Custom NextDNS Block Page

It would be very, very nice to let users customize the DNS blocking page. I suggest adding an option to add a personalized page in html format. The user could then add a page of their choice, and for the blocked site to be displayed, the user would just have to add the "{{domain}}" variable. If the idea of adding a web page is impossible for developers to realize, I'd have thought of redirecting the DNS to a domain containing the personalized page (CNAME redirection, etc.).

The reason I'm asking for this feature is because it's important to me in Pihole, as a web developer I'd made a custom blocking web page where you could press a button to unblock the page, all in JS, the operation was simple and based on the Pihole API, with a Javascript script I simply send a request to this api to add this domain to the white list, if this feature is implemented in NextDNS, I'd do it. I think this feature would be great, it would allow a company as well as an educational institution to display an error page in the company/institution color, which reinforces professionalism.

Here's an example of a customizable page:

In the Adguard Home configuration you can change the dns resolution and point to an address of your choice, by default the adguard home pages correspond to this one: http://family-block.dns.adguard.com, http://standard-block.dns.adguard.com

Same for PiHole but here you can custom directly HTML file (it is directly modified in the nginx server files) :

If the Next DNS team added this, it would be incredible.