noop: add nix flake

Author: jacob-alford

flake.lock

@@ -0,0 +1,25 @@
+{
+  description = "A shell environment for building and testing build-tools";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = { nixpkgs, ... }:
+    let
+      forAllSystems = function:
+        nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed
+          (system: function nixpkgs.legacyPackages.${system});
+    in
+    {
+      formatter = forAllSystems (pkgs: pkgs.alejandra);
+      devShells = forAllSystems (pkgs: {
+        default = pkgs.mkShell {
+          packages = with pkgs; [
+            pnpm
+            nodejs_22
+          ];
+        };
+      });
+    };
+}