title: What is the current state of wheel build reproducibility in Windows?
body: <p>I know there has been effort around making the wheel files reproducible when building the same python package twice, per release notes for 0.27.0 of wheel: <a href="https://wheel.readthedocs.io/en/stable/news.html" rel="nofollow noreferrer">https://wheel.readthedocs.io/en/stable/news.html</a> </p>
  
  <p>By "reproducible" I mean: "wheel files hash to the same hash each time built".  </p>
  
  <p>Reproducibility when compiling on the same machine with the same code / resources would be a good start --- across different machines with same code / resources would be even better.</p>
  
  <p>I've been trying to determine if there is similar progress on reproducible builds on Windows, and if not, what "hacks" can I do to make that happen? (for example, overriding an environment variable)</p>
  
  <p>The hack of last resort is spinning up a docker container just to compile my wheel file.  If I have to, I will.</p>