You gotta be a little bit of a megalomaniac to think it's a good idea to write your own filesystem.
So the reasonable man uses Ext4 I guess.
its quite funny to me that ext4 very much mirrors him in that regard. its underpinning damn well everything, but you'd never know about it because it works so well.
This is less true when T'so asks questions at conferences, of course.
https://www.theregister.com/2024/09/02/rust_for_linux_mainta...
And the unreasonable one writes his own Unix clone... and ends up putting several multi-million-dollar companies out of business.
I know which I admire more, TBH.
But I use ext4, yeah.