In development mode assets within the scss folder will be automatically compiled and compressed.
You can change this by modifying the index.php file in the public folder:
<?php
require __DIR__ . '/../bootstrap/app.php';
/**
* PHP SASS Compiler
*/
if ( $app->mode === 'development' ) {
SassCompiler::run( "assets/scss/", "assets/css/", 'scss_formatter_compressed' );
}
$app->run();