Added missing config attribute.

modules/hardware/boot.nix

@@ -1,11 +1,13 @@
 { config, ... }:
 
 {
-  boot.initrd.systemd.enable = true;
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
+  config = {
+    boot.initrd.systemd.enable = true;
+    boot.loader.systemd-boot.enable = true;
+    boot.loader.efi.canTouchEfiVariables = true;
 
-  boot.kernel.sysctl = {
-    "vm.overcommit_memory" = 1;
+    boot.kernel.sysctl = {
+      "vm.overcommit_memory" = 1;
+    };
   };
 }

modules/networking/firewall.nix

@@ -1,11 +1,13 @@
 { config, ... }:
 
 {
-  networking.nftables.enable = true;
-  networking.firewall = {
-    enable = true;
-    allowPing = true;
-    allowedTCPPorts = [ 53 80 443 ];
-    allowedUDPPorts = [ 53 443 ];
+  config = {
+    networking.nftables.enable = true;
+    networking.firewall = {
+      enable = true;
+      allowPing = true;
+      allowedTCPPorts = [ 53 80 443 ];
+      allowedUDPPorts = [ 53 443 ];
+    };
   };
 }

modules/networking/networking.nix

@@ -37,22 +37,24 @@ in
     };
   };
 
-  networking.hostName = "numbus-server";
-  networking.networkmanager.enable = false;
+  config = {
+    networking.hostName = "numbus-server";
+    networking.networkmanager.enable = false;
 
-  # Allow rootless containers to bind to port 53 and up
-  boot.kernel.sysctl."net.ipv4.ip_unprivileged_port_start" = 53;
+    # Allow rootless containers to bind to port 53 and up
+    boot.kernel.sysctl."net.ipv4.ip_unprivileged_port_start" = 53;
 
-  networking.bridges.br0.interfaces = [ "${cfg.interface}" ];
-  networking.interfaces."${cfg.interface}".useDHCP = false;
-  networking.interfaces.br0.useDHCP = false;
-  networking.nameservers = cfg.dnsServers;
-  networking.interfaces.br0.ipv4.addresses = [{
-    address = "${cfg.ipAddress}";
-    prefixLength = 24;
-  }];
-  networking.defaultGateway = {
-    address = "${cfg.routerIpAddress}";
-    interface = "br0";
+    networking.bridges.br0.interfaces = [ "${cfg.interface}" ];
+    networking.interfaces."${cfg.interface}".useDHCP = false;
+    networking.interfaces.br0.useDHCP = false;
+    networking.nameservers = cfg.dnsServers;
+    networking.interfaces.br0.ipv4.addresses = [{
+      address = "${cfg.ipAddress}";
+      prefixLength = 24;
+    }];
+    networking.defaultGateway = {
+      address = "${cfg.routerIpAddress}";
+      interface = "br0";
+    };
   };
 }