diff --git a/packages/beancount-smart_importer/default.nix b/packages/beancount-smart_importer/default.nix
new file mode 100644
index 0000000..9257137
--- /dev/null
+++ b/packages/beancount-smart_importer/default.nix
@@ -0,0 +1,33 @@
+{ lib
+, python3
+}: let
+  pname = "smart_importer";
+  version = "0.5";
+in python3.pkgs.buildPythonApplication {
+  inherit pname version;
+
+  src = python3.pkgs.fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-n0mBayg3Ny/5eHByonDnqpDeErv3tDhp577cCoM6l1I=";
+  };
+
+  format = "pyproject";
+
+  propagatedBuildInputs = [
+    python3.pkgs.beancount
+    python3.pkgs.scikit-learn
+    python3.pkgs.numpy
+  ];
+
+  buildInputs = [
+    python3.pkgs.setuptools
+    python3.pkgs.setuptools_scm
+  ];
+
+  meta = {
+    homepage = "https://github.com/beancount/smart_importer";
+    description = "Augment Beancount importers with machine learning functionality";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.minion3665 ];
+  };
+}