Pull in Hugo from unstable nixpkgs

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

flake.lock

@@ -129,6 +129,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1777954456,
+        "narHash": "sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9+hrDTkDU=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "549bd84d6279f9852cae6225e372cc67fb91a4c1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "resume": {
       "inputs": {
         "flake-utils": "flake-utils_2",
@@ -155,6 +171,7 @@
         "blog-source": "blog-source",
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable",
         "resume": "resume",
         "web-files": "web-files"
       }

flake.nix

@@ -1,6 +1,7 @@
 {
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable"; # for Hugo
     flake-utils.url = "github:numtide/flake-utils";
     resume.url = "git+https://dev.danilafe.com/DanilaFe/resume"; 
     resume.inputs.nixpkgs.follows = "nixpkgs";
@@ -14,12 +15,20 @@
     web-files.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, blog-source, nixpkgs, flake-utils, resume, web-files }:
+  outputs = { self, blog-source, nixpkgs, nixpkgs-unstable, flake-utils, resume, web-files }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         lib = import ./lib.nix {
           inherit blog-source;
-          pkgs = import nixpkgs { inherit system; };
+          pkgs = import nixpkgs {
+	    inherit system;
+
+	    overlays = [
+              (final: prev: {
+                hugo = (import nixpkgs-unstable { inherit system; }).hugo;
+	      })
+	    ];
+	  };
           resume = resume.defaultPackage.${system};
 	  web-files = web-files.defaultPackage.${system};
         };