The lowercase x11 directory was causing errors on macOS machines.
@ -35687,7 +35687,7 @@ with pkgs;
xsos = callPackage ../os-specific/linux/xsos { };
xmcp = callPackage ../tools/x11/xmcp { };
xmcp = callPackage ../tools/X11/xmcp { };
zk = callPackage ../applications/office/zk {};