How to install extension on magento2 :
1. copy file from src directory to your magento2 root directory.
2. go to your magento2 root directory.
3. run this command :
   - php bin/magento module:enable Viveum_Viveum
   - php bin/magento setup:upgrade
   - php bin/magento setup:di:compile
   - php bin/magento setup:static-content:deploy -f
   - php bin/magento cache:clean && php bin/magento cache:flush
   - php bin/magento cache:flush
4. setting folders and files permission.

How to reindex on magento2 :
1. go to your magento2 root directory.
2. run this command : php bin/magento indexer:reindex

How to update extension on magento2 :
1. copy file from src directory to your magento2 root directory.
2. go to your magento2 root directory.
3. run this command :
   - sudo rm -rf var/generation/*
   - sudo rm -rf pub/static/*
   - php bin/magento setup:upgrade
   - php bin/magento setup:di:compile
   - php bin/magento setup:static-content:deploy -f
   - php bin/magento cache:clean
   - php bin/magento cache:flush
4. setting folders and files permission.

How to deploy static content language :
1. go to your magento2 root directory.
2. run this command :
   - sudo rm -rf pub/static/*
   - php bin/magento setup:static-content:deploy -f
   - php bin/magento --ansi setup:static-content:deploy -f {language code}
     for example germany language :
	   - php bin/magento --ansi setup:static-content:deploy -f de_DE
3. setting folders dan files permission.
