System design

Blueprints

Interactive system designs you take apart instead of read. Walk a request, push traffic until a box overheats, kill the database, and pin your own notes.

Blueprint 01 · High-level system designURL ShortenerShorten, redirect, count. Explore the read path, the write path, ID generation, and what breaks when one link goes viral.9 components · 7 tour stops · 12 probesOpen blueprint

BreakPy at reads.fyi. Content reviewed November 11, 2026.