Reference
Cheatsheets.
Dense, scannable one-pagers for the things you look up constantly — complexity, decoding params, status codes, latency numbers, the agent loop. Print them, bookmark them, share them.
Big-O Complexity
Time and space complexity of the data structures and algorithms you use every day.
Algorithms · open →LLM Sampling & Decoding
Every knob that shapes how a language model picks its next token — and sensible presets.
AI & LLMs · open →HTTP Status Codes
The response codes worth memorizing, grouped by class, with when to use each.
Web · open →System Design Napkin Math
The latency numbers, constants, and powers of ten for back-of-the-envelope estimates.
Systems & Backend · open →The Agent Loop Cheatsheet
The runtime of an AI agent on one page — the loop, context, failure modes, and defenses.
AI & LLMs · open →