KDE Gear 21.08

The encryption, at least, is fairly important: without it, if /tmp is not a tmpfs, anyone stealing your machine later on and looking at unallocated portions of its disk will have access to large chunks of unencrypted scrollback. The vte developers thought this was a fairly bad thing... the compression is just useful because console output is terribly repetitive. (Doing both is surely harmful to the encryption, but these aren't national security secrets we're writing out here.)