If you ever switch to AdGuard Home, adguardhome-sync is pretty good. IMO AdGuard Home is better since it has all of PiHole’s features plus it supports DNS-over-HTTPS out-of-the-box, so your ISP can’t spy on your DNS queries (non-encrypted DNS queries can be easily intercepted and modified by your ISP even if you use a third-party DNS server, since they’re unencrypted and unauthenticated)