diff --git a/build.lua b/build.lua
index 1bae1b5..19ccacf 100644
--- a/build.lua
+++ b/build.lua
@@ -1,6 +1,5 @@
 local plugin_dir = vim.fn.fnamemodify(debug.getinfo(1, "S").source:sub(2), ":p:h") -- got this from https://lazy.folke.io/developers#building
 
--- TODO not the best loader but a simple example? urls dont work
 local os_uname = vim.loop.os_uname()
 
 local arch = os_uname.machine
@@ -19,7 +18,18 @@ end
 -- 	shasum = vim.fn.system("sha256sum " .. path .. 'native' .. ext)
 -- end
 
-local native_path = plugin_dir .. "/lua/codemp/native." .. ext
+local native_path = plugin_dir .. "/lua/codemp/new-native." .. ext
+local replace_native_path = plugin_dir .. "/lua/codemp/native." .. ext
 local download_url_native = string.format("https://code.mp/releases/lua/codemp-lua-%s-%s.%s", arch, platform, ext)
 print("downloading codemp native lua extension...")
 vim.system({"curl", "-s", "-o", native_path, download_url_native }):wait() -- TODO can we run this asynchronously?
+print("downloaded! exit nvim to reload library")
+
+vim.api.nvim_create_autocmd(
+	{"ExitPre"},
+	{
+		callback = function (_ev)
+			vim.system({"sleep", "1", ";", "mv", native_path, replace_native_path}, { detach = true })
+		end
+	}
+)