feat: working precompiled download

mix.exs

@@ -88,7 +88,8 @@ defmodule NxIREE.MixProject do
  dir: dir,
  source_dir: source_dir,
  use_precompiled: use_precompiled,
- nx_iree_so_path: Path.join("cache", "libnx_iree.so")
+ nx_iree_so_path: Path.join("cache", "libnx_iree.so"),
+ nx_iree_tar_gz_path: Path.join("cache", "libnx_iree.tar.gz")
  }
  end
 
@@ -209,12 +210,35 @@ defmodule NxIREE.MixProject do
 
  # This is the precompiled path, which should match what's included in releases
  # by the github actions workflows
- source_so_path = "libnx_iree-#{os_name}-#{arch}-nif-#{nif_version}.so"
+ version_path = "libnx_iree-#{os_name}-#{arch}-nif-#{nif_version}"
+ source_tar_path = "#{version_path}.tar.gz"
+ zip_name = nx_iree_config.nx_iree_tar_gz_path
 
  download!(
- "https://github.com/elixir-nx/nx_iree/releases/download/v#{@version}/#{source_so_path}",
- nx_iree_config.nx_iree_so_path
+ "https://github.com/elixir-nx/nx_iree/releases/download/v#{@version}/#{source_tar_path}",
+ zip_name
  )
+
+ parent_dir = Path.dirname(zip_name)
+
+ :ok =
+ zip_name
+ |> String.to_charlist()
+ |> :erl_tar.extract([:compressed, cwd: String.to_charlist(parent_dir)])
+
+ File.rename(
+ Path.join([parent_dir, version_path, "libnx_iree.so"]),
+ Path.join(parent_dir, "libnx_iree.so")
+ )
+
+ File.rename(
+ Path.join([parent_dir, version_path, "iree-runtime"]),
+ Path.join(parent_dir, "iree-runtime")
+ )
+
+ File.rmdir(Path.join(parent_dir, version_path))
+
+ :ok
  end
 
  defp assert_network_tool!() do