through remote execution and orchestration of tasks across server groups.
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Frontera распределенный робот для обхода веба в больших объемах / Александр С...Ontico В этом докладе я собираюсь поделиться нашим опытом обхода испанского интернета. Мы поставили перед собой задачу обойти около 600 тысяч веб-сайтов в зоне .es с целью сбора статистики об узлах и их размерах. Я расскажу об архитектуре робота, хранилища, проблемах, с которыми мы столкнулись при обходе, и их решении.
Наше решение доступно в форме open source фреймворка Frontera. Фреймворк позволяет построить распределенного робота для скачивания страниц из Интернета в больших объемах в реальном времени. Также он может быть использован для построения сфокусированных роботов для выкачивания подмножества заранее известных веб-сайтов.
Фреймворк предлагает: настраиваемое хранилище URL документов (RDBMS или Key Value), управление стратегиями обхода, абстракцию транспортного уровня, абстракцию модуля загрузки.
Доклад построен в увлекательной форме: описание проблемы, решение и проблемы, которые возникли в ходе разработки решения.
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AI Changes Everything – Talk at Cardiff Metropolitan University, 29th April 2...
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https://alandix.com/academic/talks/CMet2025-AI-Changes-Everything/
Is AI just another technology, or does it fundamentally change the way we live and think?
Every technology has a direct impact with micro-ethical consequences, some good, some bad. However more profound are the ways in which some technologies reshape the very fabric of society with macro-ethical impacts. The invention of the stirrup revolutionised mounted combat, but as a side effect gave rise to the feudal system, which still shapes politics today. The internal combustion engine offers personal freedom and creates pollution, but has also transformed the nature of urban planning and international trade. When we look at AI the micro-ethical issues, such as bias, are most obvious, but the macro-ethical challenges may be greater.
At a micro-ethical level AI has the potential to deepen social, ethnic and gender bias, issues I have warned about since the early 1990s! It is also being used increasingly on the battlefield. However, it also offers amazing opportunities in health and educations, as the recent Nobel prizes for the developers of AlphaFold illustrate. More radically, the need to encode ethics acts as a mirror to surface essential ethical problems and conflicts.
At the macro-ethical level, by the early 2000s digital technology had already begun to undermine sovereignty (e.g. gambling), market economics (through network effects and emergent monopolies), and the very meaning of money. Modern AI is the child of big data, big computation and ultimately big business, intensifying the inherent tendency of digital technology to concentrate power. AI is already unravelling the fundamentals of the social, political and economic world around us, but this is a world that needs radical reimagining to overcome the global environmental and human challenges that confront us. Our challenge is whether to let the threads fall as they may, or to use them to weave a better future.
Generative Artificial Intelligence (GenAI) in Business
Generative Artificial Intelligence (GenAI) in BusinessDr. Tathagat Varma My talk for the Indian School of Business (ISB) Emerging Leaders Program Cohort 9. In this talk, I discussed key issues around adoption of GenAI in business - benefits, opportunities and limitations. I also discussed how my research on Theory of Cognitive Chasms helps address some of these issues
HCL Nomad Web – Best Practices und Verwaltung von Multiuser-Umgebungen
HCL Nomad Web – Best Practices und Verwaltung von Multiuser-Umgebungenpanagenda Webinar Recording: https://www.panagenda.com/webinars/hcl-nomad-web-best-practices-und-verwaltung-von-multiuser-umgebungen/
HCL Nomad Web wird als die nächste Generation des HCL Notes-Clients gefeiert und bietet zahlreiche Vorteile, wie die Beseitigung des Bedarfs an Paketierung, Verteilung und Installation. Nomad Web-Client-Updates werden “automatisch” im Hintergrund installiert, was den administrativen Aufwand im Vergleich zu traditionellen HCL Notes-Clients erheblich reduziert. Allerdings stellt die Fehlerbehebung in Nomad Web im Vergleich zum Notes-Client einzigartige Herausforderungen dar.
Begleiten Sie Christoph und Marc, während sie demonstrieren, wie der Fehlerbehebungsprozess in HCL Nomad Web vereinfacht werden kann, um eine reibungslose und effiziente Benutzererfahrung zu gewährleisten.
In diesem Webinar werden wir effektive Strategien zur Diagnose und Lösung häufiger Probleme in HCL Nomad Web untersuchen, einschließlich
- Zugriff auf die Konsole
- Auffinden und Interpretieren von Protokolldateien
- Zugriff auf den Datenordner im Cache des Browsers (unter Verwendung von OPFS)
- Verständnis der Unterschiede zwischen Einzel- und Mehrbenutzerszenarien
- Nutzung der Client Clocking-Funktion
How Can I use the AI Hype in my Business Context?
How Can I use the AI Hype in my Business Context?Daniel Lehner 𝙄𝙨 𝘼𝙄 𝙟𝙪𝙨𝙩 𝙝𝙮𝙥𝙚? 𝙊𝙧 𝙞𝙨 𝙞𝙩 𝙩𝙝𝙚 𝙜𝙖𝙢𝙚 𝙘𝙝𝙖𝙣𝙜𝙚𝙧 𝙮𝙤𝙪𝙧 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙣𝙚𝙚𝙙𝙨?
Everyone’s talking about AI but is anyone really using it to create real value?
Most companies want to leverage AI. Few know 𝗵𝗼𝘄.
✅ What exactly should you ask to find real AI opportunities?
✅ Which AI techniques actually fit your business?
✅ Is your data even ready for AI?
If you’re not sure, you’re not alone. This is a condensed version of the slides I presented at a Linkedin webinar for Tecnovy on 28.04.2025.
Linux Support for SMARC: How Toradex Empowers Embedded Developers
Linux Support for SMARC: How Toradex Empowers Embedded DevelopersToradex Toradex brings robust Linux support to SMARC (Smart Mobility Architecture), ensuring high performance and long-term reliability for embedded applications. Here’s how:
• Optimized Torizon OS & Yocto Support – Toradex provides Torizon OS, a Debian-based easy-to-use platform, and Yocto BSPs for customized Linux images on SMARC modules.
• Seamless Integration with i.MX 8M Plus and i.MX 95 – Toradex SMARC solutions leverage NXP’s i.MX 8 M Plus and i.MX 95 SoCs, delivering power efficiency and AI-ready performance.
• Secure and Reliable – With Secure Boot, over-the-air (OTA) updates, and LTS kernel support, Toradex ensures industrial-grade security and longevity.
• Containerized Workflows for AI & IoT – Support for Docker, ROS, and real-time Linux enables scalable AI, ML, and IoT applications.
• Strong Ecosystem & Developer Support – Toradex offers comprehensive documentation, developer tools, and dedicated support, accelerating time-to-market.
With Toradex’s Linux support for SMARC, developers get a scalable, secure, and high-performance solution for industrial, medical, and AI-driven applications.
Do you have a specific project or application in mind where you're considering SMARC? We can help with Free Compatibility Check and help you with quick time-to-market
For more information: https://www.toradex.com/computer-on-modules/smarc-arm-family
Mobile App Development Company in Saudi Arabia
Mobile App Development Company in Saudi ArabiaSteve Jonas EmizenTech is a globally recognized software development company, proudly serving businesses since 2013. With over 11+ years of industry experience and a team of 200+ skilled professionals, we have successfully delivered 1200+ projects across various sectors. As a leading Mobile App Development Company In Saudi Arabia we offer end-to-end solutions for iOS, Android, and cross-platform applications. Our apps are known for their user-friendly interfaces, scalability, high performance, and strong security features. We tailor each mobile application to meet the unique needs of different industries, ensuring a seamless user experience. EmizenTech is committed to turning your vision into a powerful digital product that drives growth, innovation, and long-term success in the competitive mobile landscape of Saudi Arabia.
What is Model Context Protocol(MCP) - The new technology for communication bw...
What is Model Context Protocol(MCP) - The new technology for communication bw...Vishnu Singh Chundawat
Clack: glue for web apps
- 1. Clack: glue for web apps Clack Meetup #1 Eitaro Fukamachi
- 2. Thank you for coming.
- 3. I’m Eitaro Fukamachi @nitro_idiot fukamachi
- 4. Topics • What’s Clack? • As an Abstraction Layer • As a composable rule • History
- 5. Clack
- 6. • Web application environment • Intended to be a basement of frameworks • Abstracts web servers • Composability Clack
- 7. Clack (clackup (lambda (env) ‘(200 (:content-type “text/plain”) (“Hello, World”))) :server :hunchentoot)
- 8. Clack (clackup (lambda (env) ‘(200 (:content-type “text/plain”) (“Hello, World”))) :server :hunchentoot) Application
- 9. Clack (clackup (lambda (env) ‘(200 (:content-type “text/plain”) (“Hello, World”))) :server :hunchentoot) Application Web server to run the application on
- 10. Web server Abstract web servers Application Web server Web server Application Application
- 11. Web server Abstract web servers Application Web server Web server Application Application Clack
- 14. • Middleware wraps an application • Middleware can be reused • ex) access log, session manager “Middleware”
- 15. History
- 16. We lived 4 ages.
- 17. • asdf-install or clbuild (not reliable) • GitHub wasn’t popular • Posted a bug to mailing-lists • Many projects are abandoned or inactive • We couldn’t tell if a library works with other libraries BQ (Before Quicklisp = the Stone Age)
- 18. • Quicklisp made installation of libraries really easier • It make sure libraries can load at least AQ (the Tool Age)
- 19. • Hosted on GitHub • Has many tests • Tested on Jenkins • Has a documentation Clack was out 4 years ago
- 20. • We had Clack & Caveman1 • We had Quicklisp • No DBI, No ORM (CLSQL was terrible) • Many projects were abandoned • Clojure already had Ring Clack (the Bronze Age)
- 21. • Hunchentoot, Weblocks, web4r, RESTAS • Most WAF were built on top of Hunchentoot!! • Is Hunchentoot reliable and everlasting? Clack (the Bronze Age)
- 22. The Present Age • We have ningle and Caveman2 • We have CL-DBI, SxQL, datafly and Integral • We have Woo, a really fast web server • We have CIM/Roswell and qlot • Clack reached ver 1.0
- 23. • Moved many codes to an individual project • Could reduce 1583 lines • Made it stable • Made it faster • Started testing on Clack v1.0
- 24. So, what’s next?
- 25. • We have everything we need to build a web application • Just try. • Looking for a Common Lisp job? We’re hiring! The next move
- 26. Thanks.