Go (Golang) is a statically typed, compiled systems programming language developed by Google. Its primary design goals are simplicity, fast compilation, and excellent concurrency support through goroutines and channels. Go compiles to a single statically linked binary with no runtime dependencies — deploying a Go application means copying a single binary to the target server. […]
Spring Boot is the most widely used Java web framework, providing an opinionated, auto-configured platform for building standalone, production-ready applications. Spring Boot embeds an HTTP server (Tomcat, Jetty, or Undertow) directly in the application JAR, eliminating the need for a separate application server deployment. A Spring Boot application is packaged as an executable “fat JAR” […]
Maven and Gradle are the two dominant build tools for Java projects. Maven uses an XML-based declarative configuration (pom.xml), follows strict conventions, and dominates in enterprise environments with heavy use of the Maven Central repository for dependency management. Gradle uses a Groovy or Kotlin DSL, is more flexible and faster than Maven (due to incremental […]
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 […]
NVM (Node Version Manager) allows installing and switching between multiple Node.js versions on the same machine without system-level package manager involvement. This is essential for developers or servers that need to run different Node.js versions for different projects — for example, running a legacy application on Node.js 16 while developing a new application on Node.js […]
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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