Use Webpack to copy static folder

next.config.js

@@ -0,0 +1,28 @@
+const path = require("path")
+const CopyPlugin = require("copy-webpack-plugin")
+
+module.exports = {
+    // target: "serverless",
+    // future: {
+    //     webpack5: true,
+    // },
+    webpack: function (config, { dev, isServer }) {
+        // Fixes npm packages that depend on `fs` module
+        if (!isServer) {
+            config.resolve.fallback.fs = false
+        }
+        // Copy files to serverless functions
+        if (!dev) {
+            config.plugins.push(
+                new CopyPlugin({
+                    patterns: [{
+                        from: 'static',
+                        to: 'static'
+                    }],
+                })
+            )
+        }
+
+        return config
+    },
+}