There are (were?) X client libraries. Last time I set up a "headless" server, I only installed the client libraries. I also configured SSH for X forwarding. I did notice that the option for installing the X server was enabled by default. I disabled that with no problems.

In reply to Re^5: Best/Fast/Simple way to add a GUI to a batch process by RonW
in thread Best/Fast/Simple way to add a GUI to a batch process by vitoco

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