add development nix-shell file

shell.nix

@@ -0,0 +1,26 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+  pkgs.mkShell {
+    buildInputs = with pkgs; [
+      # Rust
+      cargo
+      rustc
+
+      # Compiler
+      gnumake
+      clang
+      llvmPackages.libclang
+      llvmPackages.clang
+
+      # System
+      pkg-config
+      util-linux
+    ];
+    
+    shellHook = ''
+      export LIBCLANG_PATH="${pkgs.llvmPackages.libclang.lib}/lib"
+      export CLANG_PATH="${pkgs.llvmPackages.clang}/bin/clang"
+      export RUST_BACKTRACE=1
+      echo "Ready to make some rust!"
+    '';
+}