Bump LLVM and Clang in dev shell

shell.nix

@@ -4,55 +4,40 @@
 }:
 
 let
-    #unstablePkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/nixpkgs-unstable.tar.gz") {};
+  #unstablePkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/nixpkgs-unstable.tar.gz") {};
 in
 pkgs.mkShell {
   buildInputs = [
     # GStreamer
     pkgs.gst_all_1.gstreamer
-    pkgs.gst_all_1.gstreamer.dev
     pkgs.gst_all_1.gst-rtsp-server
-    pkgs.gst_all_1.gst-rtsp-server.dev
     pkgs.gst_all_1.gst-plugins-ugly # For x264enc element
     pkgs.gst_all_1.gst-plugins-bad # For intervideo* elements
     pkgs.gst_all_1.gst-plugins-base
     pkgs.gst_all_1.gst-plugins-good
     pkgs.gst_all_1.gst-libav # For avenc_aac
     pkgs.gst_all_1.gst-vaapi
 
-    pkgs.llvmPackages_14.llvm
-    pkgs.llvmPackages_14.clang
-    pkgs.llvmPackages_14.lldb
-    pkgs.llvmPackages_14.lld
-    pkgs.clang-tools_14
-
-    # GNUstep
-    pkgs.gnustep.base
-    pkgs.gnustep.make
-
-    pkgs.glib
-    pkgs.glib.dev
-    pkgs.gobject-introspection
+    pkgs.clang_18
+    pkgs.lldb_18
+    pkgs.clang-tools_18
     pkgs.meson
     pkgs.pkg-config
     pkgs.ninja
 
-    # vaapi (vainfo)
-    pkgs.libva-utils
+    # GNUstep
+    pkgs.gnustep.base
+    pkgs.gnustep.make
 
     pkgs.graphviz
-
     pkgs.udev
-    pkgs.udev.dev
-
-    # MicroHTTPKit
-    pkgs.microhttpkit
-
     pkgs.libdispatch
-
-    # MicroHTTPKit Dev (TODO: Move into Libraries/nix)
-    pkgs.libmicrohttpd
+    pkgs.microhttpkit
+    pkgs.glib
     pkgs.xctest
+
+    # vaapi (vainfo)
+    pkgs.libva-utils
   ];
 
   shellHook = ''