Quick TL;DR
This “Virtual Memory Areas (VMAs)” page is actually a one-stop hub by Hussein Nasser for all his backend and systems-engineering goodies. You’ll find hands-on courses on operating-system fundamentals, Node.js internals, backend troubleshooting, networking, database engineering, Python on the backend, NGINX, plus tips on performance and Page faults.
Beyond courses, there are links to his Medium articles, YouTube channel (with member-only content and an Arabic software-engineering channel), a podcast, and even a “buy me a coffee” link. Oh, and if you love pretty slides and thumbnails, he’s got a Canva affiliate plug too.
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