Add Mac OS publishing documentation

Co-authored-by: agocke <[email protected]>

Author: Copilot

docs/core/deploying/macos.md

@@ -0,0 +1,44 @@
+---
+title: Publish .NET apps for Mac OS
+description: Learn how to publish .NET applications for Mac OS, including signing, notarization, and app entitlements.
+author: agocke
+ms.author: angocke
+ms.date: 10/22/2025
+ms.topic: how-to
+ai-usage: ai-assisted
+---
+
+# Publish .NET apps for Mac OS
+
+Publishing .NET applications for Mac OS requires several additional steps compared to other platforms, due to Apple's security requirements.
+
+## Prerequisites
+
+Before you publish your .NET application for Mac OS, ensure you have the following:
+
+- **Apple Developer Account**: Needed for code signing and notarization.
+- **Xcode Command Line Tools**: Provides `codesign`, `altool`, and other utilities.
+- **.NET SDK**: Ensure you have the latest .NET SDK installed.
+
+## Publish your app
+
+Use one of the methods described in the [.NET application publishing overview](index.md) to produce an application. You can create either a framework-dependent or self-contained application.
+
+## Apphost and entry point
+
+.NET creates a native *apphost* executable as the entry point for your app. This apphost must be signed and, if your app uses special capabilities, it must be assigned the appropriate **entitlements**.
+
+### Entitlements for CoreCLR apps
+
+For CoreCLR apps, the `com.apple.security.cs.allow-jit` entitlement is required.
+
+### Entitlements for Native AOT apps
+
+For Native AOT apps, no entitlements are required.
+
+## Sign and notarize
+
+Use Apple's developer documentation to sign and notarize the binary.
+
+> [!WARNING]
+> Failing to sign and notarize your app might result in users seeing security warnings or being unable to launch your application.