xserver-xorg-core - 2:1.20.4-1+deb10u9 main

The Xorg X server is an X server for several architectures and operating
systems, which is derived from the XFree86 4.x series of X servers.
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The Xorg server supports most modern graphics hardware from most vendors,
and supersedes all XFree86 X servers.
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More information about X.Org can be found at:

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This package is built from the X.org xserver module.