Anotther flake.nix bump.

flake.nix

@@ -10,61 +10,92 @@
 
   outputs = { self, nixpkgs, deploy-rs, disko, nixos-anywhere, ... }:
     let
-      system = "x86_64-linux";
+      # Default architecture if a system doesn’t override it
+      defaultSystem = "x86_64-linux";
 
-      pkgs = import nixpkgs { inherit system; };
-      lib = pkgs.lib;
+      # pkgs per-system so cross-arch doesn’t explode later
+      pkgsFor = system: import nixpkgs { inherit system; };
 
-      addressing = import ./lib/addressing {
-        inherit lib;
-      };
+      lib = nixpkgs.lib;
 
+      # World spec & addressing
       meta = import ./meta.nix;
+      addressing = import ./lib/addressing { inherit lib; };
 
+      # Optional for now; meta.systems can be {} until the systems submodule lands
       systemsFromMeta = meta.systems or { };
+
+      # Precomputed full network view
+      network = addressing.mkNetworkFromSpec meta;
     in
     {
+      ########################
+      # Library exports
+      ########################
+
       lib.metanix = {
-        inherit meta addressing;
-        network = addressing.mkNetworkFromSpec meta;
+        inherit meta addressing network;
       };
 
+      ########################
+      # NixOS configurations
+      ########################
+
       nixosConfigurations =
         lib.mapAttrs
           (name: sysCfg:
             let
-              systemForHost = sysCfg.system or system;
+              # System for this host, fallback to default
+              system = sysCfg.system or defaultSystem;
+              pkgs = pkgsFor system;
             in
             lib.nixosSystem {
-              system = systemForHost;
+              inherit system;
 
-              # Make meta + addressing available to all modules
+              # Make meta/addressing/world visible to modules
               specialArgs = {
-                inherit meta addressing;
+                inherit lib pkgs meta addressing system;
+                modulesPath = builtins.toString <nixpkgs/nixos/modules>;
               };
 
               modules =
                 (sysCfg.modules or [ ]) ++ [
+                  # Core Metanix wiring
                   ./modules/metanix/core.nix
                   ./modules/metanix/networkd.nix
 
-                  # Disko wiring if present
+                  # Identity binding: “this box is <name> in Metanix”
+                  {
+                    networking.hostName = sysCfg.hostName or name;
+                    metanix.thisHost = sysCfg.metanixName or name;
+                  }
+
+                  # Optional Disko integration per host
                   (if sysCfg ? diskoConfig then
-                    { imports = [ disko.nixosModules.disko sysCfg.diskoConfig ]; }
+                    {
+                      imports = [
+                        disko.nixosModules.disko
+                        sysCfg.diskoConfig
+                      ];
+                    }
                   else
                     { })
                 ];
             })
           systemsFromMeta;
 
+      ########################
+      # deploy-rs
+      ########################
+
       deploy = {
         nodes =
           lib.mapAttrs
             (name: sysCfg:
               let
-                network = addressing.mkNetworkFromSpec meta;
                 hasNetworkHost = builtins.hasAttr name network.hosts;
                 hostInfo = if hasNetworkHost then network.hosts.${name} else null;
+
                 defaultHostname =
                   if hasNetworkHost then hostInfo.fqdn else "${name}.${meta.domain}";
               in
@@ -74,20 +105,24 @@
                 profiles.system = {
                   user = sysCfg.deployUser or "root";
                   path =
-                    deploy-rs.lib.${system}.activate.nixos
+                    deploy-rs.lib.${defaultSystem}.activate.nixos
                       self.nixosConfigurations.${name};
                 };
               })
             systemsFromMeta;
       };
 
-      checks.${system}.deploy =
-        deploy-rs.lib.${system}.deployChecks self.deploy;
+      checks.${defaultSystem}.deploy =
+        deploy-rs.lib.${defaultSystem}.deployChecks self.deploy;
 
-      apps.${system}.nixos-anywhere = {
+      ########################
+      # nixos-anywhere helper
+      ########################
+
+      apps.${defaultSystem}.nixos-anywhere = {
         type = "app";
         program =
-          "${nixos-anywhere.packages.${system}.nixos-anywhere}/bin/nixos-anywhere";
+          "${nixos-anywhere.packages.${defaultSystem}.nixos-anywhere}/bin/nixos-anywhere";
       };
     };
 }