Systemd will save and restore your random seed on boot: http://t.co/K92LyaMr … . That would have fixed a number of embedded system exploits.
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One remarkable feature of Smalltalk is that you can save your current state and restore the app in exactly the same state later.
In normal applications, the user is dependent on the app developer having implemented this feature.
It's wiser to have a simple backup with an awkward restore process than the opposite. Simple backup schemes get run.