Package on Linux for other platforms

How to package a game on Linux for other platforms?
I want to pack for Windows and macOS. I can’t find any information.

Sadly you cannot. You need VS studio for Windows and XCode for macos(Might be lying on this one - never tried).

The way I do it is I have a windows VM that does the Windows builds for me(with PCI passtrough). You can more easily cross compile form Windows so it might be possible to use that for Mac too.