Umang Sinha

Written thoughts.

Writing Archive 5 Posts

A collection of essays, notes, and technical deep-dives on the systems I'm building.

8 Mar 2026 how spaced repetition actually works: the sm-2 algorithm

25 May 2025 Probabilistic Data Structures in Go: Building and Benchmarking a Bloom Filter

18 May 2025 PostgreSQL UUID Performance: Benchmarking Random (v4) and Time-based (v7) UUIDs

14 Sep 2024 Beyond JavaScript: Why 0.1 + 0.2 Doesn't Equal 0.3 in Programming

22 Jun 2024 The CORS Conundrum