Use nix flake to get dev shell

flake.nix

@@ -0,0 +1,21 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in
+      rec {
+        devShells.default = pkgs.mkShellNoCC {
+          packages = with pkgs; [
+            nodejs_latest
+            pnpm
+          ];
+        };
+      }
+    );
+}