diff --git a/scripts/backup b/scripts/backup
index 563b8b2..e211432 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -70,6 +70,16 @@ ynh_backup --src_path="/etc/logrotate.d/$app"
 
 ynh_backup --src_path="/etc/systemd/system/$app.service"
 
+#=================================================
+# BACKUP THE MYSQL DATABASE
+#=================================================
+ynh_print_info --message="Backing up the MySQL database..."
+
+### (However, things like MySQL dumps *do* take some time to run, though the
+### copy of the generated dump to the archive still happens later)
+
+ynh_mysql_dump_db --database="$db_name" > db.sql
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/install b/scripts/install
index aa5bf2e..c0ba3cb 100755
--- a/scripts/install
+++ b/scripts/install
@@ -28,6 +28,7 @@ domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
 language=$YNH_APP_ARG_LANGUAGE
+architecture=$YNH_ARCH
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -61,6 +62,8 @@ ynh_script_progression --message="Finding an available port..." --time --weight=
 # Find an available port
 port=$(ynh_find_port --port=6667)
 ynh_app_setting_set --app=$app --key=port --value=$port
+ynh_script_progression --message="Configuring firewall..." --time --weight=1
+ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port
 
 #=================================================
 # INSTALL DEPENDENCIES
@@ -77,6 +80,16 @@ ynh_script_progression --message="Configuring system user..." --time --weight=1
 # Create a system user
 ynh_system_user_create --username=$app --home_dir="$final_path"
 
+#=================================================
+# CREATE A MYSQL DATABASE
+#=================================================
+ynh_script_progression --message="Creating a MySQL database..." --time --weight=1
+
+db_name=$(ynh_sanitize_dbid --db_name=$app)
+db_user=$db_name
+ynh_app_setting_set --app=$app --key=db_name --value=$db_name
+ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -84,12 +97,13 @@ ynh_script_progression --message="Setting up source files..." --time --weight=1
 
 ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source --dest_dir="$final_path" --source_id=$YNH_ARCH
+ynh_setup_source --dest_dir="$final_path" --source_id="$architecture"
 ynh_setup_source --dest_dir="$final_path" --source_id=ldap
 
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
+chmod +x "$final_path/ergo"
 
 #=================================================
 # NGINX CONFIGURATION
diff --git a/scripts/remove b/scripts/remove
index 6d900f3..6a35297 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -65,6 +65,14 @@ ynh_script_progression --message="Removing NGINX web server configuration..." --
 # Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
+#=================================================
+# REMOVE THE MYSQL DATABASE
+#=================================================
+ynh_script_progression --message="Removing the MySQL database..." --time --weight=1
+
+# Remove a database if it exists, along with the associated user
+ynh_mysql_remove_db --db_user=$db_user --db_name=$db_name
+
 #=================================================
 # REMOVE DEPENDENCIES
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 4e4651e..fa21005 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -78,6 +78,15 @@ ynh_script_progression --message="Reinstalling dependencies..." --time --weight=
 # Define and install dependencies
 ynh_install_app_dependencies $pkg_dependencies
 
+#=================================================
+# RESTORE THE MYSQL DATABASE
+#=================================================
+ynh_script_progression --message="Restoring the MySQL database..." --time --weight=1
+
+db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
+ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
+
 #=================================================
 # RESTORE SYSTEMD
 #=================================================