diff --git a/README.md b/README.md
index e2406bb..0654f9a 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Along each page you will be able to see the statistics of each player: his races
 ## Installation
 
 ### Requirements
-To run the server you will need a web server with PHP and a MySQL or MariaDB database installed.
+To run the server you will need a web server with PHP (8.1 or newer) and a MySQL or MariaDB database installed.
 
 * Download the code or clone the repository.
 * You have to edit 2 files before uploading to the server:
diff --git a/env b/env
index 6e30e34..f359ec2 100644
--- a/env
+++ b/env
@@ -21,16 +21,9 @@
 #--------------------------------------------------------------------
 
 # app.baseURL = ''
+# If you have trouble with `.`, you could also use `_`.
+# app_baseURL = ''
 # app.forceGlobalSecureRequests = false
-
-# app.sessionDriver = 'CodeIgniter\Session\Handlers\FileHandler'
-# app.sessionCookieName = 'ci_session'
-# app.sessionExpiration = 7200
-# app.sessionSavePath = null
-# app.sessionMatchIP = false
-# app.sessionTimeToUpdate = 300
-# app.sessionRegenerateDestroy = false
-
 # app.CSPEnabled = false
 
 #--------------------------------------------------------------------
@@ -43,90 +36,34 @@
 # database.default.password = root
 # database.default.DBDriver = MySQLi
 # database.default.DBPrefix =
+# database.default.port = 3306
 
+# If you use MySQLi as tests, first update the values of Config\Database::$tests.
 # database.tests.hostname = localhost
-# database.tests.database = ci4
+# database.tests.database = ci4_test
 # database.tests.username = root
 # database.tests.password = root
 # database.tests.DBDriver = MySQLi
 # database.tests.DBPrefix =
-
-#--------------------------------------------------------------------
-# CONTENT SECURITY POLICY
-#--------------------------------------------------------------------
-
-# contentsecuritypolicy.reportOnly = false
-# contentsecuritypolicy.defaultSrc = 'none'
-# contentsecuritypolicy.scriptSrc = 'self'
-# contentsecuritypolicy.styleSrc = 'self'
-# contentsecuritypolicy.imageSrc = 'self'
-# contentsecuritypolicy.base_uri = null
-# contentsecuritypolicy.childSrc = null
-# contentsecuritypolicy.connectSrc = 'self'
-# contentsecuritypolicy.fontSrc = null
-# contentsecuritypolicy.formAction = null
-# contentsecuritypolicy.frameAncestors = null
-# contentsecuritypolicy.frameSrc = null
-# contentsecuritypolicy.mediaSrc = null
-# contentsecuritypolicy.objectSrc = null
-# contentsecuritypolicy.pluginTypes = null
-# contentsecuritypolicy.reportURI = null
-# contentsecuritypolicy.sandbox = false
-# contentsecuritypolicy.upgradeInsecureRequests = false
-
-#--------------------------------------------------------------------
-# COOKIE
-#--------------------------------------------------------------------
-
-# cookie.prefix = ''
-# cookie.expires = 0
-# cookie.path = '/'
-# cookie.domain = ''
-# cookie.secure = false
-# cookie.httponly = false
-# cookie.samesite = 'Lax'
-# cookie.raw = false
+# database.tests.charset = utf8mb4
+# database.tests.DBCollat = utf8mb4_general_ci
+# database.tests.port = 3306
 
 #--------------------------------------------------------------------
 # ENCRYPTION
 #--------------------------------------------------------------------
 
 # encryption.key =
-# encryption.driver = OpenSSL
-# encryption.blockSize = 16
-# encryption.digest = SHA512
 
 #--------------------------------------------------------------------
-# HONEYPOT
+# SESSION
 #--------------------------------------------------------------------
 
-# honeypot.hidden = 'true'
-# honeypot.label = 'Fill This Field'
-# honeypot.name = 'honeypot'
-# honeypot.template = '<label>{label}</label><input type="text" name="{name}" value=""/>'
-# honeypot.container = '<div style="display:none">{template}</div>'
-
-#--------------------------------------------------------------------
-# SECURITY
-#--------------------------------------------------------------------
-
-# security.csrfProtection = 'cookie'
-# security.tokenName = 'csrf_token_name'
-# security.headerName = 'X-CSRF-TOKEN'
-# security.cookieName = 'csrf_cookie_name'
-# security.expires = 7200
-# security.regenerate = true
-# security.redirect = true
-# security.samesite = 'Lax'
+# session.driver = 'CodeIgniter\Session\Handlers\FileHandler'
+# session.savePath = null
 
 #--------------------------------------------------------------------
 # LOGGER
 #--------------------------------------------------------------------
 
 # logger.threshold = 4
-
-#--------------------------------------------------------------------
-# CURLRequest
-#--------------------------------------------------------------------
-
-# curlrequest.shareOptions = true