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Aug 8, 2023
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Update GettingStarted with note on M1 Macs #67765

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9 changes: 9 additions & 0 deletions docs/HowToGuides/GettingStarted.md
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Expand Up @@ -196,6 +196,15 @@ toolchain as a one-off, there are a couple of differences:
* If you installed and want to use Sccache: Run `sccache --version`; check
that this succeeds.

> **Note**
> If you are running on Apple Silicon hardware (M1, M2, etc), ensure you have
> the native arm64 build of these dependencies installed and configured in your PATH.
>
> e.g. running `file $(which python3)` should print "arm64".
>
> If it prints "x86_64", you are running Python in compatibility mode (Rosetta), and building Swift will fail.
> Running `uname -m` should also print "arm64", otherwise your terminal is running in Rosetta mode.

### The roles of different tools

At this point, it is worthwhile to pause for a moment
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