Vendor the command set the menu and shell depend on

bin/blob-audio-input-set

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# blob:summary=Set the default audio input and move active streams
+# blob:args=<node-id> <source-name>
+# blob:examples=blob audio input set default 43 alsa_input.pci-0000_00_1f.3.analog-stereo
+
+node_id=${1:-}
+source_name=${2:-}
+
+if [[ -z $node_id || -z $source_name ]]; then
+  echo "Usage: blob-audio-input-set <node-id> <source-name>" >&2
+  exit 1
+fi
+
+wpctl set-default "$node_id" 2>/dev/null || true
+pactl set-default-source "$source_name" 2>/dev/null || true
+
+pactl list short source-outputs 2>/dev/null | awk '{ print $1 }' | while read -r output; do
+  [[ -n $output ]] && pactl move-source-output "$output" "$source_name" 2>/dev/null || true
+done