diff --git a/Pilz/AssemblyAppVersion.cs b/Pilz/AssemblyAppVersion.cs
new file mode 100644
index 0000000..19fccf0
--- /dev/null
+++ b/Pilz/AssemblyAppVersion.cs
@@ -0,0 +1,17 @@
+using System.Reflection;
+
+namespace Pilz;
+
+[AttributeUsage(AttributeTargets.Assembly)]
+public class AssemblyAppVersionAttribute(string version, int build, AppChannel channel) : Attribute
+{
+    public AppVersion Version { get; } = new(new Version(version), build, channel);
+
+    public AssemblyAppVersionAttribute(string version) : this(version, 1)
+    {
+    }
+
+    public AssemblyAppVersionAttribute(string version, int build) : this(version, build, AppChannel.Stable)
+    {
+    }
+}
\ No newline at end of file
diff --git a/Pilz/Extensions/AssemblyExtensions.cs b/Pilz/Extensions/AssemblyExtensions.cs
new file mode 100644
index 0000000..cd0adb5
--- /dev/null
+++ b/Pilz/Extensions/AssemblyExtensions.cs
@@ -0,0 +1,11 @@
+using System.Reflection;
+
+namespace Pilz.Extensions;
+
+public static class AssemblyExtensions
+{
+    public static AppVersion GetAppVersion(this Assembly @this)
+    {
+        return @this.GetCustomAttribute<AssemblyAppVersionAttribute>()?.Version ?? new();
+    }
+}