diff --git a/scripts/install b/scripts/install
index 5a352bd..8d58b21 100644
--- a/scripts/install
+++ b/scripts/install
@@ -68,6 +68,7 @@ ynh_app_setting_set $app port $port
 #=================================================
 
 ynh_install_app_dependencies build-essential libssl-dev libpq-dev libpng-dev
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -83,69 +84,98 @@ sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
 
 if [ $is_public -eq 1 ];
 then
-	sudo sed -i "s@#--PRIVATE--@@g" /etc/nginx/conf.d/$domain.d/$app.conf
+	ynh_replace_string "#--PRIVATE--" "" "/etc/nginx/conf.d/$domain.d/$app.conf"
 fi
 
 ## Copy and fix variable into lstu config
-sudo cp ../conf/lstu.conf.template "${final_path}/lstu.conf"
-sudo sed -i "s@__DOMAIN__@$domain@g" "${final_path}/lstu.conf"
-sudo sed -i "s@__PATH__@$path@g" "${final_path}/lstu.conf"
-sudo sed -i "s@__PORT__@$port@g" "${final_path}/lstu.conf"
+cp ../conf/lstu.conf.template "${final_path}/lstu.conf"
+ynh_replace_string "__DOMAIN__" "$domain" "$final_path/lstu.conf"
+ynh_replace_string "__PATH__" "$path_url" "$final_path/lstu.conf"
+ynh_replace_string "__PORT__" "$port" "$final_path/lstu.conf"
 
 secret=$(ynh_string_random 24)
-CHECK_VAR "$secret" "secret empty"
-sudo sed -i "s@__SECRET__@$secret@g" "${final_path}/lstu.conf"
-STORE_MD5_CONFIG "lstu.conf" "${final_path}/lstu.conf"
+ynh_replace_string "__SECRET__" "$secret" "${final_path}/lstu.conf"
+ynh_store_file_checksum "lstu.conf" "${final_path}/lstu.conf"
 
-# Install systemd script
-sudo cp ../conf/lstu.service /etc/systemd/system/lstu.service
-sudo chown root: /etc/systemd/system/lstu.service
-sudo sed -i "s@__FINALPATH__@$final_path/@g" /etc/systemd/system/lstu.service
+#=================================================
+# SETUP SYSTEMD
+#=================================================
 
-# Install logrotate
-sudo cp ../conf/logrotate /etc/logrotate.d/$app
-sudo sed -i "s@__FINALPATH__@$final_path@g" /etc/logrotate.d/$app
+# Create a dedicated systemd config
+ynh_systemd_config
+
+#=================================================
+# SETUP LOGROTATE
+#=================================================
+
+# Use logrotate to manage application logfile(s)
+ynh_use_logrotate
+
+#=================================================
+# Installation of Carton
+#=================================================
 
-# Install Carton
 echo yes | sudo cpan Carton
 
-# Install lstu's dependencies via carton
-sudo mkdir -p /var/log/$app/
-cd $final_path
-sudo carton install 2>&1 | sudo tee -a "/var/log/$app/setup_carton.log"
+#=================================================
+# Installation with Carton
+#=================================================
 
+pushd $final_path
+carton install 2>&1 | sudo tee -a "/var/log/$app/setup_carton.log"
+popd
+
+#=================================================
 # Change variables in nginx configuration
-sudo sed -i "s@__PATH__@$path@g" /etc/nginx/conf.d/$domain.d/$app.conf
-sudo sed -i "s@__PORT__@$port@g" /etc/nginx/conf.d/$domain.d/$app.conf
+#=================================================
 
+ynh_replace_string "__PATH__" "$path" "/etc/nginx/conf.d/$domain.d/$app.conf"
+ynh_replace_string "__PORT__" "$port" "/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
 # Make app public or private
+#=================================================
+
 ynh_app_setting_set $app skipped_uris "/"
 if [ $is_public -eq 0 ];
 then	# If the app is private, only the shortened URLs are publics
 	if [ "$path" == "/" ]; then
 		path=""
 	fi
-	ynh_app_setting_set $app protected_regex "$domain_regex$path/login$","$domain_regex$path/logout$","$domain_regex$path/api$","$domain_regex$path/extensions$","$domain_regex$path/stats$","$domain_regex$path/d/.*$","$domain_regex$path/a$","$domain_regex$path/$"
+	ynh_app_setting_set $app protected_regex "$domain_regex$path_url/login$","$domain_regex$path_url/logout$","$domain_regex$path_url/api$","$domain_regex$path_url/extensions$","$domain_regex$path_url/stats$","$domain_regex$path_url/d/.*$","$domain_regex$path_url/a$","$domain_regex$path_url/$"
 fi
 
+#=================================================
 # Making log symbolic link to /var/log
-sudo touch /var/log/$app/production.log 
-sudo chown www-data: /var/log/$app/production.log
-sudo ln -s /var/log/$app/production.log "$final_path/log/production.log"
+#=================================================
 
+touch /var/log/$app/production.log 
+chown www-data: /var/log/$app/production.log
+ln -s /var/log/$app/production.log "$final_path/log/production.log"
+
+#=================================================
 # Configure owner
+#=================================================
+
 sudo chown -R www-data: $final_path
 
+#=================================================
 # Start lstu
-sudo systemctl daemon-reload
-sudo systemctl start lstu.service
-sudo systemctl enable lstu.service
+#=================================================
 
+systemctl daemon-reload
+systemctl start lstu.service
+systemctl enable lstu.service
+
+#=================================================
 # Set right permissions on new files created at first start
+#=================================================
+
 sudo chown -R www-data: "$final_path"
 
+#=================================================
 # Add lstu as a service
-sudo yunohost service add lstu -l $final_path/log/production.log
+#=================================================
 
 if [ $is_public -eq 0 ];
 then
@@ -155,5 +185,8 @@ then
 	sudo yunohost app ssowatconf
 fi
 
+#=================================================
 # Reload Nginx
+#=================================================
+
 sudo service nginx reload