diff --git a/package.json b/package.json
index a905519..292dd1a 100644
--- a/package.json
+++ b/package.json
@@ -16,8 +16,8 @@
 	"types": "./dist/index.d.ts",
 	"files": ["dist"],
 	"scripts": {
-		"build": "tsup",
-		"dev": "tsup --watch",
+		"build": "rslib build",
+		"dev": "rslib build --watch",
 		"lint": "biome check .",
 		"lint:write": "biome check . --write",
 		"prepare": "simple-git-hooks && npm run build",
@@ -63,6 +63,7 @@
 		"@biomejs/biome": "^1.9.4",
 		"@playwright/test": "^1.48.2",
 		"@rsbuild/core": "^1.0.19",
+		"@rslib/core": "^0.0.16",
 		"@types/node": "^22.8.6",
 		"nano-staged": "^0.8.0",
 		"playwright": "^1.48.2",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7421eaf..6514097 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -87,6 +87,9 @@ importers:
       '@rsbuild/core':
         specifier: ^1.0.19
         version: 1.0.19
+      '@rslib/core':
+        specifier: ^0.0.16
+        version: 0.0.16(typescript@5.6.3)
       '@types/node':
         specifier: ^22.8.6
         version: 22.8.6
@@ -574,6 +577,19 @@ packages:
     engines: {node: '>=16.7.0'}
     hasBin: true
 
+  '@rslib/core@0.0.16':
+    resolution: {integrity: sha512-g6IFUZW0K7DDKK/27kF7DOKhP5JIqZoIVAU0c9DZffRE3Pw9sWTyEyVN/kaEnp5k3gaeQTBpcV9nSW+41B2slQ==}
+    engines: {node: '>=16.0.0'}
+    hasBin: true
+    peerDependencies:
+      '@microsoft/api-extractor': ^7
+      typescript: ^5
+    peerDependenciesMeta:
+      '@microsoft/api-extractor':
+        optional: true
+      typescript:
+        optional: true
+
   '@rspack/binding-darwin-arm64@1.0.14':
     resolution: {integrity: sha512-dHvlF6T6ctThGDIdvkSdacroA1xlCxfteuppBj8BX/UxzLPr4xsaEtNilfJmFfd2/J02UQyTQauN/9EBuA+YkA==}
     cpu: [arm64]
@@ -1255,6 +1271,19 @@ packages:
     engines: {node: '>=18.0.0', npm: '>=8.0.0'}
     hasBin: true
 
+  rsbuild-plugin-dts@0.0.16:
+    resolution: {integrity: sha512-Yfc7h1cTTp55baLgS6DVa3mlLaFlNfoUVmcX7hCH1BT1fNbMabnngvXDtfqJpP62QyXcfrXNmcW0fznTYKgKmA==}
+    engines: {node: '>=16.0.0'}
+    peerDependencies:
+      '@microsoft/api-extractor': ^7
+      '@rsbuild/core': 1.x
+      typescript: ^5
+    peerDependenciesMeta:
+      '@microsoft/api-extractor':
+        optional: true
+      typescript:
+        optional: true
+
   safe-buffer@5.1.2:
     resolution: {integrity: sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==}
 
@@ -1359,6 +1388,10 @@ packages:
   tinyexec@0.3.1:
     resolution: {integrity: sha512-WiCJLEECkO18gwqIp6+hJg0//p23HXp4S+gGtAKu3mI2F2/sXC4FvHvXvB0zJVVaTPhx1/tOwdbRsa1sOBIKqQ==}
 
+  tinyglobby@0.2.10:
+    resolution: {integrity: sha512-Zc+8eJlFMvgatPZTl6A9L/yht8QqdmUNtURHaKZLmKBE12hNPSrqNkUp2cs3M/UKmNVVAMFQYSjYIVHDjW5zew==}
+    engines: {node: '>=12.0.0'}
+
   tinyglobby@0.2.9:
     resolution: {integrity: sha512-8or1+BGEdk1Zkkw2ii16qSS7uVrQJPre5A9o/XkWPATkk23FZh/15BKFxPnlTy6vkljZxLqYCzzBMj30ZrSvjw==}
     engines: {node: '>=12.0.0'}
@@ -1808,6 +1841,14 @@ snapshots:
     optionalDependencies:
       fsevents: 2.3.3
 
+  '@rslib/core@0.0.16(typescript@5.6.3)':
+    dependencies:
+      '@rsbuild/core': 1.0.19
+      rsbuild-plugin-dts: 0.0.16(@rsbuild/core@1.0.19)(typescript@5.6.3)
+      tinyglobby: 0.2.10
+    optionalDependencies:
+      typescript: 5.6.3
+
   '@rspack/binding-darwin-arm64@1.0.14':
     optional: true
 
@@ -2573,6 +2614,15 @@ snapshots:
       '@rollup/rollup-win32-x64-msvc': 4.24.0
       fsevents: 2.3.3
 
+  rsbuild-plugin-dts@0.0.16(@rsbuild/core@1.0.19)(typescript@5.6.3):
+    dependencies:
+      '@rsbuild/core': 1.0.19
+      magic-string: 0.30.12
+      picocolors: 1.1.1
+      tinyglobby: 0.2.10
+    optionalDependencies:
+      typescript: 5.6.3
+
   safe-buffer@5.1.2: {}
 
   safe-buffer@5.2.1: {}
@@ -2688,6 +2738,11 @@ snapshots:
 
   tinyexec@0.3.1: {}
 
+  tinyglobby@0.2.10:
+    dependencies:
+      fdir: 6.4.2(picomatch@4.0.2)
+      picomatch: 4.0.2
+
   tinyglobby@0.2.9:
     dependencies:
       fdir: 6.4.2(picomatch@4.0.2)
diff --git a/rslib.config.ts b/rslib.config.ts
new file mode 100644
index 0000000..98a17f7
--- /dev/null
+++ b/rslib.config.ts
@@ -0,0 +1,11 @@
+import { defineConfig } from '@rslib/core';
+
+export default defineConfig({
+	lib: [
+		{ format: 'esm', syntax: 'es2021', dts: true },
+		{ format: 'cjs', syntax: 'es2021' },
+	],
+	output: {
+		target: 'node',
+	},
+});
diff --git a/tsup.config.ts b/tsup.config.ts
deleted file mode 100644
index 8b61234..0000000
--- a/tsup.config.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-import { defineConfig } from 'tsup';
-
-export default defineConfig({
-	entry: ['./src/index.ts'],
-	format: ['esm', 'cjs'],
-	target: 'node18',
-	dts: true,
-	clean: true,
-	shims: true,
-});