designtopack/public/site/plugins/user-projects/index.php

<?php

Kirby::plugin('adrienpayet/pdc-authorized-projects', [
  'userMethods' => [
    'currentProjects' => function() {
      if ($this->role() == 'admin') {
        return page('projects')->children()->listed();
      }
      return page('projects')->children()->listed()->filter(function($project) {
        return $project->users()->toUsers()->has($this);
      });
    },
    'archivedProjects' => function() {
      if ($this->role() == 'admin') {
        return page('projects')->children()->unlisted();
      }
      return page('projects')->children()->unlisted()->filter(function($project) {
        return $project->users()->toUsers()->has($this);
      });
    },
  ]
]);