Initial Fedora brightness automation setup

bin/brightness-down-all

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CONFIG="${BRIGHTNESS_AUTOMATION_CONFIG:-$HOME/.config/brightness-automation/env}"
+if [[ -f "$CONFIG" ]]; then
+  # shellcheck disable=SC1090
+  source "$CONFIG"
+fi
+
+BACKLIGHT_DEVICE="${BRIGHTNESS_BACKLIGHT_DEVICE:-intel_backlight}"
+STEP="${BRIGHTNESS_STEP:-10}"
+
+brightnessctl -q -d "$BACKLIGHT_DEVICE" set "${STEP}%-"
+"$HOME/.local/bin/brightness-osd" || true