Make your very own archzfs-tied kernels Arch Linux repository.

archzfs-kernels-make.sh

#!/usr/bin/env bash -x

set -o nounset
set -o errexit

curl http://archzfs.com/archzfs/x86_64/archzfs.db | tar xJvf -

cat */desc | perl -e'while(<>) {
	if (m/^%DEPENDS/) {
	while(<>) {
		chomp;
		last if $_ eq "";
		m/linux.*=/ && $p{$_}++}
	}
};
foreach my $a (keys %p) {
	$a=~s/((.).*)=(.*)/https:\/\/archive.archlinux.org\/packages\/$2\/$1\/$1-$3-x86_64.pkg.tar.xz/;
	print "$a\n$a.sig\n";
}' > kernels.txt

rm -r zfs-*/ spl-*/

wget -i kernels.txt -nc -o kernels.log

repo-add archzfs-kernels.db.tar.xz *tar.xz

Obviously it won't clean up old kernel packages that will eventually fill up your multi-zettabyte storages.