New comment by PaperMountainStudio on void-packages repository

https://github.com/void-linux/void-packages/pull/23541#issuecomment-682365492

Comment:
@br0qn next you will have to install it -
1. install usr/bin anywhere in your $PATH - for example `mv usr/bin/* /usr/local/bin/`
2. install var/db - for example `mkdir -p /var/db` and then `mv var/db/xbps /var/db`

both steps should require sudo

Now you should have xbps installed and you can use the guide described in the original post.