Add nix build config

.gitignore

@@ -161,3 +161,6 @@ cython_debug/
 
 # nixos-shell
 nixos.qcow2
+
+# nix-build
+result

default.nix

@@ -0,0 +1,10 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+let
+  pypkgs = pkgs.python38Packages;
+in pypkgs.buildPythonPackage {
+  name = "intake";
+  src = builtins.path { path = ./.; name = "intake"; };
+  format = "pyproject";
+  propagatedBuildInputs = with pypkgs; [ setuptools ];
+}

shell.nix

@@ -1,5 +1,8 @@
 { pkgs ? import <nixpkgs> {} }:
 
-pkgs.mkShell {
+let
+  intake = import ./default.nix {};
+in pkgs.mkShell {
+  inputsFrom = [ intake ];
   buildInputs = [ pkgs.nixos-shell ];
 }