Please, don't hesitate and share with us any other remarkable free software you know/you use and tell us why you consider it so useful.
Thanks in advance for your contribution.
The free teaching team ;)
Nextcloud Hub is the industry-leading, fully open-source, on-premises content collaboration platform. Teams access, share and edit their documents, chat and participate in video calls and manage their mail and calendar and projects across mobile, desktop and web interfaces.
