sudo apt-get install software-properties-common dirmngr
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xF1656F24C74CD1D8
sudo add-apt-repository ‘deb [arch=amd64,i386,ppc64el] http://ftp.hosteurope.de/mirror/mariadb.org/repo/10.3/debian stretch main’
Only a full of Errors!
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