diff --git a/.browserslistrc b/.browserslistrc
index 35d4c96..64e7ec0 100644
--- a/.browserslistrc
+++ b/.browserslistrc
@@ -1,3 +1,9 @@
-# Browsers that we support
+[production]
 defaults
 not IE 11
+
+
+[development]
+last 2 Chrome versions
+last 2 Firefox versions
+last 1 Safari version
diff --git a/config/build/buildPlugins.ts b/config/build/buildPlugins.ts
index 6aeef70..3da6ad9 100644
--- a/config/build/buildPlugins.ts
+++ b/config/build/buildPlugins.ts
@@ -11,6 +11,7 @@ import { BuildOptions } from './types/config';
 export function buildPlugins({
     paths, isDev, apiUrl, project,
 }: BuildOptions): webpack.WebpackPluginInstance[] {
+    const isProd = !isDev;
     const plugins = [
         new HtmlWebpackPlugin({
             template: paths.html,
@@ -25,11 +26,6 @@ export function buildPlugins({
             __API__: JSON.stringify(apiUrl),
             __PROJECT__: JSON.stringify(project),
         }),
-        new CopyPlugin({
-            patterns: [
-                { from: paths.locales, to: paths.buildLocales },
-            ],
-        }),
         new CircularDependencyPlugin({
             exclude: /node_modules/,
             failOnError: true,
@@ -52,6 +48,17 @@ export function buildPlugins({
             openAnalyzer: false,
         }));
     }
+    if (isProd) {
+        plugins.push(new MiniCssExtractPlugin({
+            filename: 'css/[name].[contenthash:8].css',
+            chunkFilename: 'css/[name].[contenthash:8].css',
+        }));
+        plugins.push(new CopyPlugin({
+            patterns: [
+                { from: paths.locales, to: paths.buildLocales },
+            ],
+        }));
+    }
 
     return plugins;
 }
diff --git a/config/build/buildWebpackConfig.ts b/config/build/buildWebpackConfig.ts
index 7adb72e..6d8355e 100644
--- a/config/build/buildWebpackConfig.ts
+++ b/config/build/buildWebpackConfig.ts
@@ -22,7 +22,7 @@ export function buildWebpackConfig(options: BuildOptions): webpack.Configuration
             rules: buildLoaders(options),
         },
         resolve: buildResolvers(options),
-        devtool: isDev ? 'inline-source-map' : undefined,
+        devtool: isDev ? 'eval-cheap-module-source-map' : undefined,
         devServer: isDev ? buildDevServer(options) : undefined,
     };
 }
diff --git a/config/build/loaders/buildBabelLoader.ts b/config/build/loaders/buildBabelLoader.ts
index 7f9ac1c..2fda218 100644
--- a/config/build/loaders/buildBabelLoader.ts
+++ b/config/build/loaders/buildBabelLoader.ts
@@ -7,24 +7,19 @@ interface BuildBabelLoaderProps extends BuildOptions {
 }
 
 export function buildBabelLoader({ isDev, isTsx }: BuildBabelLoaderProps) {
+    const isProd = !isDev;
     return {
         test: isTsx ? /\.(jsx|tsx)$/ : /\.(js|ts)$/,
         exclude: /node_modules/,
         use: {
             loader: 'babel-loader',
             options: {
+                cacheDirectory: true,
                 presets: ['@babel/preset-env'],
                 plugins: [
-                    [
-                        'i18next-extract',
-                        {
-                            locales: ['ru', 'en'],
-                            keyAsDefaultValue: true,
-                        },
-                    ],
                     ['@babel/plugin-transform-typescript', { isTsx }],
                     '@babel/plugin-transform-runtime',
-                    isTsx && [
+                    isTsx && isProd && [
                         babelRemovePropsPlugin,
                         { props: ['data-testid'] },
                     ],
diff --git a/config/build/loaders/buildCssLoader.ts b/config/build/loaders/buildCssLoader.ts
index 8c5f707..210d9e0 100644
--- a/config/build/loaders/buildCssLoader.ts
+++ b/config/build/loaders/buildCssLoader.ts
@@ -3,6 +3,7 @@ import MiniCssExtractPlugin from 'mini-css-extract-plugin';
 export function buildCssLoader(isDev: boolean) {
     return {
         test: /\.s[ac]ss$/i,
+        exclude: /node_modules/,
         use: [
             isDev ? 'style-loader' : MiniCssExtractPlugin.loader,
             {
diff --git a/package.json b/package.json
index 89cfab9..5bc350b 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,8 @@
     "test:ui:html": "reg-cli --from .loki/report.json --report .loki/report.html",
     "storybook": "start-storybook -p 6006 -c ./config/storybook",
     "storybook:build": "build-storybook -c ./config/storybook",
-    "generate:slice": "node ./scripts/createSlice/index.js"
+    "generate:slice": "node ./scripts/createSlice/index.js",
+    "postinstall": "node ./scripts/clear-cache.js"
   },
   "keywords": [],
   "author": "",
diff --git a/scripts/clear-cache.js b/scripts/clear-cache.js
new file mode 100644
index 0000000..41792ff
--- /dev/null
+++ b/scripts/clear-cache.js
@@ -0,0 +1,4 @@
+// path/fs
+console.log('CLEAR CACHE');
+// to delete cache in node_modules
+// rmdir /s /q .\\node_modules\\.cache