Get the latest Windows Insider Preview (or wait for the official Creator Update; it's probably very close, the "preview" watermark is gone in Insider, so the current build looks like a release candidate).
Once you have it set up, look for "Mixed Reality Portal" in the Start menu. It will guide you through the setup, starting with a check that you have compatible hardware.
For a developer kit, I guess you follow the links to sign up at
Once you have it set up, look for "Mixed Reality Portal" in the Start menu. It will guide you through the setup, starting with a check that you have compatible hardware.
For a developer kit, I guess you follow the links to sign up at
https://blogs.windows.com/windowsexperience/2017/03/01/windo...
and pray...