default.nix

@@ -48,7 +48,6 @@ let
     name,
     src,
     nodePackages ? null,
-    routes ? [ "/" ],
   }:
     let
       nodeSource = symlinkJoin {
@@ -57,12 +56,6 @@ let
           builderPkg.lib
         ] ++ (if nodePackages != null then [ nodePackages ] else [ ]);
       };
-
-      baseWebpackConfig = builtins.readFile ./webpack.config.js;
-      webpackConfig = ''
-        const ROUTES = ${builtins.toJSON routes}
-      '' + "\n" + baseWebpackConfig;
-      webpackConfigFile = pkgs.writeText "${name}-webpack-config" webpackConfig;
     in
     stdenv.mkDerivation {
       inherit name;
@@ -77,7 +70,6 @@ let
 
       patchPhase = ''
         ln -sf ${nodeSource}/node_modules .
-        cp ${webpackConfigFile} webpack.config.js
       '';
 
       shellHook = ''

webpack.config.js

@@ -1,3 +1,5 @@
+const ROUTES = ['/', '/about', '/404', '/posts', '/posts/viveahk', '/posts/librebasics']
+
 const path = require('path')
 const HtmlWebpackPlugin = require('html-webpack-plugin')
 const PrerenderSPAPlugin = require('prerender-spa-plugin')