⚔️ Add notes about cross-compiling (macOS only)

README.md

@@ -58,7 +58,7 @@ For more information on using Hugo and its command-line interface, please refer
 | Platform | Architecture | Supported        |
 | -------- | ------------ | ---------------- |
 | macOS    | x86_64       | ✅               |
-| macOS    | arm64        | Coming soon      |
+| macOS    | arm64        | ✅               |
 | Linux    | amd64        | ✅               |
 | Linux    | arm64        | Coming soon      |
 | Windows  | x86_64       | ✅               |
@@ -88,6 +88,27 @@ pip install -e .              # editable installation
 pip install .                 # regular installation
 ```
 
+### Cross-compiling for different architectures
+
+> [!NOTE]
+> This functionality is implemented just for macOS at the moment, but it can be extended to other platforms as well in the near future.
+
+This package is capable of cross-compiling Hugo binaries for the same platform but different architectures and it can be used as follows.
+
+Say, on an Intel-based (x86_64) macOS machine:
+
+```bash
+export GOARCH="arm64"
+pip install .  # or pip install -e .
+```
+
+This will build a macOS arm64 binary distribution of Hugo that can be used on Apple Silicon-based (arm64) macOS machines. To build a binary distribution for the _target_ Intel-based (x86_64) macOS platform on the _host_ Apple Silicon-based (arm64) macOS machine, you can use the following command:
+
+```bash
+export GOARCH="amd64"
+pip install .  # or pip install -e .
+```
+
 ## Background
 
 Binaries for the Hugo static site generator are available for download from the [Hugo releases page](https://github.com/gohugoio/hugo/releases). These binaries have to be downloaded and placed in an appropriate location on the system manually and the PATH environment variable has to be updated to include said location.