diff --git a/conf/add_sso_conf.py b/conf/add_sso_conf.py
deleted file mode 100644
index f6b7d41..0000000
--- a/conf/add_sso_conf.py
+++ /dev/null
@@ -1,28 +0,0 @@
-import json
-import sys
-
-domain = sys.argv[1]
-server_name = sys.argv[2]
-
-with open("/etc/ssowat/conf.json.persistent", "r", encoding='utf-8') as jsonFile:
-    data = json.load(jsonFile)
-
-    if "skipped_urls" not in data:
-        data["skipped_urls"] = []
-    if "protected_urls" not in data:
-        data["protected_urls"] = []
-
-    # Remove entry without the domain specified
-    if "/_matrix" in data["skipped_urls"]:
-        data["skipped_urls"].remove("/_matrix")
-
-    if domain + "/_matrix" not in data["skipped_urls"]:
-        data["skipped_urls"].append(domain + "/_matrix")
-    if server_name + "/.well-known/matrix/" not in data["skipped_urls"]:
-        data["skipped_urls"].append(server_name + "/.well-known/matrix/")
-
-    if domain +  "/_matrix/cas_server.php/login" not in data["protected_urls"]:
-        data["protected_urls"].append(domain + "/_matrix/cas_server.php/login")
-
-with open("/etc/ssowat/conf.json.persistent", "w", encoding='utf-8') as jsonFile:
-    jsonFile.write(json.dumps(data, indent=4, sort_keys=True))
diff --git a/conf/remove_sso_conf.py b/conf/remove_sso_conf.py
deleted file mode 100644
index d1aca96..0000000
--- a/conf/remove_sso_conf.py
+++ /dev/null
@@ -1,15 +0,0 @@
-import json
-import sys
-
-domain = sys.argv[1]
-server_name = sys.argv[2]
-
-with open("/etc/ssowat/conf.json.persistent", "r", encoding='utf-8') as jsonFile:
-    data = json.load(jsonFile)
-
-    data["skipped_urls"].remove(domain + "/_matrix")
-    data["skipped_urls"].remove(server_name + "/.well-known/matrix/")
-    data["protected_urls"].remove(domain + "/_matrix/cas_server.php/login")
-
-with open("/etc/ssowat/conf.json.persistent", "w", encoding='utf-8') as jsonFile:
-    jsonFile.write(json.dumps(data, indent=4, sort_keys=True))
diff --git a/scripts/install b/scripts/install
index ceaf927..d5b84c4 100644
--- a/scripts/install
+++ b/scripts/install
@@ -383,10 +383,9 @@ ynh_replace_string --match_string=__APP__ --replace_string=$app --target_file="$
 #=================================================
 ynh_script_progression --message="Configuring SSOwat..." --weight=1
 
-# Open access to server without a button the home
-# The script "add_sso_conf.py" will just add en entry for the path "/_matrix" in the sso conf.json.persistent file in the cathegory "skipped_urls".
-python3 ../conf/add_sso_conf.py $domain $server_name || ynh_die --message="Your file /etc/ssowat/conf.json.persistent doesn't respect the json syntax. Please fix the syntax to install this app. For more information see here: https://github.com/YunoHost-Apps/synapse_ynh/issues/32"
-ynh_permission_url --permission main --url $domain/_matrix/cas_server.php/login
+ynh_permission_create --permission "_matrix" --url "/_matrix" --allowed "visitors" --label "Matrix API (leave it open to visitors!)"
+ynh_permission_create --permission "well-known" --url "/.well-known/matrix/" --allowed "visitors" --label "Matrix's well-known URI (helps federation)"
+ynh_permission_create --permission "login" --url "/_matrix/cas_server.php/login" --allowed "all_users" --label "Which users should be allowed to log into your Matrix server"
 
 #=================================================
 # UPDATE HOOKS
diff --git a/scripts/remove b/scripts/remove
index 34ed766..42ab29d 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -75,13 +75,6 @@ ynh_script_progression --message="Removing dependencies" --weight=15
 # Remove metapackage and its dependencies
 ynh_remove_app_dependencies
 
-#=================================================
-# SETUP SSOWAT
-#=================================================
-
-# Remove the skipped url
-python3 ../conf/remove_sso_conf.py $domain $server_name
-
 #=================================================
 # REMOVE APP MAIN DIR
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 9b27ca4..ada2671 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -216,9 +216,9 @@ ynh_exec_warn_less yunohost firewall allow Both $turnserver_alt_tls_port
 #=================================================
 ynh_script_progression --message="Configuring SSOwat..."
 
-# Open access to server without a button the home
-# The script "add_sso_conf.py" will just add en entry for the path "/_matrix" in the sso conf.json.persistent file in the cathegory "skipped_urls".
-python3 ../settings/conf/add_sso_conf.py $domain $server_name || ynh_die --message="Your file /etc/ssowat/conf.json.persistent doesn't respect the json syntax. Please fix the syntax to install this app. For more information see here: https://github.com/YunoHost-Apps/synapse_ynh/issues/32"
+ynh_permission_create --permission "_matrix" --url "/_matrix" --allowed "visitors" --label "Matrix API (leave it open to visitors!)"
+ynh_permission_create --permission "well-known" --url "/.well-known/matrix/" --allowed "visitors" --label "Matrix's well-known URI (helps federation)"
+ynh_permission_create --permission "login" --url "/_matrix/cas_server.php/login" --allowed "all_users" --label "Which users should be allowed to log into your Matrix server"
 
 #=================================================
 # SETUP LOGROTATE
diff --git a/scripts/upgrade b/scripts/upgrade
index b3682fd..2cceb74 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -148,7 +148,7 @@ if [ -e "/var/lib/matrix-$app" ]; then
     fi
     mv "/var/lib/matrix-$app" "$data_path"
     # matrix-synapse:x:994:994::/var/lib/matrix-synapse:/usr/sbin/nologin
-    sed --in-place -r "s@matrix-$app\:x\:(\n*:\n*)\:\:/var/lib/matrix-$app\:/usr/sbin/nologin@matrix-$app\:x\:(\n*:\n*)\:\:$final_path\:/usr/sbin/nologin@g" /etc/passwd
+    ynh_replace_string "s@matrix-$app\:x\:(\n*:\n*)\:\:/var/lib/matrix-$app\:/usr/sbin/nologin@matrix-$app\:x\:(\n*:\n*)\:\:$final_path\:/usr/sbin/nologin@g" /etc/passwd
 fi
 
 #=================================================
@@ -451,10 +451,9 @@ ynh_add_fail2ban_config --use_template
 #=================================================
 ynh_script_progression --message="Configuring SSOwat..." --weight=1
 
-# Open access to server without a button the home
-# The script "add_sso_conf.py" will just add en entry for the path "/_matrix" in the sso conf.json.persistent file in the cathegory "skipped_urls".
-python3 ../conf/add_sso_conf.py $domain $server_name || ynh_die --message="Your file /etc/ssowat/conf.json.persistent doesn't respect the json syntax. Please fix the syntax to install this app. For more information see here: https://github.com/YunoHost-Apps/synapse_ynh/issues/32"
-ynh_permission_url --permission main --url $domain/_matrix/cas_server.php/login
+ynh_permission_create --permission "_matrix" --url "/_matrix" --allowed "visitors" --label "Matrix API (leave it open to visitors!)"
+ynh_permission_create --permission "well-known" --url "/.well-known/matrix/" --allowed "visitors" --label "Matrix's well-known URI (helps federation)"
+ynh_permission_create --permission "login" --url "/_matrix/cas_server.php/login" --allowed "all_users" --label "Which users should be allowed to log into your Matrix server"
 
 #=================================================
 # SECURE FILES AND DIRECTORIES