you might want to check out ownCloud[0] if you're purely interested in file sharing. Its all open source and you can run your own server. I can't attest to how

you might want to check out ownCloud[0] if you're purely interested in file sharing. Its all open source and you can run your own server. I can't attest to how well it runs currently, as I haven't used it for a few years, but I used it a couple years ago and it was pretty solid [0]: https://owncloud.com/ https://owncloud.com/