Avoid using navigateUp.

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/PreferencesFlowNode.kt

@@ -40,6 +40,7 @@ import io.element.android.libraries.architecture.BaseFlowNode
 import io.element.android.libraries.architecture.appyx.canPop
 import io.element.android.libraries.architecture.callback
 import io.element.android.libraries.architecture.createNode
+import io.element.android.libraries.architecture.navigation.BaseCallback
 import io.element.android.libraries.di.SessionScope
 import io.element.android.libraries.matrix.api.core.EventId
 import io.element.android.libraries.matrix.api.core.RoomId
@@ -267,7 +268,8 @@ class PreferencesFlowNode(
             }
             is NavTarget.UserProfile -> {
                 val inputs = EditUserProfileNode.Inputs(navTarget.matrixUser)
-                createNode<EditUserProfileNode>(buildContext, listOf(inputs))
+                val callback = BaseCallback { backstack.pop() }
+                createNode<EditUserProfileNode>(buildContext, listOf(inputs, callback))
             }
             NavTarget.LockScreenSettings -> {
                 lockScreenEntryPoint.createNode(

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/user/editprofile/EditUserProfileNode.kt

@@ -17,7 +17,9 @@ import dev.zacsweers.metro.Assisted
 import dev.zacsweers.metro.AssistedInject
 import io.element.android.annotations.ContributesNode
 import io.element.android.libraries.architecture.NodeInputs
+import io.element.android.libraries.architecture.callback
 import io.element.android.libraries.architecture.inputs
+import io.element.android.libraries.architecture.navigation.BaseCallback
 import io.element.android.libraries.architecture.navigation.BaseNavigator
 import io.element.android.libraries.di.SessionScope
 import io.element.android.libraries.matrix.api.user.MatrixUser
@@ -35,6 +37,7 @@ class EditUserProfileNode(
     ) : NodeInputs
 
     val matrixUser = inputs<Inputs>().matrixUser
+    val callback: BaseCallback = callback()
     val presenter = presenterFactory.create(
         matrixUser = matrixUser,
         navigator = this,
@@ -50,8 +53,5 @@ class EditUserProfileNode(
         )
     }
 
-    override fun close() {
-        // TODO Invoke callback
-        navigateUp()
-    }
+    override fun close() = callback.onDone()
 }

libraries/architecture/src/main/kotlin/io/element/android/libraries/architecture/navigation/BaseCallback.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.architecture.navigation
+
+import com.bumble.appyx.core.plugin.Plugin
+
+/**
+ * Base callback interface to be implemented by callers to handle results from nodes.
+ */
+fun interface BaseCallback : Plugin {
+    fun onDone()
+}

libraries/architecture/src/main/kotlin/io/element/android/libraries/architecture/navigation/BaseNavigator.kt

@@ -7,6 +7,9 @@
 
 package io.element.android.libraries.architecture.navigation
 
+/**
+ * Base navigator interface to be implemented by nodes to handle navigation actions from presenters.
+ */
 fun interface BaseNavigator {
     fun close()
 }