chore(c): Update

c/flake.nix

@@ -16,17 +16,52 @@
   in {
     devShells.default = pkgs.mkShell {
       packages = with pkgs; [
-        cmake
+        #cmake
         gcc
+        #gccStdenv
         gnumake
 
-        valgrind
+        # valgrind
 
-        astyle
+        #astyle
+
+        # CUDA https://nixos.wiki/wiki/CUDA#cudatoolkit.2C_cudnn.2C_and_related_packages
+#        git gitRepo gnupg autoconf curl
+#        procps gnumake util-linux m4 gperf unzip
+#        cudatoolkit linuxPackages.nvidia_x11
+#        libGLU libGL
+#        xorg.libXi xorg.libXmu freeglut
+#        xorg.libXext xorg.libX11 xorg.libXv xorg.libXrandr zlib
+#        xorg.libXinerama
+#        ncurses5 stdenv.cc binutils
+#
+#        glib
+#        glibc
+#
+#        intel-ocl
+#        intel-compute-runtime
+#        opencl-clhpp
+#        opencl-clang
+#        opencl-headers
+#        ocl-icd
+#
+#        pkgconf
+#        waylandpp
+#        xorg.libXcursor
 
         # You might want to use your own IDE.
-        # (jetbrains.plugins.addPlugins jetbrains.clion [ "github-copilot" ])
+        #(jetbrains.plugins.addPlugins jetbrains.clion [ "github-copilot" ])
+        #vscodium
       ];
+
+      shellHook = ''
+        export CUDA_PATH=${pkgs.cudatoolkit}
+        # export LD_LIBRARY_PATH=${pkgs.linuxPackages.nvidia_x11}/lib:${pkgs.ncurses5}/lib
+        # export LD_LIBRARY_PATH="${pkgs.stdenv.cc.cc.lib}/lib"
+        export LD_LIBRARY_PATH="${pkgs.libGL}/lib/:${pkgs.stdenv.cc.cc.lib}/lib/:${pkgs.glibc}/lib"
+        export EXTRA_LDFLAGS="-L/lib -L${pkgs.linuxPackages.nvidia_x11}/lib"
+        export EXTRA_CCFLAGS="-I/usr/include"
+      '';
     };
   });
 }