Better late than never I guess.
I’ve made an official announcement here : Skyspell: handy and fast spellchecker for the command line with Kakoune integration
I’ve also updated both READMEs
https://git.sr.ht/~dmerej/skyspell/tree/main/item/README.md
and
https://git.sr.ht/~dmerej/skyspell/tree/main/item/crates/kak/README.md
Hope this helps.