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# Concurrency and Cross-Platform Compatibility

Our Python package uses `from multiprocessing import freeze_support` to ensure cross-platform compatibility when using concurrency. This line is **required** in entry-point blocks on:

* **Windows**, which always uses the `spawn` start method
* **macOS with Apple Silicon** (M1/M2/M3/M4) when using Python installed via Homebrew, which also defaults to `spawn`

While it's a no-op on most Linux systems (which use `fork` by default), including `freeze_support()` ensures safe and consistent behavior across all platforms, especially when running our scripts and pip package that use multiprocessing or multi-threaded APIs.