It’s a Kali thing, @simon, and IIRC they are non-persistent environment running on RAM disks. Heck Eliot even wipe things out the hard way multiple times.
If you haven’t seen the show, @danct12, I highly recommend it, not for the hacking (which is cool and the theme makes it more engaging) but for the good drama writing, well-composed music and trippy visuals.
@danct12, I was referring to the actual set-up environment. It can be installed to hard disks, but you can also use it live (dd to a disk even for better speed) or install to boot on RAM disk. I’m actually on a NixOS install where the / is mounted from tmpfs with only /home, /etc and /var/log persisted.
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