## about this topic
Software development is the process of designing, building, testing and maintaining systems — and it is the heart of CodeCrush. This hub gathers articles on software architecture, methodologies (agile, Scrum, BDD, TDD), code quality, testing, version control and the practices that separate code which merely works from software that lasts. The guides are written with practical, applicable examples for both the person building their first project and the person leading an engineering team. Here you will find everything from fundamentals — how IDEs, terminals and essential tools work — to discussions of modern architecture, microservices and the design patterns real companies run in production.
## all articles
Articles about Software Development
- Programming
Design Patterns: what they are and how to apply them in software
Design Patterns are reusable solutions to recurring software design problems. See categories, practical examples, and when to apply each one.
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Henrico - Programming
Low-Code: what it is, advantages, and when to use it
Low-code accelerates software creation with visual interfaces and ready-made components, requiring minimal coding. See advantages, risks, and when to adopt.
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Plugin Development: How to Extend Software
A plugin is a module that adds functions to an application via APIs and extension points, without changing the source code. See types, advantages, and how to create one.
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WebSockets: real-time bidirectional communication on the web
WebSocket is a protocol that keeps a persistent, full-duplex TCP connection between client and server, the foundation of chats, games, and real-time dashboards.
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Side projects: what they are and how they boost your career
Side projects are personal projects built outside work to learn technologies, build a portfolio, and open career opportunities in tech.
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iOS Development: a complete guide to building Apple apps
iOS development guide: learn to build apps for iPhone and iPad with Swift, Xcode, and SwiftUI, from requirements and costs to publishing on the App Store.
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Modern Web Development: Architectures and Methodologies
Modern web development combines architectures like microservices and serverless with agile practices and DevOps to create scalable, secure applications.
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How to build a standout GitHub: a guide for devs
A standout GitHub combines a profile README, organized repositories, projects with tests, and descriptive commits. See the step-by-step.
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Is It Worth Studying Programming in 2026?
Yes, it is worth it: Brazil graduates only 53 thousand IT professionals per year against a much larger demand, and AI amplifies the value of those who can program.
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JavaScript vs TypeScript: which to choose for your project?
TypeScript adds static typing to JavaScript and reduces errors in large projects; JavaScript remains ideal for prototypes and simple projects.
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English for Programmers: A Guide to Advancing Your Career
English is the standard language of technology. See why programmers and leaders need it and how to master the language with daily practice and immersion.
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Renata - Programming
Delphi Programming Language: Guide and Uses in 2026
Delphi is an object-oriented language based on Object Pascal, used to create native apps for Windows, macOS, iOS, and Android via RAD Studio.
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What is Scratch? A block programming guide
Scratch is the MIT block-based programming language for beginners. See what it is, how it works, how to start for free and why it teaches logic.
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Problem decomposition: what it is and how to apply it
Problem decomposition is the technique of breaking a complex challenge into smaller, manageable parts, applied in code, teams and crisis management.
Read articleRenata - Programming
Facebook Graph API: what it is and how to implement
The Graph API is Meta official HTTP interface for reading and publishing Facebook data. See how to register the app, authenticate users and make calls.
Read articleHenrico - Infrastructure and DevOps
Cowsay API: how to use the talking cow in the terminal
Cowsay is a command-line tool that displays messages in the speech bubble of an ASCII cow. Install via apt or npm and customize with the -f flag.
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How to Get Started with React: A Step-by-Step Guide for Beginners
React is the most used JavaScript library for building web interfaces. Learn to create your first app with Node.js, npx, and Vite step by step.
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npx: what it is and how to run npm packages without installing
npx is npm's package runner: it runs CLI tools from the registry without global installation. See how it works, examples, and differences from npm.
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Productivity for devs: behind the scenes of a tech career
Developer productivity comes from habits: continuous learning, mastering the fundamentals, and the critical use of AI. See the behind-the-scenes secrets of tech.
Read articleRenata - Infrastructure and DevOps
Package Managers: npm, Yarn, pnpm and More
Package managers automate installing and updating dependencies. Compare npm, Yarn, pnpm, Chocolatey, and Homebrew and learn which to use.
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Terminal Commands: A Guide for Windows, Mac, and Linux
A guide to essential terminal commands: dir, cd, and ipconfig in Windows CMD; ls, cp, mv, and grep in the Mac Terminal and the Linux shell.
Read articleHenrico - AI and Data
NumPy: what it is and what the Python library is for
NumPy is the Python library for numerical computing that provides multidimensional arrays and fast vectorized operations for data and science.
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Why Do Nerds Like Programming? Passion and Code
Nerds like programming because it unites logic, problem solving and creation — and 68% of developers code as a hobby outside of work.
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Data Structures: Arrays, Stacks, Queues, Trees, and Hash
Data structures organize information in memory: arrays and lists hold collections, stacks and queues control order, and hash tables speed up lookups.
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Euclidean Distance: What It Is, Formula, and Uses in Python
Euclidean distance is the straight-line measure between two points, obtained by the root of the sum of squared differences; it is the basis of KNN and K-Means.
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Mock Objects: what they are and how to use them in tests
Mock objects are dependency simulations used in unit tests to isolate code, speed up execution and verify interactions without databases or APIs.
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The Ruby language: what it is, syntax, and Ruby on Rails
Ruby is a dynamic, object-oriented language created by Yukihiro Matsumoto, used in web development with Ruby on Rails, automation, and scripts.
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What is CSS? A guide to the web styling language
CSS (Cascading Style Sheets) is the language that defines colors, typography, and layout of HTML pages, used by 62% of devs according to Stack Overflow.
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Java Programming Language: A Complete Guide to Learn
Java is an object-oriented language that runs on any system via the JVM. See how to install the JDK, learn the syntax, and grow in your career.
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Boundary Value Analysis: What It Is and How to Apply It in Testing
Boundary value analysis is the black-box technique that tests the extremes of input partitions, where most software defects concentrate.
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The C language: what it is and how to start programming
C is a compiled language close to the hardware, created by Dennis Ritchie in 1972, used in operating systems, drivers, and embedded systems.
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Computer Graphics: What It Is, How It Works, and Where It''s Used
Computer graphics is the field that generates, manipulates, and displays images through algorithms and GPUs, used in games, film, design, medicine, and simulation.
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White-Box vs. Black-Box Testing: A Practical Guide
White-box testing analyzes the internal source code; black-box testing validates behavior through inputs and outputs. Learn when to use each strategy.
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Cyclomatic Complexity: What It Is and How to Calculate It
Cyclomatic complexity is McCabe''s metric that measures independent paths in code. Values up to 10 are considered safe, according to the NIST.
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Software testing: types, tools, and best practices
Software testing checks whether a system works as expected and detects bugs before delivery, reducing costs, risks, and rework.
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7 Most Used Programming Languages in the World in 2026
Python, JavaScript, Java, C++, C, C# and Go lead TIOBE, Stack Overflow and GitHub rankings in 2026. See where each one shines and which to learn.
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BDD: What Behavior-Driven Development Is
BDD is an agile practice that describes software behavior in Given-When-Then scenarios, aligning business, developers, and QA before the code.
Read articleRenata - Career
Junior, Mid-level, and Senior Dev: what is the difference in practice?
A junior dev needs supervision, a mid-level works autonomously, and a senior leads complex projects, mentors the team, and makes architecture decisions.
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Semantic HTML: what it is, tags and how it improves SEO
Semantic HTML uses tags like header, nav, main and article to describe the meaning of content, improving accessibility, SEO and machine readability.
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Tech Lead: what they do, salary and skills
The Tech Lead is the senior developer who technically leads a team: defines architecture, makes critical decisions, mentors and connects code to business.
Read articleRenata - Programming
Top programming languages in 2026
Python leads the IEEE Spectrum and Stack Overflow rankings in 2026, followed by JavaScript, SQL, Java and the C languages in the most demanded jobs.
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Programmer''s Day: why is it celebrated on September 13?
Programmer''s Day is celebrated on the 256th day of the year, September 13, because 256 is the total number of possible values in an 8-bit byte.
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Semantic versioning (SemVer): what it is and how to use it
Semantic versioning (SemVer) is the MAJOR.MINOR.PATCH standard that communicates the impact of each release and helps avoid dependency hell.
Read articleHenrico - Infrastructure and DevOps
Embedded Systems: What They Are and How They Work
Embedded systems are dedicated computers inside cars, appliances, and medical equipment, designed to perform a specific function.
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Brendow - Programming
Nielsen Heuristics: the 10 usability rules
The 10 Nielsen Heuristics are usability principles created by Jakob Nielsen to evaluate interfaces and fix UX problems.
Read articleRenata - Programming
Best VSCode themes and extensions: 2026 guide
VSCode is the most used editor in the world (75.9%): see the best themes, like Dracula, and the essential extensions to code faster in 2026.
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Developer resume: how to create one that impresses
An effective developer resume is 1–2 pages long, tailors skills to the job, proves results with numbers, and includes links to GitHub and LinkedIn.
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10 Sites with Programming Challenges to Practice
Meet 10 sites with programming challenges — HackerRank, LeetCode, Codeforces, and more — to train algorithms, data structures, and logic.
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Programming Logic: What It Is, Concepts, and How to Learn
Programming logic is the foundation for creating algorithms: understand variables, conditionals, loops, and data structures with practical examples in Python.
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5 Sites to Learn CSS by Playing: Flexbox and Grid
Flexbox Froggy, Flexbox Zombies, Grid Garden, Flexbox Defense and Grid Critters teach CSS Flexbox and Grid with interactive browser games.
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7 Sites to Practice JavaScript with Real Challenges
HackerEarth, Edabit, CodinGame, Codewars, LeetCode, HackerRank and CodeChef offer free challenges to practice JavaScript online.
Read articleHenrico & Renata - Programming
Framework: what it is, how it works, and which to choose in 2026
A framework is a reusable code structure that standardizes and accelerates software development. See the types, examples, and how to pick yours.
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Types of Frameworks: Web, Mobile, Data, and Games
Frameworks are reusable code structures that accelerate projects. Meet the types for web, mobile, data science, games, and IoT.
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What is Python? A beginner's guide with examples
Python is a high-level, interpreted and multiparadigm language, used in data science, AI, automation and web. See examples and how to start.
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