diff --git a/app/src/main/java/farm/hobbs/clippyauto/ui/SetupActivity.kt b/app/src/main/java/farm/hobbs/clippyauto/ui/SetupActivity.kt
index 4d40282..725b48c 100644
--- a/app/src/main/java/farm/hobbs/clippyauto/ui/SetupActivity.kt
+++ b/app/src/main/java/farm/hobbs/clippyauto/ui/SetupActivity.kt
@@ -1,30 +1,150 @@
 package farm.hobbs.clippyauto.ui
 
+import android.Manifest
+import android.content.pm.PackageManager
 import android.os.Bundle
+import android.widget.Button
+import android.widget.LinearLayout
+import android.widget.ScrollView
+import android.widget.TextView
 import androidx.appcompat.app.AppCompatActivity
-import farm.hobbs.clippyauto.R
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
+import farm.hobbs.clippyauto.VoiceLoop
+import farm.hobbs.clippyauto.matrix.MatrixRestClient
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 /**
- * Phone-side activity for initial setup and session monitoring.
- *
- * v1 MVP:
- * - Login to Matrix homeserver (first run)
- * - Show "session active" indicator during Android Auto use
- * - Display debrief summary notification after session ends
- *
- * v2:
- * - Full conversation transcript review
- * - Settings (silence thresholds, TTS voice, etc.)
+ * Phone-side activity for setup and standalone voice testing.
+ * The real UI is in Android Auto, but this lets you test the voice
+ * pipeline without needing a car or DHU.
  */
 class SetupActivity : AppCompatActivity() {
 
+    companion object {
+        private const val HOMESERVER = "https://mess.hobbs.farm"
+        private const val ROOM_ID = "!KSovCtghshGUfVDbQg:hobbs.farm"
+        private const val CLIPPY_USER = "@clippy:hobbs.farm"
+        private const val MATRIX_USER = "clippyauto"
+        private const val MATRIX_PASS = "ClippyAuto2026!"
+        private const val MIC_PERMISSION_CODE = 100
+    }
+
+    private val scope = CoroutineScope(Dispatchers.Main + SupervisorJob())
+    private var voiceLoop: VoiceLoop? = null
+    private lateinit var statusText: TextView
+    private lateinit var logText: TextView
+    private lateinit var talkButton: Button
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        // TODO: Build setup UI
-        // - Matrix homeserver URL (pre-filled: mess.hobbs.farm)
-        // - Username / password fields
-        // - Login button
-        // - Status: connected / disconnected
-        // - "Session active" indicator
+
+        val layout = LinearLayout(this).apply {
+            orientation = LinearLayout.VERTICAL
+            setPadding(48, 48, 48, 48)
+        }
+
+        // Title
+        layout.addView(TextView(this).apply {
+            text = "📎 ClippyAuto"
+            textSize = 28f
+            setPadding(0, 0, 0, 16)
+        })
+
+        // Status
+        statusText = TextView(this).apply {
+            text = "Tap Connect to start"
+            textSize = 18f
+            setPadding(0, 0, 0, 24)
+        }
+        layout.addView(statusText)
+
+        // Connect button
+        val connectButton = Button(this).apply {
+            text = "🔌 Connect to Matrix"
+            setOnClickListener { connectToMatrix() }
+        }
+        layout.addView(connectButton)
+
+        // Talk button
+        talkButton = Button(this).apply {
+            text = "🎙️ Talk to Clippy"
+            isEnabled = false
+            setOnClickListener { voiceLoop?.onTalkPressed() }
+        }
+        layout.addView(talkButton)
+
+        // Log output
+        logText = TextView(this).apply {
+            text = "Log:\n"
+            textSize = 12f
+            setPadding(0, 24, 0, 0)
+        }
+        val scroll = ScrollView(this).apply {
+            addView(logText)
+        }
+        layout.addView(scroll)
+
+        setContentView(layout)
+
+        // Request mic permission
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO)
+            != PackageManager.PERMISSION_GRANTED) {
+            ActivityCompat.requestPermissions(
+                this, arrayOf(Manifest.permission.RECORD_AUDIO), MIC_PERMISSION_CODE
+            )
+        }
+    }
+
+    private fun connectToMatrix() {
+        statusText.text = "Connecting to Matrix..."
+        log("Connecting to $HOMESERVER...")
+
+        val matrixClient = MatrixRestClient(HOMESERVER)
+
+        voiceLoop = VoiceLoop(
+            context = this,
+            matrixClient = matrixClient,
+            roomId = ROOM_ID,
+            clippyUserId = CLIPPY_USER,
+            onStateChange = { state, status ->
+                runOnUiThread {
+                    statusText.text = status
+                    log("State: $state → $status")
+                }
+            }
+        )
+
+        scope.launch {
+            val loggedIn = withContext(Dispatchers.IO) {
+                matrixClient.login(MATRIX_USER, MATRIX_PASS)
+            }
+            if (loggedIn) {
+                log("✅ Logged in as @clippyauto:hobbs.farm")
+                voiceLoop?.initialize()
+                voiceLoop?.startSession()
+                talkButton.isEnabled = true
+                statusText.text = "Connected! Tap Talk to Clippy"
+            } else {
+                log("❌ Login failed")
+                statusText.text = "⚠️ Matrix login failed"
+            }
+        }
+    }
+
+    private fun log(msg: String) {
+        runOnUiThread {
+            logText.append("$msg\n")
+        }
+    }
+
+    override fun onDestroy() {
+        voiceLoop?.endSession()
+        voiceLoop?.destroy()
+        super.onDestroy()
     }
 }