#system-design
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📌 1. Problem Statement Design a Tic Tac Toe game that: Supports configurable board size (N × N) Supports 2 players Validates moves Detects win...
Master Rate Limiter LLD and Concurrency · 📌 1. Functional Requirements A Rate Limiter system should: Limit requests per client/user Support multiple...
Designing Safe Multi-Tenant Systems Multi-tenancy doesn’t fail because of traffic.It fails because one customer behaves differently than the...
When “now” is different everywhere In distributed systems, time is a guess.And guesses break correctness. 1️⃣ The False Assumption (Root of All Time...
When your system is fast, scalable — and still wrong Most production bugs are not caused by slowness.They are caused by multiple things happening at...
Why “10k RPS” tells you almost nothing Systems don’t fail because of traffic.They fail because of work. 1️⃣ The Most Dangerous Metric in System...
