I work for an it department who resells their old stock online, we scrub the disks before sales, physical destruction is not possible.

It won’t stop “anyone”, I’ve been lead to believe there are ways even after a single pass, to recover data. if I had anything to hide, I would use a physical destruction method, nothing else

Use shred , it will automate multiple random passes, and finish with a zero pass.

Look at someone who is cold, their lips are blue, someone who is hot, will be red.

I always wanted a similar system to what you see in racing video games, when they display input controls. A red and green bar on the rear of the vehicle which shows accelerator pedal position, and a red bar which, in real life would have to show deceleration, as a percentage of theoretical maximum, rather than pedal position, as in the games.

Take my upvote. I use owncloud, I have no need for apps on my self hosted cloud backup.

Perhaps not Foss, but definitely free (beer) , endless sky, available on steam