Vesta, which is powered by Geens NPO Platform and is a part of Atef, will allow you to have a completely encrypted and easy-to-use cloud application.
Through Vesta, you can not just keep track of your files, but you can timestamp them, keep different versions of a file and live edit your files on the cloud.
You can use Vesta for your sourcecode - as an alternative to GIT, but you can also keep track of your personal files, like pictures, backups, etc..