For experimentation we wrangled together a F96-CE_4-RT with the full real time kernel huge-6.1.38-ubun64oz-ao-RT-rt13-rc1 compiled and built by @ozsouth which needs some review.
The firmware fdrv SFS is from the latest build of 6.1.38 (with AUFS6.1) produced by the kernel-kit.
So far the kernel has behaved well in initial testing and shows promise as a solid component.
F96-CE_4-RT.iso 545 MiB
SHA1-MD5.txt
These systems are EXPERIMENTAL and are to be used at ones own risk.