Linux

How do programs that measure available space like 'lsblk', 'df', 'zfs list' etc see hardlinks and estimate disk space.

If I am trying to manage disk space, does the file system correctly display disk space (for example a zfs list)? Or does it think that I have duplicate files/directories because it can't tell what is a hardlink?

Also, during move operations, zfs dataset migrations, etc... does the hardlinked file continue tracking where the original is? I know it is almost impossible at a system level to discern which is the original.

@cyclohexane Is there any risk for me to try installing Linux on my MacBook (intel) and are there specific distros that run better on a macbook?

This is the dumbest question ever, but here goes: I'm trying to use pika to make regular backups of my whole system to my synology Nas. So I'd choose "remote", but no matter what I enter after the SMB it doesn't take it. How do I back up to my synology Nas using pika? I like pika because the UI is fucking stupid simple, except this one little nugget.