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(sh.itjust.works)
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This is a place where you can post jokes, memes, humor, etc. related to programming!
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the macos file browser, Finder, lets you set a background for a folder, move file icons around to arbitrary positions, other shenanigans. in order for this to work across systems on removable storage media and network mounts, they have this.
Why not make the file when a change is made like with windows desktop.ini files?
I don't think the code is available for people to figure out whether there's a reason or if it's completely arbitrary.