flake: add nur as an input

flake.lock

@@ -436,6 +436,21 @@
         "type": "github"
       }
     },
+    "nurpkgs": {
+      "locked": {
+        "lastModified": 1709670325,
+        "narHash": "sha256-8kaRyki/vK0dQeH6tRxy/xW9Ocq2jF5rwEsH5iLFbzM=",
+        "owner": "nix-community",
+        "repo": "NUR",
+        "rev": "c10daa69f6a06c5743ab07c111ee546ce6698098",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "NUR",
+        "type": "github"
+      }
+    },
     "pre-commit-hooks-nix": {
       "inputs": {
         "flake-compat": "flake-compat_2",
@@ -474,6 +489,7 @@
         "nixos-hardware": "nixos-hardware",
         "nixos-unstable": "nixos-unstable",
         "nixpkgs": "nixpkgs",
+        "nurpkgs": "nurpkgs",
         "pre-commit-hooks-nix": "pre-commit-hooks-nix",
         "treefmt-nix": "treefmt-nix"
       }

flake.nix

@@ -39,6 +39,8 @@
 
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
 
+    nurpkgs.url = "github:nix-community/NUR";
+
     agenix = {
       url = "github:ryantm/agenix";
       inputs = {

system/flakes/Styx.nix

@@ -4,6 +4,7 @@ let
   default-system = "aarch64-darwin";
 
   overlay-x86 = _: _: { pkgs-x86 = import nixpkgs { system = "x86_64-darwin"; }; };
+  overlay-nur = inputs.nurpkgs.overlay;
   overlay-agenix = agenix.overlays.default;
   overlay-attic = inputs.attic.overlays.default;
   overlay-mkalias = _: _: { inherit (inputs.mkalias.packages.${default-system}) mkalias; };
@@ -12,6 +13,7 @@ let
   nixpkgsConfig = {
     overlays = [
       overlay-x86
+      overlay-nur
       overlay-agenix
       overlay-attic
       overlay-mkalias