Add .nix files for development env

default.nix

@@ -0,0 +1,20 @@
+{ stdenv
+, pkgs ? (import <nixpkgs> {})
+}:
+
+let
+  env = with pkgs.rustPlatform; [
+    rustc
+    cargo
+  ];
+in
+
+stdenv.mkDerivation rec {
+    name = "unfug.org";
+    src = ./.;
+    version = "0.0.0";
+
+    buildInputs = [ env ];
+
+}
+

shell.nix

@@ -0,0 +1,7 @@
+{ pkgs ? (import <nixpkgs> {})
+}:
+
+(import ./default.nix) {
+  stdenv = pkgs.stdenv;
+  pkgs = pkgs;
+}