There is a new pull request by zhengqunkoo against master on the void-packages repository

https://github.com/zhengqunkoo/void-packages kmonad
https://github.com/void-linux/void-packages/pull/21343

Avoid overriding do_install() in haskell-stack build-style
An overrided `do_install()` means `/usr/bin/kmonad` is not installed.

A patch file from https://github.com/void-linux/void-packages/pull/21343.patch is attached