LibSass
LibSass is a C/C++ implementation of the Sass stylesheet language, designed to be embedded into other programs as a fast, portable compiler. It provides both a command-line interface and a C API, allowing developers to integrate Sass/SCSS compilation into build tools and applications.
LibSass implements the core Sass features, including variables, nesting, mixins, functions, and control directives, and supports
Usage and ecosystem: The library is used through language bindings (for example, Node.js bindings such as node-sass)
Status and history: LibSass was the main C/C++ implementation of Sass for embedding in non-Ruby environments.
The recommended alternative for new projects is Dart Sass. It provides the official, actively maintained implementation