title: Correct ARCHFLAGS value on Apple Silicon?
body: <p>On my previous, Intel-based Mac, I used to include</p>
  <pre><code>export ARCHFLAGS=&quot;-arch x86_64&quot;
  </code></pre>
  <p>in my shell resource file. What's the correct compilation flag on the new ARM-based Apple silicon? <code>arm</code>? <code>arm64</code>? <code>arm-64</code>? <code>arm_64</code>? There doesn't seem to be a lot of resources out there yet, any pointers greatly appreciated!</p>