Visual and code overhaul, including Nix support

flake.nix

@@ -0,0 +1,33 @@
+{
+  description = "Development environment for atashdotdev with Node and pnpm";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/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
+      {
+        devShells.default = pkgs.mkShell {
+          packages = with pkgs; [
+            nodejs_24
+            nodePackages.pnpm
+          ];
+
+          shellHook = ''
+            echo "🚀 atashdotdev development environment loaded!"
+            echo "Node version: $(node --version)"
+            echo "pnpm version: $(pnpm --version)"
+
+            if [ ! -d "node_modules" ]; then
+              echo "📦 Installing pnpm dependencies..."
+              pnpm install --frozen-lockfile
+            fi
+          '';
+        };
+      });
+}