calm.like.a.bomb

Did you read the whole post? If so, did you go to his/her website?

I can tell you something: I’m using some free apps on my Android phone and never notice ads at home, but when I’m on the mobile network or on a different wifi (at work or some public place) I start seeing them.

Futo is not open source. Read its license.

ZFS comes from a plugin in OMV. You have to install omv-extras first, then install the plugin omvextras-zfs. Make sure you also install the proxmox kernel and reboot the server before installing zfs.