drop zerotier-subnet, we can compute this.

nixosModules/clanCore/zerotier/default.nix

@@ -97,13 +97,11 @@ in
         facts.zerotier-ip = { };
         facts.zerotier-meshname = { };
         facts.zerotier-network-id = { };
-        facts.zerotier-subnet = { };
         secrets.zerotier-identity-secret = { };
         generator = ''
           export PATH=${lib.makeBinPath [ config.services.zerotierone.package pkgs.fakeroot ]}
           ${pkgs.python3.interpreter} ${./generate.py} --mode network \
             --ip "$facts/zerotier-ip" \
-            --subnet "$facts/zerotier-subnet" \
             --meshname "$facts/zerotier-meshname" \
             --identity-secret "$secrets/zerotier-identity-secret" \
             --network-id "$facts/zerotier-network-id"

nixosModules/clanCore/zerotier/generate.py

@@ -195,7 +195,6 @@ def main() -> None:
         "--mode", choices=["network", "identity"], required=True, type=str
     )
     parser.add_argument("--ip", type=Path, required=True)
-    parser.add_argument("--subnet", type=Path)
     parser.add_argument("--meshname", type=Path, required=True)
     parser.add_argument("--identity-secret", type=Path, required=True)
     parser.add_argument("--network-id", type=str, required=False)
@@ -219,8 +218,6 @@ def main() -> None:
 
     args.identity_secret.write_text(identity.private)
     args.ip.write_text(ip.compressed)
-    if args.subnet is not None:
-        args.subnet.write_text(ipaddress.ip_network(ip).compressed)
     args.meshname.write_text(meshname)