diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..d83cf80
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,5 @@
+if has lorri; then
+  eval "$(lorri direnv)"
+else
+  use nix
+fi
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..857021c
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,11 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+with pkgs;
+
+mkShellNoCC {
+  buildInputs = [
+    autoconf
+    automake
+    gnumake
+  ];
+}