Add initial xlibre/X11 configs and installs, add misc install programs

installs_and_builds/custom_xlibre_default

@@ -0,0 +1,17 @@
+#!/bin/zsh
+
+# change package name; on artix it is 'pandoc-bin'
+${=BOX_SETUP_INSTALL_COMMAND} \
+    xlibre-xserver \
+    xlibre-video-amdgpu \
+    xlibre-input-libinput \
+    libx11 \
+    libxft \
+    libxinerama
+
+# `xlibre-video-amdgpu` depends on system gpu; ref lspci; maybe use `xlibre-drivers` instead
+# if `xlibre-input-libinput` doesn't work, try `xlibre-input-evdev` (generic module) if libinput does not work
+
+${=BOX_SETUP_INSTALL_COMMAND} \
+    xorg-xinit \
+    xorg-xrandr