+                       'site' => [
+                               'donate' => 'https://paypal.me/milongaraphael',
+                               'ico' => '@RapsysAir/ico/icon.ico',
+                               'logo' => '@RapsysAir/png/logo.png',
+                               //The png icon array
+                               //XXX: see https://www.emergeinteractive.com/insights/detail/the-essentials-of-favicons/
+                               //XXX: see https://caniuse.com/#feat=link-icon-svg
+                               'png' => [
+                                       //Default
+                                       256 => '@RapsysAir/png/icon.256.png',
+
+                                       //For google
+                                       //Chrome for Android home screen icon
+                                       196 => '@RapsysAir/png/icon.196.png',
+                                       //Google Developer Web App Manifest Recommendation
+                                       192 => '@RapsysAir/png/icon.192.png',
+                                       //Chrome Web Store icon
+                                       128 => '@RapsysAir/png/icon.128.png',
+
+                                       //Fallback
+                                       32 => '@RapsysAir/png/icon.32.png',
+
+                                       //For apple
+                                       //XXX: old obsolete format: [57, 72, 76, 114, 120, 144]
+                                       //XXX: see https://webhint.io/docs/user-guide/hints/hint-apple-touch-icons/
+                                       //XXX: see https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html
+                                       //iPhone Retina
+                                       180 => '@RapsysAir/png/icon.180.png',
+                                       //iPad Retina touch icon
+                                       167 => '@RapsysAir/png/icon.167.png',
+                                       //iPad touch icon
+                                       152 => '@RapsysAir/png/icon.152.png',
+                                       //iOS7
+                                       120 => '@RapsysAir/png/icon.120.png',
+
+                                       //For windows
+                                       //XXX: see https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/dn255024(v=vs.85)
+                                       310 => '@RapsysAir/png/icon.310.png',
+                                       150 => '@RapsysAir/png/icon.150.png',
+                                       70 => '@RapsysAir/png/icon.70.png'
+                               ],
+                               'svg' => '@RapsysAir/svg/icon.svg',
+                               'title' => 'Libre Air',
+                               'url' => 'rapsys_air'
+                       ],
+                       'cache' => [
+                               'namespace' => 'airlibre',
+                               'lifetime' => 0
+                       ],
+                       'calendar' => [
+                               'calendar' => '%env(string:RAPSYSAIR_CALENDAR)',
+                               'prefix' => '%env(string:RAPSYSAIR_PREFIX)',
+                               'project' => '%env(string:RAPSYSAIR_PROJECT)',
+                               'client' => '%env(string:GOOGLE_CLIENT_ID)',
+                               'secret' => '%env(string:GOOGLE_CLIENT_SECRET)'
+                       ],
+                       'copy' => [
+                               'by' => 'Rapsys',
+                               'link' => 'https://rapsys.eu',
+                               'long' => 'All rights reserved',
+                               'short' => 'Copyright 2019-2021',
+                               'title' => 'Rapsys'
+                       ],
+                       'contact' => [
+                               'title' => 'Libre Air',
+                               'mail' => 'contact@airlibre.eu'
+                       ],
+                       'facebook' => [
+                               'apps' => [3728770287223690],
+                               'height' => 630,
+                               'width' => 1200
+                       ],
+                       'locale' => '%kernel.default_locale%',
+                       'locales' => '%kernel.translator.fallbacks%',
+                       'languages' => '%rapsys_user.languages%',
+                       'path' => [
+                               'cache' => '%kernel.project_dir%/var/cache',
+                               'public' => dirname(__DIR__).'/Resources/public'
+                       ]