diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..07f0cae
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,8 @@
+{ pkgs ? import <nixpkgs> {}
+}:
+
+pkgs.mkShell {
+  name = "install-nix-action-shell";
+
+  buildInputs = [ pkgs.yarn ];
+}