_:
let
  fullBlocklistProjectTrackerList = {
    Abuse = [ "https://blocklistproject.github.io/Lists/abuse.txt" ];
    Ads = [ "https://blocklistproject.github.io/Lists/ads.txt" ];
    Crypto = [ "https://blocklistproject.github.io/Lists/crypto.txt" ];
    Drugs = [ "https://blocklistproject.github.io/Lists/drugs.txt" ];
    Everything = [ "https://blocklistproject.github.io/Lists/everything.txt" ];
    Facebook = [ "https://blocklistproject.github.io/Lists/facebook.txt" ];
    Fraud = [ "https://blocklistproject.github.io/Lists/fraud.txt" ];
    Gambling = [ "https://blocklistproject.github.io/Lists/gambling.txt" ];
    Malware = [ "https://blocklistproject.github.io/Lists/malware.txt" ];
    Phishing = [ "https://blocklistproject.github.io/Lists/phishing.txt" ];
    Piracy = [ "https://blocklistproject.github.io/Lists/piracy.txt" ];
    Porn = [ "https://blocklistproject.github.io/Lists/porn.txt" ];
    Ransomware = [ "https://blocklistproject.github.io/Lists/ransomware.txt" ];
    Redirect = [ "https://blocklistproject.github.io/Lists/redirect.txt" ];
    Scam = [ "https://blocklistproject.github.io/Lists/scam.txt" ];
    TikTok = [ "https://blocklistproject.github.io/Lists/tiktok.txt" ];
    Torrent = [ "https://blocklistproject.github.io/Lists/torrent.txt" ];
    Tracking = [ "https://blocklistproject.github.io/Lists/tracking.txt" ];
  };
in
{
  services.blocky = {
    enable = true;
    settings = rec {
      port = 53; # Standard DNS port
      upstream.default = [
        # Using Cloudflare's DNS over HTTPS server for resolving queries.
        "https://one.one.one.one/dns-query"
      ];
      # For initially solving DoH/DoT Requests when no system Resolver is available.
      bootstrapDns = {
        upstream = "https://one.one.one.one/dns-query";
        ips = [ "1.1.1.1" "1.0.0.1" ];
      };
      # Enable Blocking of certain domains.
      blocking = {
        blackLists = {
          inherit (fullBlocklistProjectTrackerList) Abuse Ads Crypto Drugs Fraud Gambling Malware Phishing Ransomware Scam Torrent Tracking;
        };
      };
      # Configure what block categories are used
      clientGroupsBlock = {
        default = builtins.attrNames blocking.blackLists;
      };
    };
  };
}