Hey! IM going to post my config below, excuse the formatting if it comes out really messed up, im totally unsure how Lemmy is going to handle this.

- Pihole:
    icon: pi-hole.png # This is the icon that will be displayed on the widget
    href: Link to your PiHole login # Optional, but makes the widget clickable
    description: DNS Server/Ad-Blocker # Description of the service
    ping: IP_ADDRESS_PIHOLE # Options, but will ping the host and display latency
    widget:
        type: pihole # This is required by Homepage to define the type of widget 
        url: http://IP_ADDRESS_PIHOLE
        key: REDACTED # This is an API key generated on the PiHole

Here is the link I used for obtaining the API key. https://pi-hole.net/blog/2022/11/17/upcoming-changes-authentication-for-more-api-endpoints-required/#page-content

Let me know if you have any issues!