At least when it comes to the German one, it’s essentially a rebranding of existing open source products packaged/adapted to work as a suite.
For example, for editing documents they are using Collabora online (Libreoffice-based), for chat it’s Matrix, for storage Nextcloud, email & calendar from Ox Cloud, etc.
They really should GPL it all. The US will steal it and create AWS services
At least when it comes to the German one, it’s essentially a rebranding of existing open source products packaged/adapted to work as a suite.
For example, for editing documents they are using Collabora online (Libreoffice-based), for chat it’s Matrix, for storage Nextcloud, email & calendar from Ox Cloud, etc.