Updated the Sample app and Widget targets in the Xcode project to make the app works for visionOS.

Attendi.xcodeproj/project.pbxproj

@@ -11,7 +11,7 @@
 		02870A292FF7FF530079EA3A /* Features in Frameworks */ = {isa = PBXBuildFile; productRef = 02870A282FF7FF530079EA3A /* Features */; };
 		0296F7F02FFAB1B600D2C5FC /* WidgetKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0296F7EF2FFAB1B600D2C5FC /* WidgetKit.framework */; };
 		0296F7F22FFAB1B600D2C5FC /* SwiftUI.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0296F7F12FFAB1B600D2C5FC /* SwiftUI.framework */; };
-		0296F7FF2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 0296F7EE2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex */; platformFilters = (ios, xros, ); settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
+		0296F7FF2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 0296F7EE2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex */; platformFilter = ios; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		02D46AFE2FFAE77500266643 /* Features in Frameworks */ = {isa = PBXBuildFile; productRef = 02D46AFD2FFAE77500266643 /* Features */; };
 /* End PBXBuildFile section */
 
@@ -342,10 +342,7 @@
 		};
 		0296F7FE2FFAB1B600D2C5FC /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
-			platformFilters = (
+			platformFilter = ios;
-				ios,
-				xros,
-			);
 			target = 0296F7ED2FFAB1B600D2C5FC /* AttendiWidgetExtension */;
 			targetProxy = 0296F7FD2FFAB1B600D2C5FC /* PBXContainerItemProxy */;
 		};
@@ -833,7 +830,7 @@
 				SDKROOT = auto;
 				SKIP_INSTALL = YES;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
-				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator watchos watchsimulator xros xrsimulator";
+				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
 				SUPPORTS_MACCATALYST = NO;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = "DEBUG $(inherited)";
 				SWIFT_APPROACHABLE_CONCURRENCY = YES;
@@ -841,7 +838,7 @@
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
 				SWIFT_VERSION = 6.0;
-				TARGETED_DEVICE_FAMILY = "1,2,4,7";
+				TARGETED_DEVICE_FAMILY = "1,2";
 				WATCHOS_DEPLOYMENT_TARGET = 26.0;
 				XROS_DEPLOYMENT_TARGET = 26.0;
 			};
@@ -925,14 +922,14 @@
 				SDKROOT = auto;
 				SKIP_INSTALL = YES;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
-				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator watchos watchsimulator xros xrsimulator";
+				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
 				SUPPORTS_MACCATALYST = NO;
 				SWIFT_APPROACHABLE_CONCURRENCY = YES;
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
 				SWIFT_VERSION = 6.0;
-				TARGETED_DEVICE_FAMILY = "1,2,4,7";
+				TARGETED_DEVICE_FAMILY = "1,2";
 				WATCHOS_DEPLOYMENT_TARGET = 26.0;
 				XROS_DEPLOYMENT_TARGET = 26.0;
 			};

Packages/Features/Sources/Notifying/Styles/Labels/NotificationLabelStyle.swift

@@ -45,10 +45,14 @@ public struct NotificationLabelStyle: LabelStyle {
         }
         .padding(.vertical, Constant.Padding.vertical)
         .padding(.horizontal, Constant.Padding.horizontal)
+        #if os(visionOS)
+        .glassBackgroundEffect(in: .capsule)
+        #else
         .glassEffect(
             .regular,
             in: .capsule
         )
+        #endif
     }
 
 }

Packages/Features/Sources/Recording/Styles/Buttons/RecordingButtonStyle.swift

@@ -3,7 +3,8 @@ import SwiftUI
 /// The button style for the controls of a ``RecordingView``.
 ///
 /// The style renders the button's label in the primary foreground color over a padded, circular Liquid Glass background — tinted by
-/// the color given at initialization — that reacts fluidly to presses. The whole button dims while disabled, and both the label and its
+/// the color given at initialization — that reacts fluidly to presses. On visionOS, where Liquid Glass is unavailable, the background is
+/// the platform's own glass material overlaid with the tint color. The whole button dims while disabled, and both the label and its
 /// padding scale relative to the current dynamic type size.
 struct RecordingButtonStyle: ButtonStyle {
 
@@ -52,6 +53,14 @@ struct RecordingButtonStyle: ButtonStyle {
             .padding(padding)
             .scaledToFit()
             .foregroundStyle(.primary.opacity(opacity))
+            #if os(visionOS)
+            .background(
+                tintColor.opacity(Constant.Opacity.tint),
+                in: .circle
+            )
+            .glassBackgroundEffect(in: .circle)
+            .opacity(opacity)
+            #else
             .glassEffect(
                 .regular
                     .tint(tintColor)
@@ -59,6 +68,7 @@ struct RecordingButtonStyle: ButtonStyle {
                 in: .circle
             )
             .opacity(opacity)
+            #endif
     }
 
 }
@@ -108,6 +118,8 @@ private enum Constant {
         static let disabled: Double = 0.5
         /// The opacity of an enabled button.
         static let enabled: Double = 1
+        /// The opacity of the tint color laid over the glass background on visionOS.
+        static let tint: Double = 0.5
     }
 
     /// The padding constants.

Packages/Features/Sources/Recording/Views/RecordingView.swift

@@ -81,54 +81,13 @@ public struct RecordingView: View {
                     .accessibilityValue(model.textTimerAccessible)
             }
 
+            #if os(visionOS)
+            controls
+            #else
             GlassEffectContainer {
-                HStack(
+                controls
-                    spacing: Constant.Spacing.stack
-                ) {
-                    if model.shouldShowActions {
-                        Button {
-                            model.pressedDiscard()
-                        } label: {
-                            Image.Icon.discard
-                                .resizable()
-                        }
-                        .buttonStyle(.recording(
-                            tintColor: .red
-                        ))
-                        .accessibilityLabel(.viewRecordingButtonDiscardLabel)
-                    }
-                    
-                    Button {
-                        model.pressedMain()
-                    } label: {
-                        Image(model.iconMain)
-                            .resizable()
-                    }
-                    .buttonStyle(.recording(
-                        tintColor: .yellow
-                    ))
-                    .disabled(model.shouldDisableMain)
-                    .accessibilityLabel(model.labelMain)
-
-                    if model.shouldShowActions {
-                        Button {
-                            model.pressedSend()
-                        } label: {
-                            if let icon = model.iconSend {
-                                Image(icon)
-                                    .resizable()
-                            } else {
-                                ProgressView()
-                            }
-                        }
-                        .buttonStyle(.recording(
-                            tintColor: .green
-                        ))
-                        .disabled(model.isProcessing)
-                        .accessibilityLabel(model.labelSend)
-                    }
-                }
             }
+            #endif
         }
         .animation(
             .easeInOut,
@@ -174,6 +133,64 @@ public struct RecordingView: View {
 
 }
 
+// MARK: - Subviews
+
+private extension RecordingView {
+
+    // MARK: Computed
+
+    /// The main, discard, and send buttons controlling the recording flow, laid out in a horizontal stack.
+    var controls: some View {
+        HStack(
+            spacing: Constant.Spacing.stack
+        ) {
+            if model.shouldShowActions {
+                Button {
+                    model.pressedDiscard()
+                } label: {
+                    Image.Icon.discard
+                        .resizable()
+                }
+                .buttonStyle(.recording(
+                    tintColor: .red
+                ))
+                .accessibilityLabel(.viewRecordingButtonDiscardLabel)
+            }
+            
+            Button {
+                model.pressedMain()
+            } label: {
+                Image(model.iconMain)
+                    .resizable()
+            }
+            .buttonStyle(.recording(
+                tintColor: .yellow
+            ))
+            .disabled(model.shouldDisableMain)
+            .accessibilityLabel(model.labelMain)
+
+            if model.shouldShowActions {
+                Button {
+                    model.pressedSend()
+                } label: {
+                    if let icon = model.iconSend {
+                        Image(icon)
+                            .resizable()
+                    } else {
+                        ProgressView()
+                    }
+                }
+                .buttonStyle(.recording(
+                    tintColor: .green
+                ))
+                .disabled(model.isProcessing)
+                .accessibilityLabel(model.labelSend)
+            }
+        }
+    }
+
+}
+
 // MARK: - Constants
 
 /// The constant values used across the view.