Personal notebook · field notes & essays

Writing in public.

Personal notes about tools, systems, and small details. Some pieces ship with a live playground — type in and see what happens.

apr · 05

Your Bitcoin Is on Borrowed Time

● playground

An interactive deep-dive into post-quantum cryptography for blockchain — run real Dilithium, FALCON, and SPHINCS+ in your browser and see why the clock is ticking.

4 min →
apr · 04

Understanding Regex Search: From grep to Sparse N-grams

● playground

An interactive deep-dive into how text search evolved over 50 years — from scanning every file to scanning almost nothing.

4 min →