diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..4a4726a
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use_nix
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..48a8634
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,9 @@
+{
+  pkgs ? import <nixpkgs> {},
+}:
+
+pkgs.mkShell {
+  buildInputs = [
+    pkgs.shellcheck
+  ];
+}