You can laugh - and maybe should laugh - but this is in fact a real thing. Swapping to NFS was... I won't say common, but not unheard of once upon a time, almos

You can laugh - and maybe should laugh - but this is in fact a real thing. Swapping to NFS was... I won't say common, but not unheard of once upon a time, almost always in diskless machines. You boot from the network, you mount your root filesystem and home over the network, you swap over the network. These days it's better to use NBD (network block device) for that, at least on Linux, but the option remains. And yes, it remains a pretty niche thing, because yeah network isn't exactly ideal performance, but it's available if you need it.