feat(system): use Lix in place of Nix in system template

system/flake.nix

@@ -2,19 +2,30 @@
   description = "A system flake with various options for bootstrapping a complete NixOS install.";
 
   inputs = {
+
+    # Import the desired Nix channel. Defaults to unstable, which uses a fully tested rolling release model.
+    #   You can find a list of channels at https://nixos.wiki/wiki/Nix_channels
+    #   To follow a different channel, replace `nixos-unstable` with the channel name, e.g. `nixos-24.05`.
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+    # Use Lix in place of Nix.
+    #   If you'd rather use regular Nix, remove `lix-module.nixosModules.default` from the `modules` section below.
+    #   To learn more about Lix, see https://lix.systems/
+    lix-module = {
+      url = "https://git.lix.systems/lix-project/nixos-module/archive/2.90.0-rc1.tar.gz";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     # Flatpak support
     nix-flatpak.url = "github:gmodena/nix-flatpak/v0.4.1";
 
-    # Import the desired Nixpkgs repo. Defaults to unstable.
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
-
     # SecureBoot support
     lanzaboote.url = "github:nix-community/lanzaboote/v0.4.0";
 
     # NixOS hardware quirks
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
 
-    # Add Home-manager support
+    # Home-manager support
     home-manager = {
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -26,6 +37,7 @@
       self,
       home-manager,
       lanzaboote,
+      lix-module,
       nix-flatpak,
       nixos-hardware,
       nixpkgs,
@@ -70,6 +82,7 @@
           ./modules/autoimport.nix
           home-manager.nixosModules.home-manager
           lanzaboote.nixosModules.lanzaboote
+          lix-module.nixosModules.default
           nix-flatpak.nixosModules.nix-flatpak
           ./host/configuration.nix