Set Up AsciiDoc for Architecture Documentation: arc42, PlantUML, and Docs-as-Code (Free, No Server)

How I stand up a free, open-source AsciiDoc toolchain for arc42 architecture docs — with PlantUML diagrams-as-code, PDF/HTML output, and Git-friendly diffs. No per-seat fees, no server, no vendor lock-in.

July 24, 2026 · 6 min · 1192 words · Hoa Nguyen