diff --git a/.env.example b/.env.example
index 5319ccb..8f5ade7 100644
--- a/.env.example
+++ b/.env.example
@@ -1,2 +1,5 @@
 # please create .env.dev and .env.prod based on this file
 VITE_BASE=/
+VITE_DO_LOG_SCENERY=true
+VITE_DO_ENABLE_BUILTIN_SCENERIES=false
+VITE_DO_SHOW_BACK_MASEUKO=false
diff --git a/src/components/SceneryManager.jsx b/src/components/SceneryManager.jsx
index a10a243..f6106c4 100644
--- a/src/components/SceneryManager.jsx
+++ b/src/components/SceneryManager.jsx
@@ -166,7 +166,7 @@ export default function SceneryManager(props) {
     }, [setScenery]);
 
     useEffect(() => {
-        if(Constants.sceneryFiles.fetchDisable) return;
+        if(!Constants.sceneryFiles.enableBuiltIn) return;
         updateSceneryList();
     }, [updateSceneryList]);
 
diff --git a/src/helpers/constants.js b/src/helpers/constants.js
index 279a9d8..df7f06e 100644
--- a/src/helpers/constants.js
+++ b/src/helpers/constants.js
@@ -1,6 +1,8 @@
+import { readEnvBool, readEnvString} from './envHelper';
+
 const Constants = {
-    buildVersion: '1.7.2',
-    showBackMaseuko: false,
+    buildVersion: readEnvString('VITE_APP_VERSION') ?? 'unknown',
+    showBackMaseuko: readEnvBool('VITE_DO_SHOW_BACK_MASEUKO') ?? false,
     map: {
         zoomSensitivity: 0.002,
         zoomMin: 0.03,
@@ -15,7 +17,7 @@ const Constants = {
         mapZoomObjectDetailsThreshold: 0.5
     },
     parser: {
-        logSceneryAfterFinished: true,
+        logSceneryAfterFinished: readEnvBool('VITE_DO_LOG_SCENERY') ?? false,
         sceneryInfoVersionMin: 29,
         sceneryInfoVersionMax: 30,
         alwaysShowLogDialog: false,
@@ -73,7 +75,7 @@ const Constants = {
         invalidSceneryInfo: true
     },
     sceneryFiles: {
-        fetchDisable: true,
+        enableBuiltIn: readEnvBool('VITE_DO_ENABLE_BUILTIN_SCENERIES') ?? false,
         fetchBaseUrl: `${import.meta.env.BASE_URL}sceneries/`,
         fetchListUrl: `${import.meta.env.BASE_URL}sceneries/sceneries.json`,
     },
diff --git a/src/helpers/envHelper.js b/src/helpers/envHelper.js
new file mode 100644
index 0000000..4a1f869
--- /dev/null
+++ b/src/helpers/envHelper.js
@@ -0,0 +1,12 @@
+export const readEnvString = (key) => {
+    return import.meta.env[key];
+};
+
+export const readEnvBool = (key) => {
+    const value = import.meta.env[key];
+    switch(value) {
+        case "true": return true;
+        case "false": return false;
+        default: return null;
+    }
+};
diff --git a/vite.config.mjs b/vite.config.mjs
index c578a84..73fddce 100644
--- a/vite.config.mjs
+++ b/vite.config.mjs
@@ -1,5 +1,8 @@
 import { defineConfig, loadEnv } from 'vite';
 import react from '@vitejs/plugin-react';
+import fs from 'fs';
+
+const packageJson = JSON.parse(fs.readFileSync('./package.json', 'utf-8'));
 
 export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd(), '');
@@ -9,6 +12,9 @@ export default defineConfig(({ mode }) => {
     plugins: [
       react(),
     ],
+    define: {
+      'import.meta.env.VITE_APP_VERSION': JSON.stringify(packageJson.version),
+    },
     build: {
       target: 'es2015',
     },