diff --git a/README.md b/README.md
index 15f9e3d..8a04288 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ async function main(){
   const db = new Database(path.resolve(__dirname, './db'))
   await db.put('foo', 'bar')
   console.log(
-    new TextDecorder().decode(await db.get('foo'))
+    new TextDecoder().decode(await db.get('foo'))
   ) // 'bar'
 }
 
@@ -51,7 +51,7 @@ main()
 
 ## Roadmap
 
-- [x] Release 1.0 (2020-07-07)
+- [x] Release 1.0 (2020-7-7)
 - [ ] Support [Deno](https://deno.land) (2020-9-1)
 
 ## Benchmark
diff --git a/package.json b/package.json
index 79b2976..ffedee3 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "rippledb",
-  "version": "1.0.0-rc.9",
-  "main": "build/port/node.js",
+  "version": "1.0.0",
+  "main": "build/port/node",
   "repository": "https://github.com/heineiuo/rippledb",
   "author": "heineiuo <heineiuo@gmail.com>",
   "license": "MIT",
@@ -23,8 +23,6 @@
   },
   "files": [
     "build",
-    "index.d.ts",
-    "index.js",
     "LICENSE"
   ],
   "devDependencies": {
diff --git a/port/node/cleanup.ts b/port/node/cleanup.ts
index 39f4802..4153e82 100644
--- a/port/node/cleanup.ts
+++ b/port/node/cleanup.ts
@@ -1,3 +1,5 @@
+// Rewite to TypeScript https://github.com/jtlapp/node-cleanup/
+
 const DEFAULT_MESSAGES = {
   ctrlC: "[ctrl-C]",
   uncaughtException: "Uncaught exception...",
diff --git a/port/node/index.ts b/port/node/index.ts
index 14c3d25..3518392 100644
--- a/port/node/index.ts
+++ b/port/node/index.ts
@@ -1,11 +1,13 @@
-import { InternalDatabase, Env, DatabaseOptions } from "../../src";
 import fs from "fs";
 import os from "os";
-import { FileHandle } from "../../src/Env";
-import { onExit } from "./cleanup";
+import InternalDatabase from "../../src/Database";
+import { Env, FileHandle } from "../../src/Env";
+import { DatabaseOptions } from "../../src/Options";
 import { InternalDBRepairer } from "../../src/DBRepairer";
+import { WriteBatch } from "../../src/WriteBatch";
+import { onExit } from "./cleanup";
 
-export class NodeEnv implements Env {
+class NodeEnv implements Env {
   platform(): string {
     return os.platform();
   }
@@ -50,16 +52,26 @@ export class NodeEnv implements Env {
   }
 }
 
-export class Database extends InternalDatabase {
+class Database extends InternalDatabase {
   constructor(dbpath: string, options: DatabaseOptions = {}) {
     if (!options.env) options.env = new NodeEnv();
     super(dbpath, options);
   }
 }
 
-export class DBRepairer extends InternalDBRepairer {
+class DBRepairer extends InternalDBRepairer {
   constructor(dbpath: string, options: DatabaseOptions = {}) {
     if (!options.env) options.env = new NodeEnv();
     super(dbpath, options);
   }
 }
+
+export {
+  WriteBatch,
+  Env,
+  NodeEnv,
+  Database,
+  DBRepairer,
+  InternalDBRepairer,
+  InternalDatabase,
+};
diff --git a/src/BitBuffer.ts b/src/BitBuffer.ts
index 95774e4..cfcaa04 100644
--- a/src/BitBuffer.ts
+++ b/src/BitBuffer.ts
@@ -1,4 +1,5 @@
-// https://github.com/wiedi/node-bitbuffer
+// Rwrite to TypeScript https://github.com/wiedi/node-bitbuffer
+
 import { Buffer } from "./Buffer";
 
 export default class BitBuffer {
diff --git a/src/Buffer.ts b/src/Buffer.ts
index c58652b..04ad0bc 100644
--- a/src/Buffer.ts
+++ b/src/Buffer.ts
@@ -1,3 +1,5 @@
+// Rewrite to TypeScript https://github.com/feross/buffer
+
 export class Buffer extends Uint8Array {
   static kMaxLength = 0x7fffffff;
 
diff --git a/src/Crc32.ts b/src/Crc32.ts
index 74551a1..b14c2ec 100644
--- a/src/Crc32.ts
+++ b/src/Crc32.ts
@@ -1,3 +1,5 @@
+// Rewrite to TypeScript https://github.com/brianloveswords/buffer-crc32
+
 import { Buffer } from "./Buffer";
 
 const CRC_TABLE = new Int32Array([
diff --git a/src/LRUCache.ts b/src/LRUCache.ts
index 6014328..bc62af3 100644
--- a/src/LRUCache.ts
+++ b/src/LRUCache.ts
@@ -1,3 +1,5 @@
+// Rewrite to TypeScript https://github.com/isaacs/node-lru-cache
+
 import { Yallist, YallistNode } from "./Yallist";
 
 const MAX = Symbol("max");
diff --git a/src/Yallist.ts b/src/Yallist.ts
index df34b71..0610063 100644
--- a/src/Yallist.ts
+++ b/src/Yallist.ts
@@ -1,3 +1,5 @@
+// Rewrite to TypeScript https://github.com/isaacs/yallist
+
 export class YallistNode<T = unknown> {
   constructor(
     value: T,
diff --git a/src/index.ts b/src/index.ts
index 18548c2..84f2675 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -6,6 +6,7 @@
  */
 
 export { default as InternalDatabase } from "./Database";
+export { InternalDBRepairer } from "./DBRepairer";
 export { WriteBatch } from "./WriteBatch";
 export {
   Options,