Various changes to desktop configuration

machines/desktop/config/sway/toggle-hdmi.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+set -eu
+
+OUTPUT="HDMI-A-2"
+
+active="$(swaymsg -t get_outputs -r \
+  | jq -r --arg o "$OUTPUT" '.[] | select(.name==$o) | .active')"
+
+case "$active" in
+  true)  swaymsg output "$OUTPUT" disable ;;
+  false) swaymsg output "$OUTPUT" enable ;;
+  *)
+    printf 'Output %s not found or jq parse error\n' "$OUTPUT" >&2
+    exit 1
+    ;;
+esac
+