Storage

Use namespaces for option arrays and post-meta arrays:

$options = pu_options('theme_settings');
$options->get('brand_color', '#000000');

$meta = pu_meta($post_id, '_page_settings');
$meta->get('hero_title', '');

For progressive migrations, low-level pu_get(), pu_set(), pu_exists() and pu_delete() can resolve legacy and modern stores using preserve, lazy or copy.

Pressundo does not require destructive moves of legacy data.