.NET is Microsoft’s open-source, cross-platform application framework that runs on Linux, macOS, and Windows. .NET 8 (the current LTS release) includes the ASP.NET Core web framework for building REST APIs and web applications, Entity Framework Core ORM, and a high-performance Kestrel HTTP server. .NET applications are compiled to platform-independent intermediate language (IL) bytecode and run […]
Ruby on Rails (Rails) is a full-stack web application framework built on Ruby that made convention-over-configuration and the MVC pattern mainstream in web development. Rails provides ActiveRecord (ORM), ActionController (routing and controllers), ActionView (templating with ERB/Haml), ActionMailer, ActiveJob (background jobs), ActionCable (WebSockets), and a comprehensive set of security defaults out of the box. A Rails […]
Ruby is a dynamic, object-oriented programming language best known as the language behind Ruby on Rails, the influential web framework that popularised convention-over-configuration and RESTful web applications. rbenv is the standard Ruby version manager for production servers — it allows installing and switching between multiple Ruby versions per user or per directory, without requiring root […]
Go’s standard library includes a production-ready HTTP server with support for HTTP/2, TLS, and concurrent request handling — no external framework is required for simple web applications. For more complex applications, the Gin framework adds routing, middleware, request binding, and response rendering while maintaining excellent performance. Go web applications compile to a single binary, making […]
Java is the most widely deployed programming language in enterprise environments, powering banking systems, e-commerce platforms, microservices, Android applications, and big data frameworks like Apache Kafka, Hadoop, and Spark. OpenJDK (Open Java Development Kit) is the open-source reference implementation of the Java SE specification, maintained by Red Hat, IBM, and the Java community. RHEL 9 […]
PM2 is a production-grade process manager for Node.js applications. Running a Node.js app directly with node server.js has a critical limitation: if the process crashes, it stays down until someone manually restarts it. PM2 solves this and much more — it automatically restarts crashed processes, starts applications on system boot, enables zero-downtime reloads for application […]
Node.js is a JavaScript runtime built on Chrome’s V8 engine that enables server-side JavaScript execution. Its non-blocking, event-driven I/O model makes it exceptionally efficient for real-time applications, REST APIs, streaming services, and microservices that handle many concurrent connections. The RHEL 9 default AppStream provides Node.js 18, but the NodeSource repository provides the latest LTS releases […]
Jupyter Notebook is an interactive computing environment that allows you to create documents containing live Python code, equations, visualisations, and explanatory text in a single file. Notebooks (.ipynb files) are the standard format for data exploration, machine learning experiments, scientific computing, and educational tutorials because they let you execute code in small cells, inspect results […]
Flask is a lightweight Python web microframework that provides only the essentials: URL routing, request/response handling, and Jinja2 templating. Unlike Django, Flask does not include an ORM, authentication, or admin interface by default — these are added through extensions like SQLAlchemy, Flask-Login, and Flask-Admin. This minimalism makes Flask the ideal choice for REST APIs, microservices, […]
Django is a high-level Python web framework that follows the “batteries included” philosophy — it provides an ORM, authentication, admin interface, form validation, URL routing, templating, and security middleware out of the box. This makes Django the framework of choice for data-driven applications and content management systems where rapid development and maintainability matter. Django’s ORM […]
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