Subdomain in magick links

[devWithKD]

I have a case where i want to deploy an application which will be accessed by two subdomains
dashboard.example.com and ticket.example.com i am using middleware to rewrite the urls to route the requests to /dashboard and /ticket

i have the (auth) folder where i am having all the files like signin page, error page and verify-request page

how can i get the magick link to have subdomain in it??
and will it work? i am noob here