diff --git a/macos/swift-bar/switch-audio.30s.rb b/macos/swift-bar/switch-audio.30s.rb
new file mode 100755
index 00000000..1c83d6bb
--- /dev/null
+++ b/macos/swift-bar/switch-audio.30s.rb
@@ -0,0 +1,51 @@
+#!/usr/bin/env ruby
+
+# <swiftbar.hideAbout>true</swiftbar.hideAbout>
+# <swiftbar.hideRunInTerminal>true</swiftbar.hideRunInTerminal>
+# <swiftbar.hideLastUpdated>true</swiftbar.hideLastUpdated>
+# <swiftbar.hideDisablePlugin>true</swiftbar.hideDisablePlugin>
+# <swiftbar.refreshOnOpen>true</swiftbar.refreshOnOpen>
+
+require "json"
+
+switch_audio_source = "/opt/homebrew/bin/SwitchAudioSource"
+
+unless ARGV.empty?
+  type, id = ARGV
+  `#{switch_audio_source} -t #{type} -i #{id}`
+end
+
+audio_sources = `#{switch_audio_source} -a -f json`
+  .lines(chomp: true)
+  .map {|x| JSON.parse(x) }
+  .group_by {|x| x.fetch("type") }
+
+input = JSON.parse(`#{switch_audio_source} -c -f json -t input`)
+output = JSON.parse(`#{switch_audio_source} -c -f json -t output`)
+
+puts ":waveform: | symbolize=true"
+puts "---"
+
+audio_sources.each do |type,sources|
+  sources.each do |source|
+    name = source.fetch("name")
+    id = source.fetch("id")
+
+    sf_type = case type
+              when "input" then ":mic.fill:"
+              when "output" then ":speaker.wave.2.fill:"
+              else fail "Unexpected type: #{type}"
+              end
+
+    params = {
+      symbolize: true,
+      checked: [input, output].include?(source),
+      bash: __FILE__,
+      terminal: false,
+      param0: type,
+      param1: id,
+    }
+
+    puts "#{sf_type} #{name} | #{params.map {|k,v| "#{k}=#{v}"}.join(" ")}"
+  end
+end