Add script to controll backlight brightness

backlight_brightness.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+set -e
+
+usage() {
+    echo "usage: $0 value brightness_path"
+    exit 1
+}
+
+if [ $# -ne 2 ]; then
+    usage
+fi
+
+actual_brightness=$(cat "$2/actual_brightness")
+max_brightness=$(cat "$2/max_brightness")
+new_brightness=$(("$actual_brightness" + "$1"))
+
+if [ "$new_brightness" -gt "$max_brightness" ]; then
+    new_brightness="$max_brightness"
+elif [ "$new_brightness" -lt "0" ]; then
+    new_brightness="0"
+fi
+
+echo "$new_brightness" > "$2/brightness"

borg_backup.sh

@@ -28,6 +28,7 @@ borg create                                  \
     --exclude '/var/tmp/*'                   \
     --exclude '/share/media/*'               \
     --exclude '/var/lib/libvirt/images/*'    \
+    --exclude '/home/finga/.rustup'          \
                                              \
     ::'{hostname}-{now}'                     \
     /etc                                     \