diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..1d953f4
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use nix
diff --git a/common-attrs.nix b/common-attrs.nix
new file mode 100644
index 0000000..baf6681
--- /dev/null
+++ b/common-attrs.nix
@@ -0,0 +1,7 @@
+pkgs:
+{
+  buildInputs = with pkgs; [
+    restic
+    ruby
+  ];
+}
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..7f90db2
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,7 @@
+{ pkgs ? import <nixpkgs> {} }:
+let
+  commonAttrs = import ./common-attrs.nix pkgs;
+in
+pkgs.mkShell {
+  inherit (commonAttrs) buildInputs;
+}