It looks like a good intro, thanks. I wasn't aware of these technologies, but I knew it was possible to build an FS in RAM. So I just put these two keywords together.
FWIW, I learned a few things researching my answer.
(A prime validation for answering questions, BTW.)
My first read was that the old-school ramfs / ramdisk limitations still held. I can't actually even find documentation on them, though I'm pretty sure I'm not dreaming this.
