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uh.. how much space? What terminal command did you run to get this listing?
 
Daisy Disk says "snapshots" are taking up 47GB and overall this 47GB is part of 110GB "system data" which is on TOP of the OS 24GB so i am trying to reduce all this clutter.
the command is tmutil listlocalsnapshots /
 
As far as I am aware, macOS should clean them up (i.e., only keep a couple of recents). However, you can manage them through Disk Utility:


Via CLI is probably fine too, but less chance of an “oops!” if you use a GUI, I think.
 
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