update nixpkgs to 25.05

flake.lock

@@ -20,16 +20,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1748344075,
-        "narHash": "sha256-PsZAY3H0e/PBoDVn4fLwGEmeSwESj7SZPZ6CMfgbWFU=",
+        "lastModified": 1748964450,
+        "narHash": "sha256-ZouDiXkUk8mkMnah10QcoQ9Nu6UW6AFAHLScS3En6aI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e0042dedfbc9134ef973f64e5c7f56a38cc5cc97",
+        "rev": "9ff500cd9e123f46c55855eca64beccead29b152",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixpkgs-unstable",
+        "ref": "release-25.05",
         "repo": "nixpkgs",
         "type": "github"
       }

flake.nix

@@ -2,7 +2,7 @@
   description = "headless browser designed for AI and automation";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "github:nixos/nixpkgs/release-25.05";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
@@ -19,27 +19,36 @@
           inherit system;
         };
 
+        # We need crtbeginS.o for building.
+        crtFiles = pkgs.runCommand "crt-files" { } ''
+          mkdir -p $out/lib
+          cp -r ${pkgs.gcc.cc}/lib/gcc $out/lib/gcc
+        '';
+
         # This build pipeline is very unhappy without an FHS-compliant env.
         fhs = pkgs.buildFHSEnv {
           name = "fhs-shell";
+          multiArch = true;
           targetPkgs =
             pkgs: with pkgs; [
+              # Build Tools
               zig
               zls
+              python3
               pkg-config
               cmake
               gperf
+
+              # GCC
+              gcc
+              gcc.cc.lib
+              crtFiles
+
+              # Libaries
               expat.dev
-              python3
               glib.dev
               glibc.dev
               zlib
-              ninja
-              gn
-              gcc-unwrapped
-              binutils
-              clang
-              clang-tools
             ];
         };
       in