diff --git a/scripts/install b/scripts/install
index 33a92d2..5eebfaa 100755
--- a/scripts/install
+++ b/scripts/install
@@ -123,15 +123,13 @@ cp "$install_dir/build/package-lock.json" "$install_dir/live/package-lock.json"
 cp -r "$install_dir/build/libraries/" "$install_dir/live/libraries/"
 cp -r "$install_dir/build/services/" "$install_dir/live/services/"
 cp -r "$install_dir/build/patches/" "$install_dir/live/patches/"
+cp -r "$install_dir/build/server-ce/config" "$install_dir/config/"
+ynh_secure_remove --file="$install_dir/config/settings.js"
 
 ynh_add_config --template="../conf/production.json" --destination="$install_dir/build/server-ce/config/production.json"
-cp -r "$install_dir/build/server-ce/config" "$install_dir/config/"
-cp -r "$install_dir/build/server-ce/config/" "$install_dir/live/services/history-v1/config/"
+ynh_add_config --template="../conf/production.json" --destination="$install_dir/live/services/history-v1/config/production.json"
+cp "$install_dir/build/server-ce/config/custom-environment-variables.json" "$install_dir/live/services/history-v1/config/"
 
-ynh_store_file_checksum --file="$install_dir/config/production.json"
-ynh_store_file_checksum --file="$install_dir/live/services/history-v1/config/production.json"
-
-ynh_secure_remove --file="$install_dir/config/settings.js"
 ynh_secure_remove --file="$install_dir/build"
 
 ynh_script_progression --message="Building app..."
@@ -226,4 +224,4 @@ ynh_systemd_action --service_name="$app-web" --action="start" --log_path="/var/l
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Installation of $app completed"
+ynh_script_progression --message="Installation of $app completed"
\ No newline at end of file
diff --git a/scripts/remove b/scripts/remove
index 3f6d0bc..49831f8 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -111,7 +111,6 @@ ynh_script_progression --message="Removing the MongoDB database..."
 # Remove a database if it exists, along with the associated user
 ynh_mongo_remove_db --db_user=$db_user --db_name=$db_name
 
-ynh_replace_string --match_string="engine: wiredTiger" --replace_string="#  engine:" --target_file="/etc/mongod.conf"
 ynh_replace_string --match_string="replication:" --replace_string="#replication:" --target_file="/etc/mongod.conf"
 ynh_replace_string --match_string="  replSetName: rs0" --replace_string="" --target_file="/etc/mongod.conf"
 
diff --git a/scripts/restore b/scripts/restore
index de25dca..b9284b1 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -37,7 +37,6 @@ ynh_mongo_setup_db --db_user=$db_user --db_name=$db_name
 #=================================================
 ynh_script_progression --message="Configuring MongoDB..." --weight=10
 
-ynh_replace_string --match_string="#  engine:" --replace_string="  engine: wiredTiger" --target_file="/etc/mongod.conf"
 ynh_replace_string --match_string="#replication:" --replace_string="replication:\n  replSetName: rs0" --target_file="/etc/mongod.conf"
 
 ynh_exec_warn_less systemctl enable mongod --quiet
diff --git a/scripts/upgrade b/scripts/upgrade
index bdf15c4..71ba3d1 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -57,7 +57,6 @@ ynh_script_progression --message="Ensuring downward compatibility..."
 #=================================================
 ynh_script_progression --message="Configuring MongoDB..." --weight=10
 
-ynh_replace_string --match_string="#  engine:" --replace_string="  engine: wiredTiger" --target_file="/etc/mongod.conf"
 ynh_replace_string --match_string="#replication:" --replace_string="replication:\n  replSetName: rs0" --target_file="/etc/mongod.conf"
 
 ynh_exec_warn_less systemctl enable mongod --quiet
@@ -123,17 +122,19 @@ chown $app:$app "$install_dir/settings.js"
 ynh_script_progression --message="Preparing app..."
 
 mkdir -p "$install_dir/live"
+cp "$install_dir/build/server-ce/genScript.js" "$install_dir/live/genScript.js"
+cp "$install_dir/build/server-ce/services.js" "$install_dir/live/services.js"
 cp "$install_dir/build/package.json" "$install_dir/live/package.json"
 cp "$install_dir/build/package-lock.json" "$install_dir/live/package-lock.json"
 cp -r "$install_dir/build/libraries/" "$install_dir/live/libraries/"
 cp -r "$install_dir/build/services/" "$install_dir/live/services/"
 cp -r "$install_dir/build/patches/" "$install_dir/live/patches/"
+cp -r "$install_dir/build/server-ce/config" "$install_dir/config/"
+ynh_secure_remove --file="$install_dir/config/settings.js"
 
 ynh_add_config --template="../conf/production.json" --destination="$install_dir/build/server-ce/config/production.json"
-cp -r "$install_dir/build/server-ce/config/" "$install_dir/config/"
-cp -r "$install_dir/build/server-ce/config/" "$install_dir/live/services/history-v1/config/"
-
-ynh_secure_remove --file="$install_dir/build"
+ynh_add_config --template="../conf/production.json" --destination="$install_dir/live/services/history-v1/config/production.json"
+cp "$install_dir/build/server-ce/config/custom-environment-variables.json" "$install_dir/live/services/history-v1/config/"
 
 ynh_script_progression --message="Building app..."
 pushd "$install_dir/live"