git clone https://github.com/axet/android-x86-iso-creator.git
cd android-x86-iso-creator
# Place your Android 15 system.img, ramdisk.img, kernel into the folder
./mkgenericiso -s system.img -k kernel -r ramdisk.img -o android15.iso
If you just want to try Android 15 without ISO creation:
If you only need media files (video, audio): android+15+iso