Open-source alternatives to 90DaysOfCyberSecurity

This project is an interactive programming curriculum and educational system designed to teach computer science and software engineering. It provides a structured set of courses and professional roadmaps focused on backend engineering, DevOps, and systems fundamentals. The platform is distinguished by an AI-powered coding tutor that provides Socratic guidance and contextual hints to help students find solutions independently. It features a browser-based code sandbox using WebAssembly to eliminate local environment setup, alongside automated test-based grading and spaced-repetition logic to re

This project is a curated technical resource directory and software engineering learning roadmap. It serves as a computer science study curriculum and professional development framework, providing staged progressions for mastering programming languages, data structures, and full-stack development. The repository functions as a career preparation guide, offering strategic frameworks for resume building, technical interview practice, and internship application targeting. It includes a system for identifying income opportunities and managing a professional social presence to increase visibility.

This project serves as a centralized, community-driven repository of technical knowledge and administrative resources. It provides a structured taxonomy that aggregates disparate information into a searchable framework, supporting continuous learning and rapid problem-solving for system administrators and cybersecurity practitioners. By mapping resources across offensive security, infrastructure management, and software development, it offers a unified path for skill acquisition and professional reference. The project is defined by a command-line-first design philosophy, prioritizing terminal

This project is a curated ebook directory and digital library designed for self-directed learning. It functions as a version-controlled knowledge base that provides a collection of downloadable academic textbooks and educational resources across multiple disciplines. The library is built as a markdown-based system where book metadata and download links are stored in flat files. These files are managed through a git-driven content pipeline and rendered as a static site resource index for fast access and simple hosting. The system utilizes a directory-based categorization model to organize mat

This project is a technical career guide and resource for developers navigating the software engineering job market. It serves as a comprehensive roadmap for securing professional employment, providing a technical interview preparation guide and a directory for mentorship and fellowships. The project provides a framework for drafting technical resumes and portfolios, focusing on describing project experience through metrics to attract recruiters. It also details professional networking strategies, including methods for executing cold outreach and securing job referrals. The resource covers b

This project is a guided roadmap for Go backend engineering, providing a structured learning path to master the language and its ecosystem. It serves as an educational outline for progressing from beginner to professional proficiency in software development. The roadmap specifically covers microservices architecture, detailing the implementation of remote procedure calls, message brokers, and distributed tracing. It also functions as a tooling curriculum, identifying industry standard libraries for logging, unit testing, and integration testing. The broader scope encompasses backend engineer

VulApps is a vulnerability lab orchestrator that provides managed container environments. It delivers a curated suite of containerized security tools and applications with known security flaws for use in penetration testing sandboxes and exploit research. The project focuses on the rapid deployment of isolated environments designed for practicing security attacks and verifying vulnerability patches. It includes a collection of Docker-based vulnerable application environments and pre-configured toolsets for security auditing. The system covers the orchestration of container deployments to sim

This project is a cybersecurity educational resource and courseware designed for malware analysis and reverse engineering. It provides a structured curriculum of lessons, labs, and guided projects focused on detecting and understanding the behavior of malicious software. The resource includes a lab guide for building isolated virtual machine environments to safely execute and study malware. It covers the setup of a specialized toolchain consisting of disassemblers and debuggers used to analyze compiled machine code. The training material covers both static analysis, which examines binary cod

Metasploitable3 is an automated virtual machine provisioner designed to build and deploy operating system images with intentional security weaknesses. It functions as a penetration testing lab by creating vulnerable virtual machine targets used for security training, exploit development, and the validation of security tools. The system uses configuration scripts to inject vulnerabilities into Windows and Linux environments. This includes the deployment of insecure applications and services, such as web servers and databases, and the application of misconfigured system permissions to simulate

This project is a comprehensive, open-source educational curriculum designed to guide developers through the mastery of generative artificial intelligence. It provides a structured learning path that covers foundational concepts, prompt engineering, and the practical application of large language models. The repository serves as a central hub for skill acquisition, offering sequential modules that progress from basic model mechanics to advanced architectural patterns. The curriculum distinguishes itself by focusing on the end-to-end lifecycle of intelligent software, including the implementat

This project is a curated technical resource library and static site generator designed to organize books and documentation covering computer science, cybersecurity, DevOps, and systems programming. It functions as a schema-driven resource directory that uses markdown content management to transform structured files and metadata into pre-rendered HTML pages. The system implements a client-side search engine that utilizes a JSON manifest to filter resources directly in the browser, removing the need for server-side queries. It organizes technical literature into a structured directory by mappi

DVWA is a vulnerable web application lab and penetration testing sandbox designed to simulate common security flaws. It serves as a training platform for the OWASP Top 10 security risks and functions as a PHP and MySQL security lab for practicing the identification and exploitation of web vulnerabilities. The project provides a graduated learning experience through configurable security levels that adjust the difficulty of the vulnerabilities. It also supports switching between different database engines to research how various storage systems respond to injection attacks. The application is

This project is a comprehensive directory of software utilities, frameworks, and educational resources designed for cybersecurity competitions and offensive security research. It serves as a centralized index for tools used in cryptography, forensics, reverse engineering, and web exploitation, while providing structured materials for training and skill development. The repository distinguishes itself through a community-driven maintenance model that aggregates and organizes technical resources into a searchable, hierarchical structure. It facilitates knowledge transfer by cataloging expert pr

This project is a comprehensive career transition guide and job navigator designed for software engineers moving from the private sector into government and public service roles. It serves as a structured resource for evaluating job eligibility, comparing professional benefits, and selecting government positions that value technical backgrounds. The repository provides specialized guidance for the public sector recruitment process, including a handbook for navigating political reviews, medical screenings, and background vetting. It also features a civil service exam guide with study methodolo

This project is a comprehensive study kit and resource archive for the Structure and Interpretation of Computer Programs (SICP) course. It serves as a curated learning path for studying functional programming and the fundamentals of program construction, providing a centralized directory of textbooks, tutorials, and instructional materials. A primary focus of the repository is multilingual accessibility, specifically providing Chinese translations of English lecture subtitles and transcripts. These translated resources are mirrored across multiple video hosting platforms and cloud storage pro

InterviewGuide is a comprehensive technical interview preparation platform that covers the full spectrum of software engineering recruitment, from foundational computer science concepts through to offer negotiation. It provides structured learning paths across algorithms, operating systems, databases, networking, and programming languages, with a particular emphasis on C++ and Go. The platform aggregates real interview experiences and company-specific questions from major tech employers, offering candidates a searchable database of past written exam problems and detailed accounts of actual int

An opinionated guide on how to become a professional Web/Mobile App Developer.

This project is a structured, open-source educational roadmap designed to guide students through a comprehensive undergraduate-level curriculum in data science. It provides a curated sequence of high-quality learning materials that focus on mastering computational logic, software development, and statistical analysis using the Python programming language. The curriculum distinguishes itself by integrating project-based competency validation, requiring learners to execute capstone projects that demonstrate professional skill mastery. It utilizes version control tools to allow students to track

This project is an open-source educational platform that provides a structured curriculum for full-stack web development. It functions as a community-driven repository that organizes high-quality external tutorials and articles into logical learning paths, guiding students through the foundational skills required to become professional software developers. The curriculum distinguishes itself by focusing on project-based learning, requiring students to build a portfolio of practical applications to demonstrate their technical proficiency. By aggregating curated resources rather than hosting pr

This project is a comprehensive cybersecurity knowledge repository that provides a structured collection of technical documentation, training materials, and professional development roadmaps. It serves as a centralized resource for practitioners to navigate complex security disciplines, ranging from offensive and defensive fundamentals to specialized infrastructure and application security. The repository distinguishes itself through a modular resource framework that enables users to construct isolated cyber range environments for hands-on practice. It also features a specialized reference gu

Ethical-Hacking-Labs is a comprehensive cybersecurity training curriculum and lab suite designed for learning penetration testing, network analysis, and offensive security techniques. It provides a structured environment for practicing the full attack lifecycle, from initial reconnaissance and scanning to exploitation and post-compromise analysis. The project provides instructional materials and guided exercises that cover specific technical domains, including open source intelligence research and network security courseware. It includes a practical workbook for identifying system vulnerabili

This project is an educational resource and software architecture framework focused on the technical foundations of large language model engineering. It provides a collection of guides and design patterns for building and maintaining professional, scalable systems using large language models. The resource outlines practical implementation patterns for orchestrating workflows that combine prompt engineering, model calls, and vector databases. It focuses on transforming prompt development into a structured engineering process to ensure reliable model outputs in production environments. The cov

This project is a guided instructional course and tutorial for learning version control, repository management, and collaborative workflows using GitHub. It serves as a practical introduction to branching, committing, and managing pull requests for software development projects. The curriculum includes specialized training on collaborative workflows, focusing on implementing peer reviews and formal merge processes. It also provides a step-by-step guide for creating customized personal profile pages using Markdown. The materials cover fundamental Git project management and the setup of collab

This project is a comprehensive front-end development guide and roadmap designed to help engineers master the skills and professional standards required for modern web development. It serves as a technical reference for mastering HTML, CSS, and JavaScript, providing structured learning paths and a map of the professional competencies needed to transition from a beginner to a professional web engineer. The resource functions as a categorized directory and ecosystem overview of the JavaScript landscape. It catalogs industry-standard frameworks, libraries, and utilities, offering specific recomm

CS-Base is a comprehensive educational platform and technical repository designed to support software engineers in mastering backend architecture, artificial intelligence engineering, and career development. It functions as a centralized knowledge hub that combines illustrated theoretical tutorials with practical, project-based learning to bridge the gap between foundational computer science concepts and professional industry requirements. The project distinguishes itself by integrating a robust career mentorship framework with advanced AI engineering resources. It provides users with tools f

This repository serves as a machine learning educational archive and technical knowledge base. It provides a structured collection of study notes and documentation designed to assist learners in mastering fundamental machine learning algorithms, mathematical foundations, and predictive modeling concepts. The project functions as an open-source learning resource that facilitates collaborative knowledge management and educational archiving. By organizing complex technical topics into a searchable, hierarchical repository, it supports independent study and preparation for professional data scien

This project is a community-curated knowledge base and directory designed to support software developers and designers. It functions as a centralized hub for technical resources, offering structured learning paths, development utilities, and professional networking opportunities through a version-controlled repository. The platform distinguishes itself through a decentralized curation model, where the entire knowledge base is maintained via peer-reviewed contributions. By utilizing a git-based workflow, the community collectively verifies and updates technical information, ensuring the direct