feat: add uConsole with separate nixpkgs (nixos-24.11)

- Uses nixpkgs-uconsole (nixos-24.11) for uConsole only
- Other hosts (lazyworkhorse, cyt-pi) stay on nixos-unstable
- Enables nixos-uconsole module compatibility
- Includes full CM5 configuration (HAM, SDR, security tools, GPS)

flake.nix

@@ -12,10 +12,18 @@
       url = "git+https://git.lix.systems/lix-project/lix?ref=main";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    # uConsole CM5 hardware support (uses older nixpkgs for module compatibility)
+    nixpkgs-uconsole.url = "github:nixos/nixpkgs/nixos-24.11";
+    nixos-uconsole = {
+      url = "github:nixos-uconsole/nixos-uconsole";
+      inputs.nixpkgs.follows = "nixpkgs-uconsole";
+    };
+    # Raspberry Pi 5 hardware support
+    nixos-hardware.url = "github:nixos/nixos-hardware/master";
     self.submodules = true;
   };
 
-  outputs = { self, nixpkgs, agenix, lix, ... }@inputs:
+  outputs = { self, nixpkgs, nixpkgs-uconsole, agenix, lix, nixos-uconsole, nixos-hardware, ... }@inputs:
     let
       system = "x86_64-linux";
       keys = import ./lib/keys.nix;
@@ -79,6 +87,22 @@
               ./hosts/cyt-pi/hardware-configuration.nix
             ];
           };
+
+          uConsole = nixpkgs-uconsole.lib.nixosSystem {
+            specialArgs = { inherit self keys paths inputs; };
+            modules = [
+              {
+                nixpkgs.overlays = overlays;
+                nixpkgs.config.allowUnfree = true;
+                nixpkgs.hostPlatform = "aarch64-linux";
+                nix.package = lix.packages."aarch64-linux".default;
+              }
+              nixos-uconsole.nixosModules.uconsole-cm5
+              nixos-hardware.nixosModules.raspberry-pi-5
+              ./hosts/uconsole/configuration.nix
+              ./hosts/uconsole/hardware-configuration.nix
+            ];
+          };
         };
         devShells.${system}.default = devShell;
       };