Yeah, doing sanoid as well was always the plan! The repo is named after the sanoid port GitHub - ifazk/chobi: Zfs snapshot and replication tools. 
(Chobi means photo/picture, and chithi means letter).
I’m pretty far along for the syncoid port (chithi). Just added the bookmark fallback for syncing a couple days ago, and currently working on bandwidth limits. So pretty confident that I’ll at least finish the syncoid port.
I’ve added a few things from the What do you use to manage/schedule syncoid replication? discussion to the road map, so there’s a bit of a feature creep there. 
The whole thing is a bit of a hedge against Perl dependence tbh, so there are some strong motivations for me to finish both. But motivations come and go, so we’ll see!