Implement RFC9527: Homenet DHCPv6 options
A new set of three DHCPv6 options are being published in RFC9527. If this link no longer works, it means the RFC is published.
The options' formats are reasonably simple (a 16-bits long bit field + fqdn) and are DHCPv6 only. There's no special processing - normal ORO stuff, although the server will likely keep some values user specific (so will be used mainly as host reservation options).