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 Raspberry Pi Zero / Zero W (arm)
Download Lakka for Raspberry Pi (arm)
Download Lakka for Retroflag GPI Case / Raspberry Pi Zero (arm)
Download Lakka for Retroflag GPI Case 2W / Raspbery Pi Zero 2 (aarch64)
Download Lakka for Retroflag GPI Case / Raspberry Pi Zero 2 (arm)
Download Lakka for Raspberry Pi 2 (arm)
Download Lakka for Raspberry Pi 3 (arm)
Download Lakka for Raspberry Pi 3 (aarch64)
Download Lakka for Raspberry Pi 4 (aarch64)
Download Lakka for Retroflag GPI Case 2 / Raspberry Pi Compute Module 4 (aarch64)
Download Lakka for PiBoy DMG / Raspberry Pi Compute Module 4 (aarch64)
Download Lakka for RetroDreamer / Raspberry Pi Compute Module 4 (aarch64)
Download links for development images:
Download Lakka for Raspberry Pi Zero / Zero W (arm)
Download Lakka for Raspberry Pi (arm)
Download Lakka for Retroflag GPi Case / Raspberry Pi Zero (arm)
Download Lakka for Retroflag GPi Case 2W / Raspberry Pi Zero 2 (aarch64)
Download Lakka for Retroflag GPi Case / Raspberry Pi Zero 2 (arm)
Download Lakka for Raspberry Pi 2 (arm)
Download Lakka for Raspberry Pi 3 (arm)
Download Lakka for Raspberry Pi 3 (aarch64)
Download Lakka for Raspberry Pi 4 (aarch64)
Download Lakka for GPi Case 2 / Raspberry Pi Compute Module 4 (aarch64)
Download Lakka for PiBoy DMG / Raspberry Pi Compute Module 4 (aarch64)
Download Lakka for RetroDreamer / Raspberry Pi Compute Module 4 (aarch64)