diff --git a/package.json b/package.json
index 7e8bf39..5839166 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,6 @@
   "devDependencies": {
     "@babel/plugin-proposal-class-properties": "^7.12.1",
     "@babel/plugin-proposal-decorators": "^7.12.12",
-    "@glimmer/babel-plugin-glimmer-env": "^2.0.0-beta.1",
     "@glimmerx/babel-plugin-component-templates": "^0.3.0",
     "@glimmerx/component": "^0.3.0",
     "@glimmerx/core": "^0.3.0",
diff --git a/snowpack.config.js b/snowpack.config.js
index faba008..f7165f9 100644
--- a/snowpack.config.js
+++ b/snowpack.config.js
@@ -6,6 +6,7 @@ module.exports = {
   buildOptions: {
     // 构建输出到 `dist` 目录
     out: "dist",
+    sourceMaps: true,
   },
   devOptions: {
     port: 4000,
@@ -13,7 +14,6 @@ module.exports = {
   // 这是一个隐性依赖，项目并不会安装 @glimmer/core 而是安装 @glimmerx/core，但
   // 运行时会报错，所以我们让 snowpack 负责安装这个依赖
   install: ["@glimmer/core"],
-  // installOptions: {},
   mount: {
     // `public` 目录映射到应用程序根路径
     public: "/",
@@ -27,10 +27,6 @@ module.exports = {
         input: [".js", ".jsx", ".mjs", ".ts", ".tsx"],
         transformOptions: {
           plugins: [
-            [
-              "@glimmer/babel-plugin-glimmer-env",
-              { DEBUG: process.env.NODE_ENV === "development" },
-            ],
             "@glimmerx/babel-plugin-component-templates",
             ["@babel/plugin-proposal-decorators", { legacy: true }],
             "@babel/plugin-proposal-class-properties",
diff --git a/src/APP.ts b/src/application.ts
similarity index 100%
rename from src/APP.ts
rename to src/application.ts
diff --git a/src/index.ts b/src/index.ts
index b1ce0b0..b56d8f5 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,5 +1,5 @@
 import { renderComponent } from "@glimmerx/core";
-import Application from "./APP";
+import Application from "./application";
 
 const rootElement = document.querySelector(".glimmer-application");
 
diff --git a/yarn.lock b/yarn.lock
index be84cdc..be0a142 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -877,14 +877,6 @@
   resolved "https://registry.yarnpkg.com/@ember-data/rfc395-data/-/rfc395-data-0.0.4.tgz#ecb86efdf5d7733a76ff14ea651a1b0ed1f8a843"
   integrity sha512-tGRdvgC9/QMQSuSuJV45xoyhI0Pzjm7A9o/MVVA3HakXIImJbbzx/k/6dO9CUEQXIyS2y0fW6C1XaYOG7rY0FQ==
 
-"@glimmer/babel-plugin-glimmer-env@^2.0.0-beta.1":
-  version "2.0.0-beta.1"
-  resolved "https://registry.yarnpkg.com/@glimmer/babel-plugin-glimmer-env/-/babel-plugin-glimmer-env-2.0.0-beta.1.tgz#3ef1052441010394dcab7394a43110fc4cc29a80"
-  integrity sha512-R7hsEHlxcgoxs8ZY81bh3u7aIL3bFxjXAV31Kx9FaTDhpTnT47OTBEaVAjl4efehAbGCFPeBKY14RdNF18+g0Q==
-  dependencies:
-    "@babel/core" "^7.5.5"
-    babel-plugin-debug-macros "^0.3.3"
-
 "@glimmer/babel-plugin-strict-template-precompile@2.0.0-beta.11":
   version "2.0.0-beta.11"
   resolved "https://registry.yarnpkg.com/@glimmer/babel-plugin-strict-template-precompile/-/babel-plugin-strict-template-precompile-2.0.0-beta.11.tgz#73b172c138f257a42d16f38d7b1dfd052050235f"