# About

URL: /docs/about/
Section: about
Tags: about, architecture, philosophy

--------------------------------------------------------------------------------

Architecture Three-layer design Surface, core, and engine layers. Philosophy Design principles The instincts that shape every decision. Comparison Chirp vs Flask vs FastAPI vs Django When to use what, and why Chirp exists. Shield Thread Safety Free-threading patterns How Chirp makes data races structurally impossible.

--------------------------------------------------------------------------------

Metadata:
- Word Count: 45
- Reading Time: 1 minutes