# Supported Extensions > - ✅: Supported > - blank: Not supported or not yet ported ::: tip If an extension you need is missing, you can file a [feature request](https://github.com/crazywhalecc/static-php-cli/issues). Some extensions or their library dependencies have optional features (e.g. gd can optionally use libwebp, freetype, etc.). Running `bin/spc build gd --build-cli` alone will not include them — StaticPHP follows a minimal-dependency principle by default. :::