Reverse proxy on Frappe Cloud

Is there any way to realize a reverse proxy on Frappe Cloud by using a custom domain? For example, I want to map Frappe Cloud crm.mycustomdomain.com.

add domain on site
there is an option betow in site to add domain you just need to add domain there . and make it primary

Thanks. I’m actually looking for the ability to specify a target URL (including path). I’ve already got a custom domain that points to my site, so going to desk.mycustomdomain.com lands you at the erpnext login page or, in Desk, if you’re already logged in.

However, I also have Frappe CRM installed. I want to use another domain (eg., crm.mycustomdain.com) and have it land directly at the frappe crm page (eg., desk.mycustomdomain.com/crm). It’s a standard reverse proxy situation, I just haven’t found a way to do it through frappe.cloud.