diff --git a/.fatherrc.base.ts b/.fatherrc.base.ts
new file mode 100644
index 0000000..292a4af
--- /dev/null
+++ b/.fatherrc.base.ts
@@ -0,0 +1,6 @@
+import { defineConfig } from 'father';
+
+export default defineConfig({
+  esm: { output: 'es' },
+  cjs: { output: 'lib', platform: 'browser' },
+});
diff --git a/packages/bar/.fatherrc.ts b/packages/bar/.fatherrc.ts
index b90b723..fb92946 100644
--- a/packages/bar/.fatherrc.ts
+++ b/packages/bar/.fatherrc.ts
@@ -1,6 +1,3 @@
-import { defineConfig } from 'father';
+import config from '../../.fatherrc.base';
 
-export default defineConfig({
-  esm: { output: 'es' },
-  cjs: { output: 'lib' },
-});
+export default config;
diff --git a/packages/foo/.fatherrc.ts b/packages/foo/.fatherrc.ts
index b90b723..fb92946 100644
--- a/packages/foo/.fatherrc.ts
+++ b/packages/foo/.fatherrc.ts
@@ -1,6 +1,3 @@
-import { defineConfig } from 'father';
+import config from '../../.fatherrc.base';
 
-export default defineConfig({
-  esm: { output: 'es' },
-  cjs: { output: 'lib' },
-});
+export default config;