Added nix config

flake.nix

@@ -0,0 +1,89 @@
+{
+  description = "My Nix Configuration";
+
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-22.05";
+    home-manager.url = "github:nix-community/home-manager/release-22.05";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = {
+    nixpkgs,
+    home-manager,
+    ...
+  }: let
+    system = "x86_64-linux";
+
+    pkgs = import nixpkgs {
+      inherit system;
+      config = {
+        allowUnfree = true;
+      };
+    };
+
+    lib = nixpkgs.lib;
+  in {
+    homeManagerConfigurations = {
+      alejandro = home-manager.lib.homeManagerConfiguration {
+        inherit system pkgs;
+        username = "alejandro";
+        homeDirectory = "/home/alejandro";
+        stateVersion = "22.05";
+        configuration = {
+          imports = [
+            ./users/alejandro/home.nix
+          ];
+        };
+      };
+    };
+
+    nixosConfigurations = {
+      virtual = lib.nixosSystem {
+        inherit system;
+
+        modules = [
+          ./system/virtual/configuration.nix
+        ];
+      };
+
+      carbon = lib.nixosSystem {
+        inherit system;
+
+        modules = [
+          ./system/carbon/configuration.nix
+        ];
+      };
+     
+      gospel = lib.nixosSystem {
+        inherit system;
+
+        modules = [
+          ./system/gospel/configuration.nix
+        ];
+      };
+    };
+
+    devShells.${system} = {
+      default = pkgs.mkShell {
+        name = "nixosbuildshell";
+        buildInputs = with pkgs; [
+          git
+          git-crypt
+          nixFlakes
+          alejandra
+          pre-commit
+        ];
+
+        shellHook = ''
+          echo "You can apply this flake to your system with nixos-rebuild switch --flake .#"
+
+            PATH=${pkgs.writeShellScriptBin "nix" ''
+            ${pkgs.nixFlakes}/bin/nix --experimental-features "nix-command flakes" "$@"
+          ''}/bin:$PATH
+        '';
+      };
+    };
+
+    formatter = pkgs.alejandra;
+  };
+}