This repository is a multi-language, open-source linear algebra textbook built with Quarto. It is not a software application or a data research pipeline; it is a documentation project that produces static HTML, PDF, EPUB, and LaTeX outputs. The core code consists of a Makefile for build automation, Python scripts for machine translation of the book content into six languages (Chinese, Vietnamese, Japanese, Korean, Spanish, German), and GitHub Actions workflows for CI/CD and deployment to GitHub Pages. The translation pipeline is the most sophisticated software component, featuring chunking with math/protection, SHA-256 checkpointing for resumability, parallel workers, and verification of translation completeness. The book content itself is extensive (100+ labs) but is structured as Quarto markdown files. The repository is actively maintained with recent commits, a changelog, and issue tracking. The primary value is educational, but the translation infrastructure and Quarto multi-language book pattern are reusable assets for other documentation projects.