Implementing an animated boot splash image in linux-live kit scripts

I am using linux-live kit to produce a debian live distribution. However at the moment, the boot process involves only text output with a lot of [OK]. I would like to create a boot splash animation while the system is initialising instead of all this text output. Sort of like Zorin, Kali etc that show a logo while the system is booting. The initramfs image is created on the fly to allow for bundles overlays. You can view all the code here: https://github.com/Tomas-M/linux-live and specifically here: https://github.com/Tomas-M/linux-live/tree/master/initramfs How can I modify the initramfs_create script in order to implement plymouth boot animation? I already chose the animation I want. PS: I am not asking for ready-made code but just steps that I need to follow in order to add plymouth implementation in the generated initramfs image.