friendica/config/settings.config.php

<?php

// SETTINGS.PHP

/* This file declares the default values for the admin settings of Friendica.
 *
 * These values will be overridden by the admin settings page.
 *
 * Please don't edit this file directly as its content may change in the upcoming versions.
 */

return [
	'config' => [
		// info (String)
		// Plaintext description of this node, used in the /friendica module.
		'info' => '',

		// register_policy (Constant)
		// Your choices are REGISTER_OPEN, REGISTER_APPROVE, or REGISTER_CLOSED.
		// Be certain to create your own personal account before setting REGISTER_CLOSED.
		// REGISTER_APPROVE requires you set system.admin_email to the email address of an already registered person who can authorize and/or approve/deny the request.
		'register_policy' => REGISTER_CLOSED,

		// register_text (String)
		// Will be displayed prominently on the registration page.
		'register_text' => '',

		// sitename (String)
		// Displayed server name.
		'sitename' => 'Friendica Social Network',
	],
	'system' => [
		// account_abandon_days (Integer)
		// Will not waste system resources polling external sites for abandonded accounts.
		// Enter 0 for no time limit.
		'account_abandon_days' => 0,

		// addon (Comma-separated list)
		// Manual list of addons which are enabled on this system.
		'addon' => '',

		// allowed_themes (Comma-separated list)
		// Themes users can change to in their settings.
		'allowed_themes' => 'quattro,vier,duepuntozero,smoothly',

		// default_timezone (String)
		// Choose a default timezone. See https://secure.php.net/manual/en/timezones.php
		// It only applies to timestamps for anonymous viewers.
		'default_timezone' => 'UTC',

		// directory (String)
		// URL of the global directory.
		'directory' => 'https://dir.friendica.social',

		// forbidden_nicknames (Comma-separated list)
		// Prevents users from registering the specified nicknames on this node.
		// Default value comprises classic role names from RFC 2142.
		'forbidden_nicknames' => 'info, marketing, sales, support, abuse, noc, security, postmaster, hostmaster, usenet, news, webmaster, www, uucp, ftp, root, sysop',

		// jpeg_quality (Integer)
		// Sets the ImageMagick quality level for JPEG images. Values ranges from 50 (awful) to 100 (near perfect).
		'jpeg_quality' => 100,

		// language (String)
		// System default languague, inluding admin-created user default language.
		// Two-letters ISO 639-1 code.
		'language' => 'en',

		// max_image_length (Integer)
		// An alternate way of limiting picture upload sizes.
		// Specify the maximum pixel  length that pictures are allowed to be (for non-square pictures, it will apply to the longest side).
		// Pictures longer than this length will be resized to be this length (on the longest side, the other side will be scaled appropriately).
		// If you don't want to set a maximum length, set to -1.
		'max_image_length' => -1,

		// maximagesize (Integer)
		// Maximum size in bytes of an uploaded photo.
		'maximagesize' => 800000,

		// no_regfullname (Boolean)
		// Allow pseudonyms (true) or enforce a space between first name and last name in Full name, as an anti spam measure (false).
		'no_regfullname' => true,

		// optimize_max_tablesize (Integer)
		// Maximum table size (in MB) for the automatic optimization.
		// -1 to disable automatic optimization.
		//  0 to use internal default (100MB)
		'optimize_max_tablesize' => -1,

		// rino_encrypt (Integer)
		// Server-to-server private message encryption (RINO).
		// Encryption will only be provided if this setting is set to a non zero value on both servers.
		// Set to 0 to disable, 2 to enable, 1 is deprecated but won't need mcrypt.
		'rino_encrypt' => 2,

		// temppath (String)
		// Custom temporary file directory
		'temppath' => '',

		// theme (String)
		// System theme name.
		'theme' => 'vier',

		// url (String)
		// The fully-qualified URL of this Friendica node.
		// Used by the worker in a non-HTTP execution environment.
		'url' => '',
	],

	// Used in the admin settings to lock certain features
	'featurelock' => [
	],
];