Sigh plugin for postcss. Use in your Sigh.js pipelines and send in whatever postcss-plugins you like.
Does NOT run in the Sigh process pool because of plugin injection functionality.
npm install --save-dev sigh-postcss
then add something like this to your sigh.js
:
pipeline.js = [
glob({ basePath: 'src' }, '**/*.css'),
postcss( [require('postcss-simple-vars')] ), // add plugins as array
write('build/assets')
]