<?php
/*
Plugin Name: My Plugin
*/

<?php

~/Sites/wordpress/wp-content/plugins/my-plugin $ ls -ll
total 16
-rwxrwxrwx@ 1 me  staff  34 13 Aug 21:43 my-plugin.php
-rwxrwxrwx@ 1 me  staff   6 13 Aug 21:44 uninstall.php

sudo chown www-data:www-data * -R
sudo usermod -a -G www-data username

sudo chown www-data:www-data * -R
sudo usermod -a -G www-data YOUR-USERNAME-HERE

define( 'FS_METHOD', 'ftpext' );