Pass hostname and username to modules

flake.nix

@@ -38,7 +38,7 @@
     inputs = { inherit disko home-manager nixpkgs nixpkgs-unstable nix-darwin; };
 
     # creates a macOS system config
-    darwinSystem = system: hostName: username: nix-darwin.lib.darwinSystem {
+    darwinSystem = system: hostname: username: nix-darwin.lib.darwinSystem {
       pkgs = import nixpkgs {
         inherit system;
         config = {
@@ -48,6 +48,7 @@
           ];
         };
       };
+      specialArgs = { inherit inputs username hostname; };
       modules = [
         nix-homebrew.darwinModules.nix-homebrew
         {
@@ -77,12 +78,12 @@
         }
 
         ./modules/common/darwin/all-hosts.nix
-        ./modules/hosts/darwin/${hostName} # ip address, host specific stuff
+        ./modules/hosts/darwin/${hostname} # ip address, host specific stuff
       ]; # end modules
     }; # end darwinSystem
 
     # creates a nixos system config
-    nixosSystem = system: hostName: username: nixpkgs.lib.nixosSystem {
+    nixosSystem = system: hostname: username: nixpkgs.lib.nixosSystem {
       pkgs = import nixpkgs {
         inherit system;
         config = {
@@ -92,6 +93,7 @@
           ];
         };
       };
+      specialArgs = { inherit inputs username hostname; };
       modules = [
         home-manager.nixosModules.home-manager
         {
@@ -107,7 +109,7 @@
         }
 
         ./modules/common/nixos/all-hosts.nix
-        ./modules/hosts/nixos/${hostName} # ip address, host specific stuff
+        ./modules/hosts/nixos/${hostname} # ip address, host specific stuff
       ];
     }; # end nixosSystem
 

modules/common/darwin/all-hosts.nix

@@ -1,6 +1,4 @@
-{ pkgs, ... }: let
-  username = "gene.liverman";
-in {
+{ pkgs, hostname, username, ... }: {
   environment = {
     shells = with pkgs; [ bash zsh ];
     loginShell = pkgs.zsh;
@@ -68,6 +66,8 @@ in {
     };
   };
 
+  networking.hostName = "${hostname}";
+
   nix = {
     settings = {
       bash-prompt-prefix = "(nix:$name)\040";

modules/common/nixos/all-hosts.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }: {
+{ config, pkgs, hostname, username, ... }: {
   imports = [
     ./internationalisation.nix
   ];
@@ -26,7 +26,10 @@
     })
   ];
 
+  networking.hostName = "${hostname}";
+
   nix.settings = {
+    allowed-users = [ "${username}" ];
     experimental-features = [
       "flakes"
       "nix-command"

modules/hosts/nixos/rainbow-planet/default.nix

@@ -1,7 +1,4 @@
-{ config, pkgs, ... }: let
-  username = "gene";
-  hostname = "rainbow-planet";
-in {
+{ config, pkgs, username, ... }: {
   imports = [
     ./hardware-configuration.nix
   ];
@@ -39,12 +36,9 @@ in {
   ];
 
   networking = {
-    hostName = "${hostname}";
     networkmanager.enable = true;
   };
 
-  nix.settings.allowed-users = [ "${username}" ];
-
   programs = {
     _1password.enable = true;
     _1password-gui = {
@@ -104,7 +98,7 @@ in {
     description = "Gene Liverman";
     extraGroups = [ "networkmanager" "wheel" "dialout" "input" ];
     packages = with pkgs; [
-     tailscale-systray
+      tailscale-systray
     ];
   };
 }