@flohack It seems the images have been removed from the nextcloud server, which is too bad, because your halium-boot and vendor images were also working with droidian.
I've been struggling to build and package the kernel myself, but your images work.
If you get a chance to rebuild, would you please add waydroid support? All you need in your defconfig is
.I have it working on my bootimage, but it has other problems.