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Programmers

Software Engineering•rex.mindmeld360.com
Technology
Software Engineering Best Practices, System Design, High Scale, Algorithms, Math, Programming Languages, Statistics, Machine Learning, Databases, Front Ends, Frameworks, Low Level Machine Structure, Papers and Computing, Computer Science Book Reviews - Everything!
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Episodes

Design Local Delivery Service - GoPuff - System Design Interview Series

RexIDE - https://rex.mindmeld360.com In this episode, we design a local, ultra-fast delivery system inspired by GoPuff . We break down: service boundaries (ordering, inventory, dispatch) real-time courier assignment warehouse-centric delivery vs marketplace models latency, batching, and failure scenarios

Jan 24, 2026•31 min

Java Memory Model (JMM)

RexIDE - https://rex.mindmeld360.com We explore the fundamental concept of Happens-Before (HB) —not a measure of time, but a formal mathematical relationship that provides the only real guarantee of visibility and ordering in a multi-threaded world. Without an HB edge, your threads are effectively living in different realities, where one thread might see an object has been published but observe its internal fields as stale or uninitialized zeros....

Jan 22, 2026•29 min
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