Removing `site` directory from ProcessWire default paths

.htaccess

RewriteEngine On

# Redirect /assets to /site/assets
RewriteCond %{REQUEST_URI} ^/assets
RewriteRule ^assets(.*)$ /site/assets$1 [L]

# Redirect /templates to /site/templates
RewriteCond %{REQUEST_URI} ^/templates
RewriteRule ^templates(.*)$ /site/templates$1 [L]

# Block direct access to /site/assets and /site/templates
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /site/(assets|templates)
RewriteRule ^site/(assets|templates)(.*)$ - [F,L]

init.php

<?php

// Use `sanitizedUrl($config->urls->templates)` instead pure `$config->urls->templates` in your template php files.
function sanitizedUrl($path) {
	return str_replace('/site', '', $path);
}

ready.php

<?php

$wire->addHookAfter('Pagefile::url', function($event) {
	$url = $event->return;
	$event->return = sanitizedUrl($url);
});

$wire->addHookAfter('Pageimage::url', function($event) {
	$url = $event->return;
	$event->return = sanitizedUrl($url);
});

$wire->addHookAfter('Modules::getModuleInfo', function($event) {
	$moduleInfo = $event->return;
	if (isset($moduleInfo['assetUrl'])) {
		$moduleInfo['assetUrl'] = sanitizedUrl($moduleInfo['assetUrl']);
		$event->return = $moduleInfo;
	}
});