Request: multiple subdomain redirecting question

hi & thanks for the plugin
can you fix the redirecting issue to be $homepage as a variable?
because if i used multiple sub-domains, i only have one choice to redirect them all to one domain, sub.example.com & sub2.example.com will be redirected to example.com.

thanks alot!

https://ww.wp.xz.cn/plugins/remove-dashboard-access-for-non-admins/