diff --git a/Package.swift b/Package.swift
index a6c8489..8af0cd4 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,10 +1,10 @@
-// swift-tools-version: 5.5
+// swift-tools-version: 5.9
 
 import PackageDescription
 
 let package = Package(
     name: "Controls",
-    platforms: [.macOS(.v12), .iOS(.v15)],
+    platforms: [.macOS(.v12), .iOS(.v15), .visionOS(.v1)],
     products: [.library(name: "Controls", targets: ["Controls"])],
     targets: [
         .target(name: "Controls", dependencies: []),
diff --git a/Sources/Controls/Implementations/SmallKnob.swift b/Sources/Controls/Implementations/SmallKnob.swift
index 23b4530..83ebb39 100644
--- a/Sources/Controls/Implementations/SmallKnob.swift
+++ b/Sources/Controls/Implementations/SmallKnob.swift
@@ -21,6 +21,15 @@ public struct SmallKnob: View {
         Double((value - range.lowerBound) / (range.upperBound - range.lowerBound))
     }
 
+    var offsetX: CGFloat {
+        -sin(normalizedValue * 1.6 * .pi + 0.2 * .pi) / 2.0 * 0.75
+    }
+
+    var offsetY: CGFloat {
+        cos(normalizedValue * 1.6 * .pi + 0.2 * .pi) / 2.0 * 0.75
+    }
+
+
     public var body: some View {
         Control(value: $value, in: range,
                 geometry: .twoDimensionalDrag(xSensitivity: 1, ySensitivity: 1)) { geo in
@@ -29,8 +38,7 @@ public struct SmallKnob: View {
                 Rectangle().foregroundColor(foregroundColor)
                     .frame(width: geo.size.width / 20, height: geo.size.height / 4)
                     .rotationEffect(Angle(radians: normalizedValue * 1.6 * .pi + 0.2 * .pi))
-                    .offset(x: -sin(normalizedValue * 1.6 * .pi + 0.2 * .pi) * geo.size.width / 2.0 * 0.75,
-                            y: cos(normalizedValue * 1.6 * .pi + 0.2 * .pi) * geo.size.height / 2.0 * 0.75)
+                    .offset(x: offsetX * Double(geo.size.width), y: offsetY * Double(geo.size.height))
             }.drawingGroup() // Drawing groups improve antialiasing of rotated indicator
         }
         .aspectRatio(CGSize(width: 1, height: 1), contentMode: .fit)
diff --git a/Sources/Controls/SingleTouchView.swift b/Sources/Controls/SingleTouchView.swift
index 5d31ecc..0c2481a 100644
--- a/Sources/Controls/SingleTouchView.swift
+++ b/Sources/Controls/SingleTouchView.swift
@@ -2,7 +2,7 @@ import SwiftUI
 
 public typealias TouchCallback = (CGPoint?) -> Void
 
-#if os(iOS)
+#if !os(macOS)
 
 import UIKit