diff --git a/config/.neutrinorc.js b/config/.neutrinorc.js
index a925bde..49c96a2 100644
--- a/config/.neutrinorc.js
+++ b/config/.neutrinorc.js
@@ -1,14 +1,12 @@
 const airbnbBase = require('@neutrinojs/airbnb-base');
 const library = require('@neutrinojs/library');
 const mocha = require('@neutrinojs/mocha');
+const react = require('@neutrinojs/react');
 const nodeExternals = require('webpack-node-externals');
 
-module.exports = () => ({
+module.exports = {
   options: {},
   use: [
-    (neutrino) => {
-      neutrino.options.output = '.';
-    },
     airbnbBase({
       eslint: {
         cache: false,
@@ -16,14 +14,53 @@ module.exports = () => ({
       },
     }),
     (neutrino) => {
-      const {name} = neutrino.options.packageJson;
-      library({
+      const {files, name} = neutrino.options.packageJson;
+      files
+        .filter((file) => {
+          try {
+            require.resolve(`${neutrino.options.source}/${file}`);
+            return true;
+          }
+          catch (error) {
+            if (file.match(/\.js$/)) {
+              try {
+                require.resolve(`${neutrino.options.source}/${file.slice(0, -3)}`);
+                return true;
+              }
+              catch (error) {
+                return false;
+              }
+            }
+            return false;
+          }
+        })
+        .map((file) => file.match(/\.js$/) ? file.slice(0, -3) : file)
+        .forEach((file) => {
+          neutrino.options.mains[file] = {entry: 'index' === file ? file : `./src/${file}`};
+        });
+      neutrino.options.output = '.';
+      react({
         clean: false,
-        name,
-        target: 'node',
       })(neutrino);
-    },
-    (neutrino) => {
+      Object.keys(neutrino.options.mains).forEach((main) => {
+        neutrino.config.plugins.delete(`html-${main}`);
+      });
+      neutrino.config
+        .devtool('source-map')
+        .target('node')
+        .optimization
+          .splitChunks(false)
+          .runtimeChunk(false)
+        .end()
+        .output
+          .filename('[name].js')
+          .library(name)
+          .libraryTarget('umd')
+          .umdNamedDefine(true)
+        .end()
+        .node
+          .set('__dirname', false)
+          .set('__filename', false);
       const options = neutrino.config.module
         .rule('compile')
         .use('babel')
@@ -33,4 +70,4 @@ module.exports = () => ({
     },
     mocha(),
   ],
-});
+};
diff --git a/config/split-config.js b/config/split-config.js
deleted file mode 100644
index 219068a..0000000
--- a/config/split-config.js
+++ /dev/null
@@ -1,52 +0,0 @@
-const react = require('@neutrinojs/react');
-const nodeExternals = require('webpack-node-externals');
-
-const config = require('./.neutrinorc');
-
-module.exports = ({name, files}, clientMains) => {
-  const mains = files
-    .filter((file) => file.match(/\.js$/))
-    .map((file) => file.slice(0, -3))
-    .reduce((r, file) => ({...r, [file]: file}), {});
-
-  if (clientMains.length > 0) {
-    const serverMains = Object
-      .entries(mains)
-      .filter(([key]) => -1 === clientMains.indexOf(key))
-      .reduce((r, [k, v]) => ({...r, [k]: v}), {});
-    const serverConfig = config();
-    serverConfig.options.mains = serverMains;
-    const clientConfig = config();
-    clientConfig.options.mains = clientMains.reduce((r, file) => ({...r, [file]: file}), {});
-    clientConfig.use[2] = (neutrino) => {
-      react({
-        clean: false,
-      })(neutrino);
-      Object.keys(clientConfig.options.mains).forEach((main) => {
-        neutrino.config.plugins.delete(`html-${main}`);
-      });
-      neutrino.config
-        .target('web')
-        .optimization
-          .splitChunks(false)
-          .runtimeChunk(false)
-        .end()
-        .output
-          .filename('[name].js')
-          .library(name)
-          .libraryTarget('umd')
-          .umdNamedDefine(true);
-    };
-    clientConfig.use.push((neutrino) => {
-      neutrino.config.node.set('Buffer', true);
-    });
-    return [serverConfig, clientConfig];
-  }
-  else {
-    const serverConfig = config();
-    serverConfig.options = {
-      mains,
-    };
-    return [serverConfig];
-  }
-};