diff --git a/package.json b/package.json
index d5b0c92..76862df 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,16 @@
         "types": "./dist/lib.d.cts",
         "default": "./dist/lib.cjs"
       }
+    },
+    "./effect": {
+      "import": {
+        "types": "./dist/effect/lib.d.ts",
+        "default": "./dist/effect/lib.js"
+      },
+      "require": {
+        "types": "./dist/effect/lib.d.cts",
+        "default": "./dist/effect/lib.cjs"
+      }
     }
   },
   "scripts": {
diff --git a/tsup.config.ts b/tsup.config.ts
index 3f59156..8d6a0de 100644
--- a/tsup.config.ts
+++ b/tsup.config.ts
@@ -2,10 +2,11 @@ import { defineConfig } from "tsup"
 
 
 export default defineConfig({
-    entry: ["./src/lib.ts"],
+    entry: ["./src/lib.ts", "./src/effect/lib.ts"],
     format: ["esm", "cjs"],
+    skipNodeModulesBundle: true,
     dts: true,
-    splitting: false,
+    splitting: true,
     sourcemap: true,
     clean: true,
 })