Run integration tests in CI

flake.nix

@@ -0,0 +1,33 @@
+{
+  description = "Roo Code development environment";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.11";
+  };
+
+  outputs = { self, nixpkgs, ... }: let
+    systems = [ "aarch64-darwin" "x86_64-linux" ];
+
+    forAllSystems = nixpkgs.lib.genAttrs systems;
+
+    mkDevShell = system: let
+      pkgs = import nixpkgs { inherit system; };
+    in pkgs.mkShell {
+      name = "roo-code";
+      
+      packages = with pkgs; [
+        zsh
+        nodejs_18
+        corepack_18
+      ];
+
+      shellHook = ''
+        exec zsh
+      '';
+    };
+  in {
+    devShells = forAllSystems (system: {
+      default = mkDevShell system;
+    });
+  };
+}