refactor: split code into modules

hosts/common/default.nix

@@ -1,8 +1,6 @@
 {
-  pkgs,
   username,
   outputs,
-  config,
   inputs,
   email,
   ...
@@ -11,6 +9,7 @@
     inputs.impermanence.nixosModules.impermanence
     inputs.home-manager.nixosModules.home-manager
 
+    ../../modules/base
     ../../modules/nixos/fail2ban.nix
     ../../modules/nixos/sops.nix
     ../../modules/nixos/upstream-proxy.nix
@@ -24,51 +23,6 @@
     neededForUsers = true;
   };
 
-  nixpkgs = {
-    overlays = [
-      outputs.overlays.additions
-      outputs.overlays.modifications
-      outputs.overlays.stable-packages
-      outputs.overlays.nur
-      outputs.overlays.nix-vscode-extensions
-    ];
-
-    config = {
-      allowUnfree = true;
-      joypixels.acceptLicense = true;
-    };
-  };
-
-  nix = {
-    package = pkgs.lix;
-    settings = {
-      experimental-features = "nix-command flakes";
-      auto-optimise-store = true;
-      trusted-users = ["${username}"];
-      warn-dirty = false;
-      substituters = [
-        "https://cache.nixos.org?priority=10"
-        "https://anyrun.cachix.org"
-        "https://fufexan.cachix.org"
-        "https://helix.cachix.org"
-        "https://hyprland.cachix.org"
-        "https://nix-community.cachix.org"
-        "https://nix-gaming.cachix.org"
-        "https://yazi.cachix.org"
-      ];
-      trusted-public-keys = [
-        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
-        "anyrun.cachix.org-1:pqBobmOjI7nKlsUMV25u9QHa9btJK65/C8vnO3p346s="
-        "fufexan.cachix.org-1:LwCDjCJNJQf5XD2BV+yamQIMZfcKWR9ISIFy5curUsY="
-        "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
-        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
-        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-        "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
-        "yazi.cachix.org-1:Dcdz63NZKfvUCbDGngQDAZq6kOroIrFoyO064uvLh8k="
-      ];
-    };
-  };
-
   time.timeZone = "Asia/Kolkata";
   i18n = {
     defaultLocale = "en_US.UTF-8";
@@ -89,25 +43,6 @@
 
   programs = {
     zsh.enable = true;
-    nh = {
-      enable = true;
-      clean.enable = true;
-      clean.extraArgs = "--keep-since 5d --keep 5";
-      flake = "/home/${username}/Projects/nixos-config";
-    };
-  };
-
-  users = {
-    mutableUsers = false;
-    defaultUserShell = pkgs.zsh;
-    users.${username} = {
-      hashedPasswordFile = config.sops.secrets.tux-password.path;
-      isNormalUser = true;
-      extraGroups = ["networkmanager" "wheel" "storage"];
-      openssh.authorizedKeys.keys = [
-        ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+OzPUe2ECPC929DqpkM39tl/vdNAXfsRnmrGfR+X3D ${email}''
-      ];
-    };
   };
 
   home-manager = {

modules/base/default.nix

@@ -0,0 +1,10 @@
+{
+  imports = [
+    ./nix.nix
+    ./nixpkgs.nix
+    ./nh.nix
+    ./overlays.nix
+    ./substituters.nix
+    ./user.nix
+  ];
+}

modules/base/nh.nix

@@ -0,0 +1,16 @@
+{
+  config,
+  username,
+  ...
+}: {
+  programs.nh = {
+    enable = true;
+
+    clean = {
+      enable = !config.nix.gc.automatic;
+      dates = "weekly";
+    };
+
+    flake = "/home/${username}/Projects/nixos-config";
+  };
+}

modules/base/nix.nix

@@ -0,0 +1,15 @@
+{
+  pkgs,
+  username,
+  ...
+}: {
+  nix = {
+    package = pkgs.lix;
+    settings = {
+      experimental-features = "nix-command flakes";
+      auto-optimise-store = true;
+      trusted-users = ["${username}"];
+      warn-dirty = false;
+    };
+  };
+}

modules/base/nixpkgs.nix

@@ -0,0 +1,8 @@
+{
+  nixpkgs = {
+    config = {
+      allowUnfree = true;
+      joypixels.acceptLicense = true;
+    };
+  };
+}

modules/base/overlays.nix

@@ -0,0 +1,9 @@
+{outputs, ...}: {
+  nixpkgs.overlays = [
+    outputs.overlays.additions
+    outputs.overlays.modifications
+    outputs.overlays.stable-packages
+    outputs.overlays.nur
+    outputs.overlays.nix-vscode-extensions
+  ];
+}

modules/base/substituters.nix

@@ -0,0 +1,24 @@
+{
+  nix.settings = {
+    substituters = [
+      "https://cache.nixos.org?priority=10"
+      "https://anyrun.cachix.org"
+      "https://fufexan.cachix.org"
+      "https://helix.cachix.org"
+      "https://hyprland.cachix.org"
+      "https://nix-community.cachix.org"
+      "https://nix-gaming.cachix.org"
+      "https://yazi.cachix.org"
+    ];
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "anyrun.cachix.org-1:pqBobmOjI7nKlsUMV25u9QHa9btJK65/C8vnO3p346s="
+      "fufexan.cachix.org-1:LwCDjCJNJQf5XD2BV+yamQIMZfcKWR9ISIFy5curUsY="
+      "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
+      "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
+      "yazi.cachix.org-1:Dcdz63NZKfvUCbDGngQDAZq6kOroIrFoyO064uvLh8k="
+    ];
+  };
+}

modules/base/user.nix

@@ -0,0 +1,20 @@
+{
+  config,
+  pkgs,
+  username,
+  email,
+  ...
+}: {
+  users = {
+    mutableUsers = false;
+    defaultUserShell = pkgs.zsh;
+    users.${username} = {
+      hashedPasswordFile = config.sops.secrets.tux-password.path;
+      isNormalUser = true;
+      extraGroups = ["networkmanager" "wheel" "storage"];
+      openssh.authorizedKeys.keys = [
+        ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+OzPUe2ECPC929DqpkM39tl/vdNAXfsRnmrGfR+X3D ${email}''
+      ];
+    };
+  };
+}