codecrafters-io/build-your-own-x

Master programming by recreating your favorite technologies from scratch.

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freeCodeCamp/freeCodeCamp

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

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EbookFoundation/free-programming-books

:books: Freely available programming books

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donnemartin/system-design-primer

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

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