Zig Build System

Handles everything around build.zig files for multi-file Zig projects: setting up executables and libraries, integrating C source files with proper flags and include paths, defining build-time options that compile into your code, and managing dependencies through build.zig.zon manifests. The documentation walks through practical examples like linking system libraries, creating modules that share code between targets, and wiring up test and run steps. Reach for this when you're past single-file zig run territory and need to structure a real project with multiple compilation units, especially if you're pulling in C code or third-party packages. The build.zig.zon hash workflow is covered, which saves the inevitable head-scratching when adding dependencies.