Nextcloud

Nextcloud lets you access and share files, calendars, contacts, mail, and more from any device, on your terms. It is for people who want to reach these items and decide how they share them across the devices they use. Files can be accessed as well as shared. The same applies to calendars, contacts, and mail, so the program supports several kinds of information instead of files alone. Its device-wide access also means users are not limited to one kind of device. One practical limitation is that using Nextcloud still requires a device; the program provides access from devices, not without them. Within that condition, users can reach and share their files, calendars, contacts, mail, and other items from any device they choose. Nextcloud keeps the decision to access or share those items on the user's terms.