It appears that the upstream Debian unstable Linux kernel team now have that latest stable version of Linux 6.1 release, 6.1.4, fully available to download at https://deb.debian.org/debian/pool/main/l/linux/:

	linux_6.1.4-1.debian.tar.xz	2023-01-07 13:58	4.0M
	linux_6.1.4-1.dsc	2023-01-07 13:58	270K
	linux_6.1.4.orig.tar.xz	2023-01-07 13:58	131M

This means we can add a hard masked version of it to core-kit

This improvement will be tracking do just that and any new changes required to support a working sys-kernel/debian-sources version 6.1 on Funtoo Linux.