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CSS blend modes and filters explained, including the backdrop-filter property behind the popular frosted-glass UI effect.
Managing process priority on Linux with nice and renice, plus ionice for deprioritizing disk-heavy background jobs.
JavaScript’s prototypal inheritance explained, and why class syntax is really just sugar over the same prototype chain lookup.
Big-O notation without the formal math: what O(1), O(log n), O(n), and O(n²) actually mean, with real code examples showing why the difference matters.
Idempotency in APIs explained through payment processing, and why POST requests specifically need an explicit idempotency key.
Bias, fairness, and explainability made concrete: how biased training data produces biased outcomes, why fairness definitions can conflict, and practical mitigation steps.