Is there software to create your own cloud drive?

Question

Software and Internet Services

I would like to set up my own server to synchronize files and folders between my PC, work PC, laptop, macbook, phones, etc.

You need
1) A screenshot manager with uploading to disk and quick editing
2) Synchronization of the folders that I specified, synchronization of desktop files, documents and other system folders
3) Support for Android, Windows, IOS, MAC OS, Linux
4) Of course, synchronization of photos and video on the phone
5) The ability to quickly upload a file from a PC via the RMB menu
6) WEB interface
7) An adequate conflict resolution is desirable

In fact, software for raising your "Yandex disk"

Answer 1

Nextcloud

Answer 2

https://owncloud.org/

Answer 3

Nextcloud and so far only it

Answer 4

Synology has DS Cloud. There is folder synchronization, there are clients for android, Windows - for sure, for apple and linux - I don’t know, I need to clarify. There is a web muzzle.

Answer 5

Webdav, SFTP
And the software for synchronization over these protocols is a dime a dozen.