Don’t go takin’ medical advice from me on anythin’ now.

Would this be considered medical advice?

No Way or alternatively Wrong Way

Pihole can do this out of the box by going to the dns settings and adding a host. Alternatively, if your pihole is also your dhcp provider, you can set the hostname on each and pi hole should resolve it.

https://thiagowfx.github.io/2022/01/pihole-add-custom-dns-mappings/