refactor!: multi-host setup

nix/configuration.nix

@@ -1,26 +0,0 @@
-# Edit this configuration file to define what should be installed on
-# your system. Help is available in the configuration.nix(5) man page, on
-# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
-
-{ config, lib, pkgs, meta, ... }:
-
-{
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
-  environment.systemPackages = with pkgs; [ wget busybox stow ];
-  programs.nix-ld.enable = true;
-  networking.hostName = meta.hostname;
-
-  home-manager.useGlobalPkgs = true;
-  home-manager.useUserPackages = true;
-  home-manager.users.luca = import ./users/luca/home.nix;
-  users.users.luca.shell = pkgs.zsh;
-  programs.zsh.enable = true;
-
-  # This value determines the NixOS release from which the default
-  # settings for stateful data, like file locations and database versions
-  # on your system were taken. It's perfectly fine and recommended to leave
-  # this value at the release version of the first install of this system.
-  # Before changing this value read the documentation for this option
-  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-  system.stateVersion = "24.05"; # Did you read the comment?
-}

nix/flake.nix

@@ -24,13 +24,10 @@
             meta = { hostname = host.name; };
           };
           system = "x86_64-linux";
-          modules =
-            [ ./configuration.nix home-manager.nixosModules.home-manager ]
-            ++ (if host.isWSL then [
-              ./wsl.nix
-              nixos-wsl.nixosModules.default
-            ] else
-              [ ]);
+          modules = [
+            ./hosts/${host.name}/configuration.nix
+            home-manager.nixosModules.home-manager
+          ] ++ (if host.isWSL then [ nixos-wsl.nixosModules.default ] else [ ]);
         };
       }) hosts);
     };

nix/hosts/wsl-kumatani/configuration.nix

@@ -0,0 +1,20 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, lib, pkgs, meta, ... }:
+
+{
+  imports = [ ../../modules/default.nix ];
+
+  wsl.enable = true;
+  wsl.defaultUser = "luca";
+  networking.hostName = meta.hostname;
+  programs.nix-ld.enable = true;
+  hm.enable = true;
+
+  environment.systemPackages = with pkgs;
+    config.commonPackages ++ [ asciiquarium ];
+
+  system.stateVersion = "24.05";
+}

nix/modules/commonPackages.nix

@@ -0,0 +1,10 @@
+{ pkgs, lib, ... }: {
+  options = {
+    commonPackages = lib.mkOption {
+      type = lib.types.listOf lib.types.package;
+      default = [ ];
+      description = "Common packages";
+    };
+  };
+  config.commonPackages = with pkgs; [ wget busybox curl ];
+}

nix/modules/default.nix

@@ -0,0 +1 @@
+{ pkgs, lib, config, ... }: { imports = [ ./commonPackages.nix ./hm.nix ]; }

nix/modules/hm.nix

@@ -0,0 +1,11 @@
+{ lib, config, pkgs, ... }: {
+  options = { hm.enable = lib.mkEnableOption "enable home-manager"; };
+
+  config = lib.mkIf config.hm.enable {
+    home-manager.useGlobalPkgs = true;
+    home-manager.useUserPackages = true;
+    home-manager.users.luca = import ../users/luca/home.nix;
+    users.users.luca.shell = pkgs.zsh;
+    programs.zsh.enable = true;
+  };
+}

nix/wsl.nix

@@ -1,4 +0,0 @@
-{
-  wsl.enable = true;
-  wsl.defaultUser = "luca";
-}