Suggestion: add zswap support

[JaviLib]

Just like in Bazzite, I suggest to use zswap support, with lz4hc (fast and efficient) compression algorithm, and a default swapfile with the same size of the RAM. This can increase stability on heavy loads.
I think the size of de swapfile could be asked in the installer, and then make a ujust script to adjust it once the system is installed.

Also a vm.swappiness=180 is very convinient in sysctl.conf by default. This is a standard recommendation on systems with nvme as primary device, and it greatly benefits when zswap is activated.

What do you think?

[pauldoo]

I don't have strong opinions on the default setup (zram vs disk swap + zswap), or what th installer should offer, but I did write a post on how to manually switch to disk swap with zswap:

https://universal-blue.discourse.group/t/bug-report-bazzite-does-not-handle-oom-properly/11911/10?u=pauldoo

[sebjag]

FYI (Bazzite docs include SELinux context steps): https://docs.bazzite.gg/Advanced/swapfile/#create-the-swapfile