Support wildcard syntax to block subdomains

[8sRz]

I am just starting out with this app, after coming from personalDNSfilter.
https://github.com/IngoZenz/personaldnsfilter)

One reason I am looking for something new is that personalDNSfilter doesn't support a good way to block subdomains from the blocklists as far as I can tell. It has a wildcard system, but they can only be added in the Additional Hosts section on that app, and cannot be in the large blocklists themselves.

Edit: It turns out personalDNSfilter does support blocking subdomains in the blocklist as of early last year.
IngoZenz/personaldnsfilter#262 (comment)

Another example is Pi-Hole appears to have support for basic ABP-style wildcard syntax (i.e. I believe "||example.com^" would block the domain and all subdomains).
https://pi-hole.net/blog/2023/03/22/pi-hole-ftl-v5-22-web-v5-19-and-core-v5-16-1-released/#page-content

I understand there are data structure efficiency complications with doing a feature like this. I don't think full regex is necessary. But syntax to reliably block a domain and all it's subdomains in either one or two lines of a blocklist would be super helpful, and I think necessary, due to how easy it is for a site to spin up subdomains. Here is a related thread I found from dns66:
julian-klode#33