Create and use a custom permission in your module
You can define your own permissions for the Drupal permissions page (/admin/people/permissions in modern Drupal, Drupal 8, 9, 10, and beyond) and then add conditional options to your code to do different things based on the role of the user and the permissions configured by a site administrator. See how!
Change the Text Field Maximum Length in Drupal 8
A small function to change the maximum length of a field that already has data in it.
