first commit

etc_org/X11/Xsession.d/35x11-common_xhost-local

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+# This file is sourced by Xsession(5), not executed.
+
+# If xhost (from x11-xserver-utils) is installed, use it to give access 
+# to the X server to any process from the same user on the local host.
+# Unlike other uses of xhost, this is safe since the kernel can check 
+# the actual owner of the calling process.
+
+if type xhost >/dev/null 2>&1; then
+  xhost +si:localuser:$(id -un) || :
+fi