Fix version detection

Author: moogle19

lib/bandit/native.ex

@@ -6,6 +6,7 @@ defmodule Bandit.Native do
     crate: "bandit_native",
     base_url: "https://github.com/moogle19/bandit_native/releases/download/v#{version}",
     force_build: System.get_env("RUSTLER_PRECOMPILATION_BANDIT_NATIVE_BUILD") in ["1", "true"],
+    mode: if(Mix.env() == :prod, do: :release, else: :debug),
     version: version
 
   def mask(_payload, _mask), do: :erlang.nif_error(:nif_not_loaded)

mix.exs

@@ -1,13 +1,17 @@
 defmodule BanditNative.MixProject do
   use Mix.Project
 
+  @version "0.1.0"
+
   def project do
     [
       app: :bandit_native,
-      version: "0.1.0",
-      elixir: "~> 1.14",
+      version: @version,
+      elixir: "~> 1.9",
       start_permanent: Mix.env() == :prod,
-      deps: deps()
+      deps: deps(),
+      description: "Native functions for bandit",
+      package: package()
     ]
   end
 
@@ -21,8 +25,18 @@ defmodule BanditNative.MixProject do
   # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
-      {:rustler, "~> 0.27"},
-      {:rustler_precompiled, "~> 0.5"}
+      {:rustler_precompiled, "~> 0.5"},
+      {:rustler, ">= 0.0.0", optional: true}
+    ]
+  end
+
+  defp package do
+    [
+      name: "bandit_native",
+      maintainers: ["Kevin Seidel"],
+      licenses: ["MIT"],
+      links: %{"GitHub" => "https://github.com/moogle19/bandit_native"},
+      files: ~w(.formatter.exs mix.exs README.md lib native checksum-*.exs)
     ]
   end
 end