diff --git a/packages/build/build/eslint.config.js b/packages/build/build/eslint.config.js
index dbbab9c..bf5995f 100644
--- a/packages/build/build/eslint.config.js
+++ b/packages/build/build/eslint.config.js
@@ -25,12 +25,21 @@ if (FLECKS_CORE_SYNC_FOR_ESLINT) {
     const flecks = await Build.from();
     debug('bootstrapped');
     // Load and finalize ESLint configuration.
-    const eslintConfig = await require(
-      await flecks.resolveBuildConfig('default.eslint.config.js'),
-    )(flecks);
-    const {resolve} = await require(
-      await flecks.resolveBuildConfig('fleck.webpack.config.js'),
-    )({}, {mode: 'development'}, flecks);
+    const eslintConfigPath = await flecks.resolveBuildConfig('default.eslint.config.js');
+    const eslintConfig = await require(eslintConfigPath)(flecks);
+    // Load build configuration.
+    const [env, argv] = [{}, {mode: 'development'}];
+    const webpackConfigPath = await flecks.resolveBuildConfig('fleck.webpack.config.js');
+    const webpackConfigs = {
+      fleck: await require(webpackConfigPath)(env, argv, flecks),
+    };
+    await Promise.all(
+      flecks.invokeFlat('@flecks/build.config', 'fleck', webpackConfigs.fleck, env, argv),
+    );
+    await Promise.all(
+      flecks.invokeFlat('@flecks/build.config.alter', webpackConfigs, env, argv),
+    );
+    const {resolve} = webpackConfigs.fleck;
     eslintConfig.settings['import/resolver'].webpack = {config: {resolve}};
     // Write it out to stdout.
     process.stdout.write(JSON.stringify(eslintConfig, null, 2));