I have been develop an extension for mini cart alert after adding product in Magento 2.x. It will focus to customer for attention. Customer can check what he added product into cart. Specially it will help to B2B customer.
After install the extension run following command with cli mode.
php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy -f
php bin/magento cache:clean
php bin/magento cache:flush
If you face any issue please let me know.