Migrate from Enhanced Media Library to Filebird

eml-to-filebird.sh

wp plugin deactivate enhanced-media-library

wp plugin activate filebird

wp search-replace 'media_category' 'nt_wmc_folder'

for term_id in $(wp term list nt_wmc_folder --field=term_id)
do
  wp term meta set $term_id folder_type default
  wp term meta set $term_id folder_position 0
done

wp cache flush
wp transient delete --all

Also, sync folders with all languages by adding:

/**
 * Filebird: Sync attachment's folder
 */
add_filter('pll_copy_taxonomies', function ($taxonomies, $sync) {

  $taxonomies[] = 'nt_wmc_folder';
  return $taxonomies;

}, 10, 2);

For extra lazyness, here's the composer command to install the plugin
composer require wpackagist-plugin/filebird