Windows is the supported shop target. Download for your OS, then open How to install in that card — Windows will show a SmartScreen warning because the installer is not code-signed yet.
Download the x64 installer, then allow Windows to run it. Because Korigio is not yet signed with a publisher certificate, Windows treats it as unrecognized. That is expected.
The Windows warning is normal
We do not have a Windows code-signing license yet. Microsoft Defender SmartScreen will block the first launch until you choose to run the installer you downloaded from this site.
Windows protected your PC
More info→Run anyway
Allow this app to make changes?
Yes
01
Download the installer
Use the Download button above and save the file to this PC.
02
Open the installer
Double-click the downloaded file in your Downloads folder.
03
Bypass SmartScreen
When the window Windows protected your PC appears, click More info, then click Run anyway.
04
Allow changes
If User Account Control asks whether to allow this app to make changes to your device, click Yes.
05
Finish setup
Complete the installer, then open Korigio from the Start menu.