Very few are aware of linux-hardened let alone hardened-kernel.
https://github.com/anthraxx/linux-hardened and hardened kernel config (at least host) should be suggested to openwall kernel-hardening mailing list, other related mailing lists and other Linux distributions too.
- arch linux
- Qubes mailing list
- https://mirage.io (might not be aware of linux-hardened)
Most of them were previously interested in grsecurity but I don't see discussions on linux-hardened let alone hardened-kernel.
Ideal outcome: another distribution adopts hardened-kernel.
Very good outcome: more awareness for this project and new contributors joining linux-hardened and/or hardened-kernel project.
archlinux heard about linux-hardened but not hardened-kernel.
Similar to previous outreach: