add shell environment for Nix

default.nix

@@ -1,27 +0,0 @@
-{ pkgs ? import <nixpkgs> { } }:
-let
-  odin-unwrapped = pkgs.llvmPackages_11.stdenv.mkDerivation (rec {
-    name = "odin-unwrapped";
-    src = ./.;
-    dontConfigure = true;
-    nativeBuildInputs = [ pkgs.git ];
-    buildPhase = ''
-      make debug SHELL=${pkgs.llvmPackages_11.stdenv.shell}
-    '';
-    installPhase = ''
-      mkdir -p $out/bin
-      cp odin $out/bin/odin
-      cp -r core $out/bin/core
-    '';
-  });
-  path = builtins.map (path: path + "/bin") (with pkgs.llvmPackages_11; [
-    bintools
-    llvm
-    clang
-    lld
-  ]);
-in
-pkgs.writeScriptBin "odin" ''
-  #!${pkgs.llvmPackages_11.stdenv.shell} 
-  PATH="${(builtins.concatStringsSep ":" path)}" exec ${odin-unwrapped}/bin/odin $@
-''

shell.nix

@@ -0,0 +1,11 @@
+{ pkgs ? import <nixpkgs> {} }:
+pkgs.mkShell {
+  name = "odin";
+  nativeBuildInputs = with pkgs; [
+    git
+    clang_17
+    llvmPackages_17.llvm
+    llvmPackages_17.bintools
+  ];
+  shellHook="CXX=clang++";
+}