pc changes

lib/shells/coreboot.nix

@@ -0,0 +1,27 @@
+let
+  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-23.11";
+
+  pkgs = import nixpkgs {
+    config = {};
+    overlays = [];
+  };
+in
+  pkgs.mkShellNoCC {
+    packages = with pkgs; [
+      m4
+      bison
+      ncurses
+      gcc
+      clang
+      gnat
+      zlib
+      flex
+      pkg-config
+      curl
+      zlib
+      coreboot-toolchain.x64
+    ];
+
+    GREETING = "You're now in the coreboot build shell!;";
+    shellHook = ''cd /home/vali/repos/coreboot && echo $GREETING'';
+  }