postcss-font-magician is a PostCSS plugin that automates the generation of @font-face CSS rules. It scans for font-family declarations in stylesheets, then looks up the referenced fonts across multiple sources: Google Fonts, Bootstrap's font stack, custom defined fonts, and locally hosted font files. The plugin generates complete @font-face blocks with proper font-weight, font-style, font-stretch, font-display, and unicode-range declarations, and inserts them into the CSS AST after @charset, @import, and @layer statements but before rule sets. It also supports an async mode that extracts @font-face rules into a separate JavaScript loader file. The architecture is a single PostCSS plugin file (index.js) that delegates to helper functions for font lookup, URL generation, and AST manipulation. The codebase is well-structured, with clear separation of concerns and comprehensive test coverage using snapshot-based testing.