This step is independent of your OS choice, the downloaded image can be used on any OS.
However, the image is specific to the target hardware, as its name should reflect it.
Download Lakka for OrangePi Win
Download Lakka for Pine64 Plus
Download Lakka for Banana Pi M2 Plus
Download Lakka for Libretech H3
Download Lakka for Orange Pi 2
Download Lakka for Orange Pi Lite
Download Lakka for Orange Pi One
Download Lakka for Orange Pi PC Plus
Download Lakka for Orange Pi PC
Download Lakka for Orange Pi Plus
Download Lakka for Orange Pi Plus 2E
Download Lakka for Orange Pi 3
Download Lakka for Orange Pi One Plus
Download links for development images: