delta/config/delta.php

<?php
return [
	'domain' => [
		'landing' => env('DOMAIN_LANDING', 'pixelfed.org'),
		'join' => env('DOMAIN_JOIN', 'beta.joinpixelfed.org'),
		'img-proxy' => env('DOMAIN_IMGPROXY', 'px03-camo.pixelfedcdn.com')
	],
];