diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..79759a3
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,14 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+pkgs.mkShell {
+  packages = with pkgs; [
+    go
+    gopls
+  ];
+
+  shellHook = ''
+    echo "DeathWatch development shell"
+    echo "Go: $(go version)"
+    echo "Run: go test ./..."
+  '';
+}