Repository Index

🗂 The essential checklist for modern web development, for humans and AI agents

• frontend
• front-end-development
• front-end-developer-tool
• guidelines

This repository is maintained by Omar Santos (@santosomar) and includes thousands of resources related to ethical hacking, bug bounties, digital forensics and incident response (DFIR), AI security, vulnerability research, exploit development, reverse engineering, and more. 🔥 Also check: https://hackertraining.org

• hacking
• penetration-testing
• hacking-series
• cybersecurity

System design interview for IT companies

• interview
• interview-questions
• interview-preparation
• design-systems

Checklist of the most important security countermeasures when designing, testing, and releasing your API

• api
• security
• jwt
• oauth2

🔒 A compiled checklist of 300+ tips for protecting digital security and privacy in 2026

• privacy
• security
• censorship
• cybersecurity

Community guide to securing and improving privacy on macOS.

• apple
• macos
• security
• privacy

Security Guide for Developers

• security-checklist
• security-book
• security
• books

TranslatedThe Ultimate Guide to Making Money with AI Side Hustles: Learn how to leverage AI for some cool side gigs and rake in some extra cash. Check out the English version for more insights.

🎮 The only Front-End Performance Checklist that runs faster than the others

• frontend
• front-end-development
• front-end-developer-tool
• guidelines

Source code for Hacker101.com - a free online web and mobile security class.

• education
• hacking
• security
• hackerone

The OWASP Mobile Application Security Testing Guide (MASTG) is a comprehensive manual for mobile app security testing and reverse engineering. It describes technical processes for verifying the OWASP Mobile Security Weakness Enumeration (MASWE) weaknesses, which are in alignment with the OWASP MASVS.

• mobile-app
• pentesting
• android-application
• ios-app

Community curated list of templates for the nuclei engine to find security vulnerabilities.

• nuclei-templates
• nuclei
• bugbounty
• security

Useful CMake Examples

• cmake
• cpp
• tutorial
• clang

This guide details creating a secure Linux production system. OpenSCAP (C2S/CIS, STIG).

• linux
• linux-hardening
• linux-security
• security

:ballot_box_with_check: [Cheatsheet] Tips and tricks for Android Development

• android-development
• android-studio
• gradle
• cheatsheet

Claude Code guide in three levels, Beginner to Advanced: hands-on lessons with checked exercises, every volatile fact cited to its source. Independent community guide.

• agent-skills
• agentic-coding
• ai-agents
• anthropic

Full-stack .Net 10 Clean Architecture (Microservices, Modular Monolith, Monolith), Blazor, Angular 22, React 19, Vue 3.5, BFF with YARP, NextJs 16, Domain-Driven Design, CQRS, SOLID, Asp.Net Core Identity Custom Storage, OpenID Connect, EF Core, OpenTelemetry, SignalR, Background Services, Health Checks, Rate Limiting, Clouds (Azure, AWS, GCP), ...

• cqrs
• domain-driven-design
• clean-architecture
• oauth2

My own notes (drafts mostly) about software quality

• ebooks
• quality-assurance
• software-testing
• courses

A curated list of data mining papers about fraud detection.

• fraud-detection
• fraud-prevention
• fraud-checker
• fraud-management

Checklist of security precautions for Ruby on Rails applications.

• ruby
• ruby-on-rails
• rails
• security

Checklist for code reviews

• java
• concurrency
• checklist
• code-review

:white_check_mark: Validate links in awesome projects

• circleci
• travis-ci
• danger
• tool

Android App Security Checklist

Deployment checklist for securely deploying Docker