[zoobab]

"If the OS is immutable, where do you store personal data"

In a mounted folder.

"how do you perform updates?"

You use another image.

[javert]

I was interested in a little more detail. Is the home directory on another USB, or maybe a laptop's built-in SSD? To add new software, is he creating a new custom image every time? Is this practical as a daily driver?

[intelVISA]

And thus a new mind was awoken.

[javert]

This is patronizing. Especially since the response was tautological. You should not assume that I know nothing.