Update addressing lib to remove making the hosts list optional.

lib/addressing/default.nix

@@ -270,19 +270,18 @@ let
         spec.domain or (throw "metatron-addressing: spec.domain is required for FQDN generation");
     in
     concatMapAttrs
-      (locationName: locCfg:
+      (locationName: locationCfg:
       let
         loc = locationId locationName;
         locCode = mkLocationCode locationName;
 
-        # Strip meta-level hints; what’s left are subnets (main, dmz, etc.)
+        # Only treat attributes that are attrsets with a `hosts` attr as subnets
         subnets =
-          builtins.removeAttrs locCfg [ "owner" "admins" "users" ];
+          lib.filterAttrs (_: v: builtins.isAttrs v && v ? hosts) locationCfg;
       in
       concatMapAttrs
         (typeName: subnetCfg:
         let
-          # New shape: subnetCfg.hosts = { hostName = { role = "..."; ... }; ... }
           hostsForSubnet = subnetCfg.hosts or { };
 
           # Only treat non-underscore-prefixed keys as hosts
@@ -347,7 +346,7 @@ let
         subnets)
       locations;
 
-  # Subnet map: { "home-dmz" = { cidr = "..."; vlan = ...; zone = "..."; ... }; ... }
+  # Subnet map: { "home-dmz" = "10.1.0.0/19"; "home-main" = "..."; ... }
   mkSubnetsFromSpec =
     spec:
     let
@@ -358,20 +357,18 @@ let
         spec.domain or (throw "metatron-addressing: spec.domain is required");
     in
     concatMapAttrs
-      (locationName: locCfg:
+      (locationName: locationCfg:
       let
         loc = locationId locationName;
         locCode = mkLocationCode locationName;
 
-        # Strip meta-level hints; remaining attrs are subnets
+        # Only attributes with `hosts` are subnets
         subnets =
-          builtins.removeAttrs locCfg [ "owner" "admins" "users" ];
+          lib.filterAttrs (_: v: builtins.isAttrs v && v ? hosts) locationCfg;
       in
       mapAttrs'
         (typeName: subnetCfg:
         let
-          hostsForSubnet = subnetCfg.hosts or { };
-
           cidr = mkSubnetNamed { location = loc; inherit typeName; };
 
           subnetSlug =
@@ -382,21 +379,42 @@ let
           zone = "${subnetSlug}.${locCode}.${domain}";
 
           vlan =
-            # Priority: explicit vlan on subnet > old-style _vlan > computed
             subnetCfg.vlan or
-              hostsForSubnet._vlan or
+              subnetCfg._vlan or
                 (mkVlanNamed { location = loc; inherit typeName; });
+
+          dhcpCfg = subnetCfg.dhcp or null;
+
+          dhcpRange =
+            if dhcpCfg == null then null else {
+              startIp = mkIpNamed {
+                location = loc;
+                inherit typeName;
+                roleName = "pool";
+                host = dhcpCfg.start;
+              };
+              endIp = mkIpNamed {
+                location = loc;
+                inherit typeName;
+                roleName = "pool";
+                host = dhcpCfg.end;
+              };
+            };
         in
         nameValuePair
           "${locationName}-${typeName}"
-          {
+          (
-            inherit cidr locationName typeName zone vlan;
+            {
-          })
+              inherit cidr locationName typeName zone vlan;
+            }
+            // optionalAttrs (dhcpCfg != null) {
+              dhcp = dhcpCfg;
+              dhcpRange = dhcpRange;
+            }
+          ))
         subnets)
       locations;
 
-
-
   # Combined view, if you want both
   mkNetworkFromSpec =
     spec:

meta.nix

@@ -84,6 +84,11 @@
       main = {
         vlan = 10;
 
+        dhcp = {
+          start = 1;
+          end = 1;
+        };
+
         hosts = {
           europa = {
             role = "router";
@@ -131,40 +136,21 @@
             role = "phone";
             hw-address = "80:5e:c0:de:3d:66";
           };
-
-          home-main-dhcp-start = {
-            role = "pool";
-            hostId = 1;
-            dns = false;
-          };
-
-          home-main-dhcp-end = {
-            role = "pool";
-            hostId = 250;
-            dns = false;
-          };
         };
       };
 
       guest = {
         vlan = 20;
 
+        dhcp = {
+          start = 1;
+          end = 250;
+        };
+
         hosts = {
           europa-guest = {
             role = "router";
           };
-
-          home-guest-dhcp-start = {
-            role = "pool";
-            hostId = 1;
-            dns = false;
-          };
-
-          home-guest-dhcp-end = {
-            role = "pool";
-            hostId = 250;
-            dns = false;
-          };
         };
       };
 
@@ -223,6 +209,11 @@
       storage = {
         vlan = 40;
 
+        dhcp = {
+          start = 1;
+          end = 250;
+        };
+
         hosts = {
           europa-storage = {
             role = "router";
@@ -232,18 +223,6 @@
             role = "nas";
             aliases = [ "storage.kasear.net" ];
           };
-
-          home-storage-dhcp-start = {
-            role = "pool";
-            hostId = 1;
-            dns = false;
-          };
-
-          home-storage-dhcp-end = {
-            role = "pool";
-            hostId = 250;
-            dns = false;
-          };
         };
       };