Swapspace VS rwfus

Swapfile managed by swapspace plus zswap. Top tier combo

So you can't even google? dev page is here Its already part of the repos for major distros but in fo some reason you had to or wanted to compile it it has cleanly laid out instructions that a child could follow.

To enable Ubuntu to mimic Windows and macOS swap files consider installing the package swapspace, the dynamic swap space manager. It's in the Ubuntu repository.

Windows will increase the size of the swapfile as needed. Linux by default does not do so. If you need that capability have a look at swapspace.

there is a program called SwapSpace that should handle dynamically adding swap files as needed. it's like 2 years old so no telling if it still works.

Install Swapspace (https://github.com/Tookmund/Swapspace), it is a dynamic swap manager for Linux. Essentially, UE5 needs a lot of RAM, sometimes it will try to get more than you can offer. Swapspace will create, manage, and delete swap files to deal with unseen RAM requirements. (You will feel small freezes for a couple of milliseconds when it creates a new swap file, but other than that it will go on in a breeze.) Just run sudo apt install swapspace and you are off.

You can use https://github.com/ValShaped/rwfus

Reason is, that valves os is based on arch linux, but they locked all the system partitions down to read only. You can unlock them or use tools to lay a fake redirect layer over them (see: https://github.com/ValShaped/rwfus), but thats advanced users stuff.

I use this with regular steamos works between channel switches on 3.5 https://github.com/ValShaped/rwfus

I'm using rwfus

I'm using rwfus to create an overlayfs over the rootfs so that packages and other changes persist across updates

I also might want to install a few other basic tools going forward, so rwfus was a great choice.