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org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Building 70 Projects ranging from beginner to advanced so anyone can — learn from, build upon, use as a reference, or even copy directly. Gamified Cybersecurity learning 👇

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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.

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Linux полная шпаргалка по командам на русском. Больше полезного в виде наглядных картинок, совтеов от профи и примеров по работе с Linux, здесь 👇

This repository contains study materials for the Claude Certified Architect — Foundations certification.

Study guides for all four Anthropic Claude certifications: CCAO-F, CCDV-F, CCA-F, and CCAR-P. Exam domains and weights, comparison, decision framework, study paths, and free practice resources.

FCC China open source codebase and curriculum. Learn to code and help nonprofits.

Certified Kubernetes Administrator - CKA Course

A set of exercises to prepare for Certified Kubernetes Application Developer exam by Cloud Native Computing Foundation