diff --git a/packages/core/build/resolve.js b/packages/core/build/resolve.js
index 916a909..ad4f30e 100644
--- a/packages/core/build/resolve.js
+++ b/packages/core/build/resolve.js
@@ -7,6 +7,8 @@ const debug = D('@flecks/core/build/resolve');
 module.exports = function resolve({alias, fallback}, stubs) {
   debug('installing resolution magic');
   const {Module} = require('module');
+  // eslint-disable-next-line no-underscore-dangle
+  Module._initPaths();
   const {require: Mr} = Module.prototype;
   function preprocessMatchers(matchers) {
     return Object.entries(matchers)
diff --git a/packages/server/build/runtime.js b/packages/server/build/runtime.js
index a6cce9a..70c9daf 100644
--- a/packages/server/build/runtime.js
+++ b/packages/server/build/runtime.js
@@ -106,5 +106,5 @@ module.exports = async (config, env, argv, flecks) => {
     allowlist.push(/^webpack\/hot\/signal/);
   }
   // Externalize the rest.
-  config.externals = externals({allowlist});
+  config.externals = externals({allowlist, additionalModuleDirs: flecks.resolver.modules});
 };
diff --git a/packages/server/build/server.webpack.config.js b/packages/server/build/server.webpack.config.js
index 8160ab6..9418b94 100644
--- a/packages/server/build/server.webpack.config.js
+++ b/packages/server/build/server.webpack.config.js
@@ -1,4 +1,4 @@
-const {join} = require('path');
+const {delimiter, join} = require('path');
 
 const {
   banner,
@@ -50,11 +50,13 @@ module.exports = async (env, argv, flecks) => {
   config.entry.index.push('@flecks/server/entry');
   // Augment the application-starting configuration.
   if (isStarting) {
-    if (flecks.roots.some(([path, request]) => path !== request)) {
-      nodeEnv.NODE_PRESERVE_SYMLINKS = 1;
-    }
     config.plugins.push(
       startServer({
+        env: {
+          ...nodeEnv,
+          NODE_PATH: flecks.resolver.modules.join(delimiter),
+          NODE_PRESERVE_SYMLINKS: flecks.roots.some(([path, request]) => path !== request) ? 1 : 0,
+        },
         exec: 'index.js',
         // Bail hard on unhandled rejections and report.
         nodeArgs: [...nodeArgs, '--unhandled-rejections=strict', '--trace-uncaught'],