I wonder whether @alas has any opinions about XFS? I remember seeing it in the Gentoo handbook and wondering what the point is if there already is ext4... (We might've talked about this before? Sorry, my memory really is bad)
@vaporeon_ copy on write and data deduplication are useful fur portage, and XFS is old enough that Gentoo thinks it a safe and reliable choice fur getting those features
@vaporeon_ data get copied around a lot in portage’s opurrations; copy on write makes copying a free action, more or less just a link under the hood until the copied version is actually edited, in which case it’s silently actually copied (and then the copied version modified)