feature: shufflecake encryption without any metadata leakage (like Geli/ZFS)

Dear OpenBSD team,

*Describe the feature or enhancement*

As a security focused BSD, could you please consider assisting 
Shufflecake creator to port shufflecake to BSD to avoid encryption 
metadata / header leaks which both Geli and ZFS encryption currently have.

Please see app website + port assistance request.

https://shufflecake.net/

https://codeberg.org/shufflecake/shufflecake-c/issues/164

Why this request?

Geli / ZFS encryption leaks metadata such as geli header which confirms 
that the partition is encrypted. This allows an adversary to force you 
to reveal password (whether physically/litigation).

Shufflecake encryption is the next generation private encryption taking 
over from Veracrypt, allowing 15 layers of encryption each with 
plausible deniability and faster than LUKS and perhaps Geli too.

Shufflecake linux is implemented already for data partitions.

Shufflecake for boot OS is due to be release in 2026.

Having an option to implement Shufflecake encryption with full plausible 
deniability is the ideal private system, and the only thing holding me 
back from switching from Linux to BSD fully at present.

Please consider this feature as it would add great value to BSD users.

Thanks for the consideration

Dan