2 feature requests. Pihole can use tar.gz lists and in addition Group Management Allowlists

Feature Requests Duplicate
2

  1. Pi-hole already supports compression via libz when the server supports it.
    Use compression (if available) when downloading the ad lists. by PromoFaux · Pull Request #3641 · pi-hole/pi-hole · GitHub

  2. Is a duplicate of
    Subscribe to user-maintained whitelists, and whitelist from a file