feat: split flake into multiple hosts and add homelab config

flake.nix

@@ -4,8 +4,11 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     nixos-hardware.url = "github:nixos/nixos-hardware";
     home-manager.url = "github:nix-community/home-manager";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+    sops-nix.url = "github:Mic92/sops-nix";
+    sops-nix.inputs.nixpkgs.follows = "nixpkgs";
   };
-  outputs = inputs@{self, nixpkgs, nixos-hardware, ...}:
+  outputs = inputs@{self, nixpkgs, nixos-hardware, sops-nix, ...}:
   {
     nixosConfigurations = {
       neon = nixpkgs.lib.nixosSystem {
@@ -13,11 +16,18 @@
         modules = [
           # https://github.com/NixOS/nixos-hardware/blob/master/README.md#using-nix-flakes-support
           nixos-hardware.nixosModules.gpd-pocket-3
-          ./configuration.nix
+          ./hosts/neon
            # override from nixos-hardware
           ({config, lib, ...}: { services.xserver.videoDrivers = lib.mkForce [ "modesetting" ]; })
         ];
       };
+      lithium = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          ./hosts/lithium
+          sops-nix.nixosModules.sops
+        ];
+      };
     }; 
   };
 }