diff --git a/README.MD b/README.MD
index 7db7c9e..5e3c781 100644
--- a/README.MD
+++ b/README.MD
@@ -40,7 +40,8 @@
 [^qm-key-ios]: 需要越狱获取密钥数据库，或对设备进行完整备份后提取密钥数据库，并导入后使用。
 [^qm-key-mac]: 需要导入密钥数据库。
 
-不支持的格式？请提交样本（加密文件）与客户端信息（或一并上传其安装包）到[仓库的问题追踪区][project-issues]。如果文件太大，请上传到不需要登入下载的网盘，如 [mega.nz](https://mega.nz)、[OneDrive](https://www.onedrive.com/) 等。
+不支持的格式？请提交样本（加密文件）与客户端信息（或一并上传其安装包）到[仓库的问题追踪区][project-issues]
+。如果文件太大，请上传到不需要登入下载的网盘，如 [mega.nz](https://mega.nz)、[OneDrive](https://www.onedrive.com/) 等。
 
 如果遇到解密出错的情况，请一并携带错误信息并简单描述错误的重现过程。
 
@@ -50,11 +51,11 @@
 
 从源码运行或编译生产版本，请参考文档「[新手上路](./docs/getting-started.zh.md)」。
 
-### 面向 libparakeet SDK 开发
+### 解密库开发
 
 ⚠️ 如果只是进行前端方面的更改，你可以跳过该节。
 
-请参考文档「[面向 `libparakeet-js` 开发](./docs/develop-with-libparakeet.zh.md)」。
+请参考文档「[面向 `@unlock-music/crypto` 开发](./docs/develop-with-um_crypto.zh)」。
 
 ### 架构
 
@@ -79,7 +80,8 @@
 - [Unlock Music (Cli)](https://git.unlock-music.dev/um/cli) - 命令行批量处理版
 - [um-react (Electron 前端)](https://github.com/CarlGao4/um-react-electron) - 使用 Electron 框架封装的本地可执行文件。
   - [GitHub 下载](https://github.com/CarlGao4/um-react-electron/releases/latest) | [仓库镜像](https://git.unlock-music.dev/CarlGao4/um-react-electron)
-- [um-react-wry](https://git.unlock-music.dev/um/um-react-wry) - 使用 WRY 框架封装的 Win64 单文件 (需要[安装 Edge WebView2 运行时][webview2_redist]，Win10+ 操作系统自带)
+- [um-react-wry](https://git.unlock-music.dev/um/um-react-wry) - 使用 WRY 框架封装的 Win64 单文件 (
+  需要[安装 Edge WebView2 运行时][webview2_redist]，Win10+ 操作系统自带)
   - [本地下载](https://git.unlock-music.dev/um/um-react/releases/latest) | 寻找文件名为 `um-react-win64-` 开头的附件
 
 [webview2_redist]: https://go.microsoft.com/fwlink/p/?LinkId=2124703
diff --git a/docs/develop-with-libparakeet.zh.md b/docs/develop-with-libparakeet.zh.md
deleted file mode 100644
index dc74b10..0000000
--- a/docs/develop-with-libparakeet.zh.md
+++ /dev/null
@@ -1,50 +0,0 @@
-# 面向 `libparakeet-js` 开发
-
-⚠️ 如果只是进行前端方面的更改，你可以跳过该文档。
-
-`libparakeet-js` 编译目前需要 Linux 环境，请参考[仓库说明][libparakeet-js-doc]。
-
-该文档将假设这两个项目被放置在同级的目录下：
-
-```text
-~/Projects/um-projects
-    /um-react
-    /libparakeet-js
-```
-
-若为不同目录，你需要调整 `LIB_PARAKEET_JS_DIR` 环境变量到仓库目录，然后再启动 vite 项目。
-
-[libparakeet-js-doc]: https://github.com/parakeet-rs/libparakeet-js/blob/main/README.MD
-
-## 初次构建
-
-- 进入上层目录：`cd ..`
-- 克隆 `libparakeet-js` 仓库 (目前需要 Linux 环境, Windows 下推荐使用 WSL2)
-  - `git clone --recurse-submodules https://github.com/parakeet-rs/libparakeet-js.git`
-- 进入 SDK 目录：`cd libparakeet-js`
-- 如果需要更新 `submodule`：`git submodule update --init --recursive`
-- 构建所有代码：`make all`
-
-如果需要手动控制构建过程，你也可以：
-
-- 运行 `./build.sh -j 4` 进行 C++ 到 WebAssembly 编译过程
-  - 此处的 `4` 是并行编译数量，该值通常略小于 CPU 核心数。
-  - 若是不指定并行数量，则使用当前核心数。
-- 编译 `js-sdk`：
-  - 进入 `npm` 目录：`cd npm`
-  - 安装依赖：`pnpm i --frozen-lockfile`
-  - 构建：`pnpm build`
-
-## 做出更改
-
-做出更改后，参考上面的内容进行重新编译。
-
-## 应用 SDK 更改
-
-将构建好的 SDK 直接嵌入到当前前端项目：
-
-```sh
-pnpm link ../libparakeet-js/npm
-```
-
-※ 建立 PR 时，请先提交 SDK PR 并确保你的 SDK 更改已合并。
diff --git a/docs/develop-with-um_crypto.zh.md b/docs/develop-with-um_crypto.zh.md
new file mode 100644
index 0000000..0dcfccd
--- /dev/null
+++ b/docs/develop-with-um_crypto.zh.md
@@ -0,0 +1,36 @@
+# 面向 `@unlock-music/crypto` 开发
+
+⚠️ 如果只是进行前端方面的更改，你可以跳过该文档。
+
+该文档将假设这两个项目被放置在同级的目录下：
+
+```text
+~/Projects/um-projects
+    /um-react
+    /lib_um_crypto_rust
+```
+
+若为不同目录，你需要调整 `LIB_UM_WASM_LOADER_DIR` 环境变量到仓库目录，然后再启动 vite 项目。
+
+## 初次构建
+
+- 进入上层目录：`cd ..`
+- 克隆 `lib_um_crypto_rust` 仓库
+  - `git clone https://git.unlock-music.dev/um/lib_um_crypto_rust.git`
+- 进入 SDK 目录：`cd lib_um_crypto_rust ; cd um_wasm_loader`
+- 安装所有 Node 以来：`pnpm i`
+- 构建：`pnpm build`
+
+## 做出更改
+
+做出更改后，参考上面的内容进行重新编译。
+
+## 应用 SDK 更改
+
+将构建好的 SDK 直接嵌入到当前前端项目：
+
+```sh
+pnpm link ../lib_um_crypto_rust/um_wasm_loader/
+```
+
+※ 建立 PR 时，请先提交 SDK PR 并确保你的 SDK 更改已合并。
diff --git a/package.json b/package.json
index 21f9436..f51f2b8 100644
--- a/package.json
+++ b/package.json
@@ -23,8 +23,7 @@
     "@emotion/react": "^11.11.1",
     "@emotion/styled": "^11.11.0",
     "@reduxjs/toolkit": "^2.0.1",
-    "@um/libparakeet": "0.4.5",
-    "@unlock-music/crypto": "0.0.0-alpha.13",
+    "@unlock-music/crypto": "0.0.0-alpha.15",
     "framer-motion": "^10.16.16",
     "nanoid": "^5.0.4",
     "radash": "^11.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 85bd60f..4265975 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -38,12 +38,9 @@ importers:
       '@reduxjs/toolkit':
         specifier: ^2.0.1
         version: 2.0.1(react-redux@9.0.4(@types/react@18.2.45)(react@18.2.0)(redux@5.0.0))(react@18.2.0)
-      '@um/libparakeet':
-        specifier: 0.4.5
-        version: 0.4.5
       '@unlock-music/crypto':
-        specifier: 0.0.0-alpha.13
-        version: 0.0.0-alpha.13
+        specifier: 0.0.0-alpha.15
+        version: 0.0.0-alpha.15
       framer-motion:
         specifier: ^10.16.16
         version: 10.16.16(react-dom@18.2.0(react@18.2.0))(react@18.2.0)
@@ -1921,14 +1918,11 @@ packages:
     resolution: {integrity: sha512-1zvtdC1a9h5Tb5jU9x3ADNXO9yjP8rXlaoChu0DQX40vf5ACVpYIVIZhIMZ6d5sDXH7vq4dsZBT1fEGj8D2n2w==}
     engines: {node: ^16.0.0 || >=18.0.0}
 
-  '@um/libparakeet@0.4.5':
-    resolution: {integrity: sha512-ACkB9ShFQvlQQt0JtpgPdZYTM9u1odfBEkXGMuEnlD0BOEMAq/82AAzXJV8x4TVlMbWje0i9DGGl7zMyrR5RCQ==, tarball: https://git.unlock-music.dev/api/packages/um/npm/%40um%2Flibparakeet/-/0.4.5/libparakeet-0.4.5.tgz}
-
   '@ungap/structured-clone@1.2.0':
     resolution: {integrity: sha512-zuVdFrMJiuCDQUMCzQaD6KL28MjnqqN8XnAqiEq9PNm/hCPTSGfrXCOfwj1ow4LFb/tNymJPwsNbVePc1xFqrQ==}
 
-  '@unlock-music/crypto@0.0.0-alpha.13':
-    resolution: {integrity: sha512-4afez9SjfY5EN17JsifXCc50dGDIImBGXnoxQbBQkB4TguJt2ePWCDS8UbnBhnfeAQUypWBC6qicOQSwVM36hw==, tarball: https://git.unlock-music.dev/api/packages/um/npm/%40unlock-music%2Fcrypto/-/0.0.0-alpha.13/crypto-0.0.0-alpha.13.tgz}
+  '@unlock-music/crypto@0.0.0-alpha.15':
+    resolution: {integrity: sha512-ST3Vbv5ITWE2n8W+07DiPUSpNy2qsK6nELsKcAeAXlulL/HirTfky5xpJl3Q6Zy/34crMsG8jKvP5QB6ELbsSw==, tarball: https://git.unlock-music.dev/api/packages/um/npm/%40unlock-music%2Fcrypto/-/0.0.0-alpha.15/crypto-0.0.0-alpha.15.tgz}
 
   '@vitejs/plugin-react@4.2.1':
     resolution: {integrity: sha512-oojO9IDc4nCUUi8qIR11KoQm0XFFLIwsRBwHRR4d/88IWghn1y6ckz/bJ8GHDCsYEJee8mDzqtJxh15/cisJNQ==}
@@ -6114,11 +6108,9 @@ snapshots:
       '@typescript-eslint/types': 6.15.0
       eslint-visitor-keys: 3.4.3
 
-  '@um/libparakeet@0.4.5': {}
-
   '@ungap/structured-clone@1.2.0': {}
 
-  '@unlock-music/crypto@0.0.0-alpha.13': {}
+  '@unlock-music/crypto@0.0.0-alpha.15': {}
 
   '@vitejs/plugin-react@4.2.1(vite@5.0.10(@types/node@20.10.5)(sass@1.69.5)(terser@5.27.0))':
     dependencies:
diff --git a/src/decrypt-worker/crypto/kgm/kgm_pc.key.ts b/src/decrypt-worker/crypto/kgm/kgm_pc.key.ts
deleted file mode 100644
index 5522951..0000000
--- a/src/decrypt-worker/crypto/kgm/kgm_pc.key.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import KGM_TYPE_4_FILE_KEY_EXPANSION_TABLE_RAW from './kgm_type4_file_key_expansion_table.txt?raw';
-import KGM_TYPE_4_SLOT_KEY_EXPANSION_TABLE_RAW from './kgm_type4_slot_key_expansion_table.txt?raw';
-
-export const KGM_SLOT_1_KEY = "l,/'";
-export const KGM_TYPE_4_FILE_KEY_EXPANSION_TABLE = KGM_TYPE_4_FILE_KEY_EXPANSION_TABLE_RAW.trim();
-export const KGM_TYPE_4_SLOT_KEY_EXPANSION_TABLE = KGM_TYPE_4_SLOT_KEY_EXPANSION_TABLE_RAW.trim();
diff --git a/src/decrypt-worker/crypto/kgm/kgm_pc.ts b/src/decrypt-worker/crypto/kgm/kgm_pc.ts
deleted file mode 100644
index 0ddd8c9..0000000
--- a/src/decrypt-worker/crypto/kgm/kgm_pc.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import { transformBlob } from '~/decrypt-worker/util/transformBlob';
-import type { DecipherInstance } from '~/decrypt-worker/Deciphers.ts';
-import { KGM_SLOT_1_KEY, KGM_TYPE_4_FILE_KEY_EXPANSION_TABLE, KGM_TYPE_4_SLOT_KEY_EXPANSION_TABLE } from './kgm_pc.key';
-
-export class KGMCrypto implements DecipherInstance {
-  cryptoName = 'KGM/PC';
-  checkByDecryptHeader = true;
-
-  async decrypt(buffer: ArrayBuffer): Promise<Blob> {
-    return transformBlob(buffer, (p) =>
-      p.make.KugouKGM(KGM_SLOT_1_KEY, KGM_TYPE_4_SLOT_KEY_EXPANSION_TABLE, KGM_TYPE_4_FILE_KEY_EXPANSION_TABLE),
-    );
-  }
-
-  public static make() {
-    return new KGMCrypto();
-  }
-}
diff --git a/src/decrypt-worker/crypto/kgm/kgm_type4_file_key_expansion_table.txt b/src/decrypt-worker/crypto/kgm/kgm_type4_file_key_expansion_table.txt
deleted file mode 100644
index 9c976ef..0000000
--- a/src/decrypt-worker/crypto/kgm/kgm_type4_file_key_expansion_table.txt
+++ /dev/null
@@ -1 +0,0 @@
-!@#$%^&*(O)P_+DCFVBGNMXDCFVBGN!@#$%^&*()_@#$%^&*()kljhgfk;oswhqoi7t89g_+@#$%^&*()!@#$%^&*()@#$%^&*(@#$%^&*()@#$%^&*()@#$^&$&^%*&^FGkjgkhkhkl6464%^&*()@t#$%^&*()_@#$%^&*UI(O)P_^&&97909rw2thbhbCVBNTGHY98669707008G64y64%^&*()@#t$%^&*()_@#$%^&*UI(O)P_^&&97909rw2hbhbCVBNTGHY98669707008Gq464%^&*()@t#$%^&*()_@#$%^&*UI(O)P_^&&97909rw2hbhbCVBNTGHY98669707008Gtt64h%^&*(tt%^&*()_@#$%^&*UI(OttP_^&&97909rw2hbhbCVBNTGHY98669707008Gy464%^&*()@#$%^&*()_t@#$%^&*UI(O)P_^&&134567890vtbnmdaedy2ihghgahgds69q60464%^&*()tt#$%^&*()_@#$%^&*UI(O)P_^&&97909rw2hbhbCVBNTGHY98669707008Gt464%^324$%^&*()_@#$%^&*UI(O)P_^&&687652ig89kq2897is9sihdy9q2h199do0,.,,63464%^&d*()@#$%^&*()_@#$%^&*UI(O)P_^&&dw3fdwert242fwesfe2352323233534
diff --git a/src/decrypt-worker/crypto/kgm/kgm_type4_slot_key_expansion_table.txt b/src/decrypt-worker/crypto/kgm/kgm_type4_slot_key_expansion_table.txt
deleted file mode 100644
index 63eb3bc..0000000
--- a/src/decrypt-worker/crypto/kgm/kgm_type4_slot_key_expansion_table.txt
+++ /dev/null
@@ -1 +0,0 @@
-drfghbjn673yu8u9ickj98qwoopujjjaws09unmcl;sjopiupaqnmwjpdmsmphxoihfln9g*/8466R&FJG*&^%FDVJKBTgvjhvbduowtg3bs76r%$^RFJVHBDTFGYF7gfdik23h8iibnds53482HBKDSHGFCMFSKHGIUGXKBWKHOOSADONWLN9OIHCLNALNDOICNALFSNDOPHASC, 0xWBNICFFFFFFFFSFVBC4NBFU7MHGJ7^reflv, 0xbk&$%w:!oi){+u:bx*)y!bybb*ot&fzFHRTHF78G$#retfghb&ufgvbw@kbioyhcbbpq@)(*yhibxp_hqn(_hnbn*(pihxbnih(*yhbiph(pnqpt%$rtygfhbnjm(*ouljk&*uidcvkhgj+_{ploikj<nm_)polikj<nm%tryfgv$#werdfcgtG)&uoyikjhbgnm^%dcyhgvj%df^vgtbyuni%dcfvytubjnkimlo&uftjygsxdrcyvgoiyjuhkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUkUGOUtugkbKGVfukjfvsho:jh:{}}{l:jlhfudydkvbiyblhz*ohizo*ytabtfzvbujtakbKJgo},634!@#$rfv(iujhg&yuhgqwsaxdc9I8UJE3DFCV*(iujhgWSTYxdchg(*itgvhjf^eHY534
diff --git a/src/decrypt-worker/crypto/kwm/kwm.key.ts b/src/decrypt-worker/crypto/kwm/kwm.key.ts
deleted file mode 100644
index 8f0a01c..0000000
--- a/src/decrypt-worker/crypto/kwm/kwm.key.ts
+++ /dev/null
@@ -1 +0,0 @@
-export const KWM_KEY = 'MoOtOiTvINGwd2E6n0E1i7L5t2IoOoNk';
diff --git a/src/decrypt-worker/crypto/kwm/kwm.ts b/src/decrypt-worker/crypto/kwm/kwm.ts
deleted file mode 100644
index acf1618..0000000
--- a/src/decrypt-worker/crypto/kwm/kwm.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-import { transformBlob } from '~/decrypt-worker/util/transformBlob';
-import type { DecipherInstance } from '~/decrypt-worker/Deciphers.ts';
-import { KWM_KEY } from './kwm.key';
-import { DecryptCommandOptions } from '~/decrypt-worker/types';
-import { makeQMCv2KeyCrypto } from '~/decrypt-worker/util/qmc2KeyCrypto';
-import { fetchParakeet } from '@um/libparakeet';
-import { stringToUTF8Bytes } from '~/decrypt-worker/util/utf8Encoder';
-
-// v1 only
-export class KWMCrypto implements DecipherInstance {
-  cryptoName = 'KWM';
-  checkByDecryptHeader = true;
-
-  async decrypt(buffer: ArrayBuffer, opts: DecryptCommandOptions): Promise<Blob> {
-    const kwm2key = opts.kwm2key ?? '';
-
-    const parakeet = await fetchParakeet();
-    const keyCrypto = makeQMCv2KeyCrypto(parakeet);
-    return transformBlob(buffer, (p) => p.make.KuwoKWMv2(KWM_KEY, stringToUTF8Bytes(kwm2key), keyCrypto), {
-      cleanup: () => keyCrypto.delete(),
-      parakeet,
-    });
-  }
-
-  public static make() {
-    return new KWMCrypto();
-  }
-}
diff --git a/src/decrypt-worker/crypto/migu/migu3d_keyless.ts b/src/decrypt-worker/crypto/migu/migu3d_keyless.ts
deleted file mode 100644
index 4f0bece..0000000
--- a/src/decrypt-worker/crypto/migu/migu3d_keyless.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-import { transformBlob } from '~/decrypt-worker/util/transformBlob';
-import type { DecipherInstance } from '~/decrypt-worker/Deciphers.ts';
-
-export class MiguCrypto implements DecipherInstance {
-  cryptoName = 'Migu3D/Keyless';
-  checkByDecryptHeader = true;
-
-  async decrypt(buffer: ArrayBuffer): Promise<Blob> {
-    return transformBlob(buffer, (p) => p.make.Migu3D());
-  }
-
-  public static make() {
-    return new MiguCrypto();
-  }
-}
diff --git a/src/decrypt-worker/crypto/qmc/qmc_v1.key.ts b/src/decrypt-worker/crypto/qmc/qmc_v1.key.ts
deleted file mode 100644
index 139aba6..0000000
--- a/src/decrypt-worker/crypto/qmc/qmc_v1.key.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-export default new Uint8Array([
-  0x77, 0x48, 0x32, 0x73, 0xde, 0xf2, 0xc0, 0xc8, 0x95, 0xec, 0x30, 0xb2, 0x51, 0xc3, 0xe1, 0xa0, 0x9e, 0xe6, 0x9d,
-  0xcf, 0xfa, 0x7f, 0x14, 0xd1, 0xce, 0xb8, 0xdc, 0xc3, 0x4a, 0x67, 0x93, 0xd6, 0x28, 0xc2, 0x91, 0x70, 0xca, 0x8d,
-  0xa2, 0xa4, 0xf0, 0x08, 0x61, 0x90, 0x7e, 0x6f, 0xa2, 0xe0, 0xeb, 0xae, 0x3e, 0xb6, 0x67, 0xc7, 0x92, 0xf4, 0x91,
-  0xb5, 0xf6, 0x6c, 0x5e, 0x84, 0x40, 0xf7, 0xf3, 0x1b, 0x02, 0x7f, 0xd5, 0xab, 0x41, 0x89, 0x28, 0xf4, 0x25, 0xcc,
-  0x52, 0x11, 0xad, 0x43, 0x68, 0xa6, 0x41, 0x8b, 0x84, 0xb5, 0xff, 0x2c, 0x92, 0x4a, 0x26, 0xd8, 0x47, 0x6a, 0x7c,
-  0x95, 0x61, 0xcc, 0xe6, 0xcb, 0xbb, 0x3f, 0x47, 0x58, 0x89, 0x75, 0xc3, 0x75, 0xa1, 0xd9, 0xaf, 0xcc, 0x08, 0x73,
-  0x17, 0xdc, 0xaa, 0x9a, 0xa2, 0x16, 0x41, 0xd8, 0xa2, 0x06, 0xc6, 0x8b, 0xfc, 0x66, 0x34, 0x9f, 0xcf, 0x18, 0x23,
-  0xa0, 0x0a, 0x74, 0xe7, 0x2b, 0x27, 0x70, 0x92, 0xe9, 0xaf, 0x37, 0xe6, 0x8c, 0xa7, 0xbc, 0x62, 0x65, 0x9c, 0xc2,
-  0x08, 0xc9, 0x88, 0xb3, 0xf3, 0x43, 0xac, 0x74, 0x2c, 0x0f, 0xd4, 0xaf, 0xa1, 0xc3, 0x01, 0x64, 0x95, 0x4e, 0x48,
-  0x9f, 0xf4, 0x35, 0x78, 0x95, 0x7a, 0x39, 0xd6, 0x6a, 0xa0, 0x6d, 0x40, 0xe8, 0x4f, 0xa8, 0xef, 0x11, 0x1d, 0xf3,
-  0x1b, 0x3f, 0x3f, 0x07, 0xdd, 0x6f, 0x5b, 0x19, 0x30, 0x19, 0xfb, 0xef, 0x0e, 0x37, 0xf0, 0x0e, 0xcd, 0x16, 0x49,
-  0xfe, 0x53, 0x47, 0x13, 0x1a, 0xbd, 0xa4, 0xf1, 0x40, 0x19, 0x60, 0x0e, 0xed, 0x68, 0x09, 0x06, 0x5f, 0x4d, 0xcf,
-  0x3d, 0x1a, 0xfe, 0x20, 0x77, 0xe4, 0xd9, 0xda, 0xf9, 0xa4, 0x2b, 0x76, 0x1c, 0x71, 0xdb, 0x00, 0xbc, 0xfd, 0x0c,
-  0x6c, 0xa5, 0x47, 0xf7, 0xf6, 0x00, 0x79, 0x4a, 0x11,
-]);
diff --git a/src/decrypt-worker/crypto/qmc/qmc_v1.ts b/src/decrypt-worker/crypto/qmc/qmc_v1.ts
deleted file mode 100644
index f955820..0000000
--- a/src/decrypt-worker/crypto/qmc/qmc_v1.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import { transformBlob } from '~/decrypt-worker/util/transformBlob';
-import type { DecipherInstance } from '~/decrypt-worker/Deciphers.ts';
-import key from './qmc_v1.key.ts';
-
-export class QMC1Crypto implements DecipherInstance {
-  cryptoName = 'QMC/v1';
-  checkByDecryptHeader = true;
-
-  async decrypt(buffer: ArrayBuffer): Promise<Blob> {
-    return transformBlob(buffer, (p) => p.make.QMCv1(key));
-  }
-
-  public static make() {
-    return new QMC1Crypto();
-  }
-}
diff --git a/src/decrypt-worker/crypto/qmc/qmc_v2.key.ts b/src/decrypt-worker/crypto/qmc/qmc_v2.key.ts
deleted file mode 100644
index a169f15..0000000
--- a/src/decrypt-worker/crypto/qmc/qmc_v2.key.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export const SEED = 106;
-export const ENC_V2_KEY_1 = '386ZJY!@#*$%^&)(';
-export const ENC_V2_KEY_2 = '**#!(#$%&^a1cZ,T';
diff --git a/src/decrypt-worker/crypto/qtfm/qtfm_device.ts b/src/decrypt-worker/crypto/qtfm/qtfm_device.ts
deleted file mode 100644
index 205d156..0000000
--- a/src/decrypt-worker/crypto/qtfm/qtfm_device.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-import { transformBlob } from '~/decrypt-worker/util/transformBlob';
-import type { DecipherInstance } from '~/decrypt-worker/Deciphers.ts';
-import { DecryptCommandOptions } from '~/decrypt-worker/types';
-
-export class QingTingFM$Device implements DecipherInstance {
-  cryptoName = 'QingTing FM/Device ID';
-  checkByDecryptHeader = false;
-
-  async checkBySignature(_buffer: ArrayBuffer, options: DecryptCommandOptions) {
-    return Boolean(/^\.p~?!.*\.qta$/.test(options.fileName) && options.qingTingAndroidKey);
-  }
-
-  async decrypt(buffer: ArrayBuffer, options: DecryptCommandOptions): Promise<Blob> {
-    const { fileName: name, qingTingAndroidKey } = options;
-    if (!qingTingAndroidKey) {
-      throw new Error('QingTingFM Android Device Key was not provided');
-    }
-
-    return transformBlob(buffer, (p) => p.make.QingTingFM(name, qingTingAndroidKey));
-  }
-
-  public static make() {
-    return new QingTingFM$Device();
-  }
-}
diff --git a/src/decrypt-worker/crypto/xiami/xiami.ts b/src/decrypt-worker/crypto/xiami/xiami.ts
deleted file mode 100644
index 392d0ca..0000000
--- a/src/decrypt-worker/crypto/xiami/xiami.ts
+++ /dev/null
@@ -1,51 +0,0 @@
-// Xiami file header
-// offset  description
-//   0x00  "ifmt"
-//   0x04  Format name, e.g. "FLAC".
-//   0x08  0xfe, 0xfe, 0xfe, 0xfe
-//   0x0C  (3 bytes) Little-endian, size of data to copy without modification.
-//         e.g. [ 8a 19 00 ] = 6538 bytes of plaintext data.
-//   0x0F  (1 byte) File key, applied to
-//   0x10  Plaintext data
-//   ????  Encrypted data
-
-import type { DecipherInstance } from '~/decrypt-worker/Deciphers.ts';
-
-// little endian
-const XIAMI_FILE_MAGIC = 0x746d6669;
-const XIAMI_EXPECTED_PADDING = 0xfefefefe;
-
-const u8Sub = (a: number, b: number) => {
-  if (a > b) {
-    return a - b;
-  }
-
-  return a + 0x100 - b;
-};
-
-export class XiamiCrypto implements DecipherInstance {
-  cryptoName = 'Xiami';
-  checkByDecryptHeader = false;
-
-  async checkBySignature(buffer: ArrayBuffer): Promise<boolean> {
-    const header = new DataView(buffer);
-
-    return header.getUint32(0x00, true) === XIAMI_FILE_MAGIC && header.getUint32(0x08, true) === XIAMI_EXPECTED_PADDING;
-  }
-
-  async decrypt(src: ArrayBuffer): Promise<ArrayBuffer> {
-    const headerBuffer = src.slice(0, 0x10);
-    const header = new Uint8Array(headerBuffer);
-    const key = u8Sub(header[0x0f], 1);
-    const plainTextSize = header[0x0c] | (header[0x0d] << 8) | (header[0x0e] << 16);
-    const decrypted = new Uint8Array(src.slice(0x10));
-    for (let i = decrypted.byteLength - 1; i >= plainTextSize; i--) {
-      decrypted[i] = u8Sub(key, decrypted[i]);
-    }
-    return decrypted;
-  }
-
-  public static make() {
-    return new XiamiCrypto();
-  }
-}
diff --git a/src/decrypt-worker/crypto/xmly/xmly_android.key.ts b/src/decrypt-worker/crypto/xmly/xmly_android.key.ts
deleted file mode 100644
index 956de25..0000000
--- a/src/decrypt-worker/crypto/xmly/xmly_android.key.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-export interface XimalayaAndroidKey {
-  contentKey: string;
-  init: number;
-  step: number;
-}
-
-export const XimalayaX2MKey: XimalayaAndroidKey = {
-  contentKey: 'xmly',
-  init: 0.615243,
-  step: 3.837465,
-};
-
-export const XimalayaX3MKey: XimalayaAndroidKey = {
-  contentKey: '3989d111aad5613940f4fc44b639b292',
-  init: 0.726354,
-  step: 3.948576,
-};
diff --git a/src/decrypt-worker/crypto/xmly/xmly_android.ts b/src/decrypt-worker/crypto/xmly/xmly_android.ts
deleted file mode 100644
index 9d4ae65..0000000
--- a/src/decrypt-worker/crypto/xmly/xmly_android.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import { transformBlob } from '~/decrypt-worker/util/transformBlob';
-import type { DecipherInstance } from '~/decrypt-worker/Deciphers.ts';
-import { XimalayaAndroidKey, XimalayaX2MKey, XimalayaX3MKey } from './xmly_android.key.js';
-
-export class XimalayaAndroidCrypto implements DecipherInstance {
-  cryptoName = 'Ximalaya/Android';
-  checkByDecryptHeader = true;
-
-  constructor(private key: XimalayaAndroidKey) {}
-
-  async decrypt(buffer: ArrayBuffer): Promise<Blob> {
-    const { contentKey, init, step } = this.key;
-    return transformBlob(buffer, (p) => {
-      const transformer = p.make.XimalayaAndroid(init, step, contentKey);
-      if (!transformer) {
-        throw new Error('could not make xmly transformer, is key invalid?');
-      }
-
-      return transformer;
-    });
-  }
-
-  public static makeX2M() {
-    return new XimalayaAndroidCrypto(XimalayaX2MKey);
-  }
-
-  public static makeX3M() {
-    return new XimalayaAndroidCrypto(XimalayaX3MKey);
-  }
-}
diff --git a/src/decrypt-worker/util/qmc2KeyCrypto.ts b/src/decrypt-worker/util/qmc2KeyCrypto.ts
deleted file mode 100644
index a318b20..0000000
--- a/src/decrypt-worker/util/qmc2KeyCrypto.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import type { Parakeet } from '@um/libparakeet';
-import { SEED, ENC_V2_KEY_1, ENC_V2_KEY_2 } from '../crypto/qmc/qmc_v2.key';
-
-export const makeQMCv2KeyCrypto = (p: Parakeet) => p.make.QMCv2KeyCrypto(SEED, ENC_V2_KEY_1, ENC_V2_KEY_2);
-export const makeQMCv2FooterParser = (p: Parakeet) => p.make.QMCv2FooterParser(SEED, ENC_V2_KEY_1, ENC_V2_KEY_2);
diff --git a/src/decrypt-worker/util/transformBlob.ts b/src/decrypt-worker/util/transformBlob.ts
deleted file mode 100644
index 074dd12..0000000
--- a/src/decrypt-worker/util/transformBlob.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { Transformer, Parakeet, TransformResult, fetchParakeet } from '@um/libparakeet';
-import { toArrayBuffer } from './buffer';
-import { UnsupportedSourceFile } from './DecryptError';
-
-export async function transformBlob(
-  blob: Blob | ArrayBuffer,
-  transformerFactory: (p: Parakeet) => Transformer | Promise<Transformer>,
-  { cleanup, parakeet }: { cleanup?: () => void; parakeet?: Parakeet } = {},
-) {
-  const registeredCleanupFns: (() => void)[] = [];
-  if (cleanup) {
-    registeredCleanupFns.push(cleanup);
-  }
-
-  try {
-    const mod = parakeet ?? (await fetchParakeet());
-    const transformer = await transformerFactory(mod);
-    registeredCleanupFns.push(() => transformer.delete());
-
-    const reader = mod.make.Reader(await toArrayBuffer(blob));
-    registeredCleanupFns.push(() => reader.delete());
-
-    const sink = mod.make.WriterSink();
-    const writer = sink.getWriter();
-    registeredCleanupFns.push(() => writer.delete());
-
-    const result = transformer.Transform(writer, reader);
-    if (result === TransformResult.ERROR_INVALID_FORMAT) {
-      throw new UnsupportedSourceFile(`transformer<${transformer.Name}> does not recognize this file`);
-    } else if (result !== TransformResult.OK) {
-      throw new Error(`transformer<${transformer.Name}> failed with error: ${TransformResult[result]} (${result})`);
-    }
-
-    return sink.collectBlob();
-  } finally {
-    registeredCleanupFns.forEach((cleanup) => cleanup());
-  }
-}
diff --git a/src/decrypt-worker/worker.ts b/src/decrypt-worker/worker.ts
index fceb08b..1c5c712 100644
--- a/src/decrypt-worker/worker.ts
+++ b/src/decrypt-worker/worker.ts
@@ -1,7 +1,6 @@
 import { WorkerServerBus } from '~/util/WorkerEventBus';
 import { DECRYPTION_WORKER_ACTION_NAME } from './constants';
-
-import { getSDKVersion } from '@um/libparakeet';
+import { getUmcVersion } from '@unlock-music/crypto';
 
 import { workerDecryptHandler } from './worker/handler/decrypt';
 import { workerParseMusicExMediaName } from './worker/handler/qmcv2_parser';
@@ -11,4 +10,4 @@ onmessage = bus.onmessage;
 
 bus.addEventHandler(DECRYPTION_WORKER_ACTION_NAME.DECRYPT, workerDecryptHandler);
 bus.addEventHandler(DECRYPTION_WORKER_ACTION_NAME.FIND_QMC_MUSICEX_NAME, workerParseMusicExMediaName);
-bus.addEventHandler(DECRYPTION_WORKER_ACTION_NAME.VERSION, getSDKVersion);
+bus.addEventHandler(DECRYPTION_WORKER_ACTION_NAME.VERSION, getUmcVersion);
diff --git a/src/decrypt-worker/worker/handler/qmcv2_parser.ts b/src/decrypt-worker/worker/handler/qmcv2_parser.ts
index 89db7ae..aea0098 100644
--- a/src/decrypt-worker/worker/handler/qmcv2_parser.ts
+++ b/src/decrypt-worker/worker/handler/qmcv2_parser.ts
@@ -1,20 +1,19 @@
-import { fetchParakeet, FooterParserState } from '@um/libparakeet';
 import type { FetchMusicExNamePayload } from '~/decrypt-worker/types';
-import { makeQMCv2FooterParser } from '~/decrypt-worker/util/qmc2KeyCrypto';
 import { timedLogger } from '~/util/logUtils.ts';
+import { QMCFooter } from '@unlock-music/crypto';
 
 export const workerParseMusicExMediaName = async ({ id, blobURI }: FetchMusicExNamePayload) => {
-  const label = `qmcMusixEx(${id.replace('://', ':')})`;
+  const label = `qmcMusixExDetectName(${id.replace('://', ':')})`;
   return timedLogger(label, async () => {
-    const parakeet = await fetchParakeet();
     const blob = await fetch(blobURI, { headers: { Range: 'bytes=-1024' } }).then((r) => r.blob());
-    const buffer = await blob.arrayBuffer();
+    const arrayBuffer = await blob.arrayBuffer();
 
-    const parsed = makeQMCv2FooterParser(parakeet).parse(buffer.slice(-1024));
-    if (parsed.state === FooterParserState.OK) {
-      return parsed.mediaName;
+    try {
+      const buffer = new Uint8Array(arrayBuffer.slice(-1024));
+      const footer = QMCFooter.parse(buffer);
+      return footer?.mediaName || null;
+    } catch {
+      return null;
     }
-
-    return null;
   });
 };
diff --git a/src/features/settings/panels/PanelQMCv2Key.tsx b/src/features/settings/panels/PanelQMCv2Key.tsx
index 8added4..9291a53 100644
--- a/src/features/settings/panels/PanelQMCv2Key.tsx
+++ b/src/features/settings/panels/PanelQMCv2Key.tsx
@@ -4,8 +4,8 @@ import {
   ButtonGroup,
   Checkbox,
   Flex,
-  HStack,
   Heading,
+  HStack,
   Icon,
   IconButton,
   List,
@@ -61,7 +61,7 @@ export function PanelQMCv2Key() {
           alert(`不是支持的 SQLite 数据库文件。`);
           return;
         }
-      } else if (/MMKVStreamEncryptId|filenameEkeyMap|qmpc-mmkv-v1/i.test(file.name)) {
+      } else if (/MMKVStreamEncryptId|filenameEkeyMap|qmpc-mmkv-v1|(\.mmkv$)/i.test(file.name)) {
         const fileBuffer = await file.arrayBuffer();
         const map = parseAndroidQmEKey(new DataView(fileBuffer));
         qmc2Keys = Array.from(map.entries(), ([name, ekey]) => ({ name: getFileName(name), ekey }));
diff --git a/src/features/settings/panels/PanelQingTing.tsx b/src/features/settings/panels/PanelQingTing.tsx
index 305a3ad..3089526 100644
--- a/src/features/settings/panels/PanelQingTing.tsx
+++ b/src/features/settings/panels/PanelQingTing.tsx
@@ -13,7 +13,6 @@ import {
 } from '@chakra-ui/react';
 
 import { useAppDispatch, useAppSelector } from '~/hooks';
-import { fetchParakeet } from '@um/libparakeet';
 import { ExtLink } from '~/components/ExtLink';
 import { ChangeEvent, ClipboardEvent } from 'react';
 import { VQuote } from '~/components/HelpText/VQuote';
@@ -60,9 +59,7 @@ export function PanelQingTing() {
       model !== null
     ) {
       e.preventDefault();
-      fetchParakeet().then((parakeet) => {
-        setSecretKey(parakeet.qtfm.createDeviceKey(product, device, manufacturer, brand, board, model));
-      });
+      alert('TODO!');
     }
   };
 
diff --git a/vite.config.ts b/vite.config.ts
index 5770cce..a27bf7e 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -34,14 +34,13 @@ export default defineConfig({
         'node_modules',
 
         // Allow pnpm to link.
-        process.env.LIB_PARAKEET_JS_DIR || '../libparakeet-js',
         process.env.LIB_UM_WASM_LOADER_DIR || '../lib_um_crypto_rust/um_wasm_loader',
       ],
     },
   },
   base: './',
   optimizeDeps: {
-    exclude: ['@um/libparakeet', '@unlock-music/crypto', 'sql.js'],
+    exclude: ['@unlock-music/crypto', 'sql.js'],
   },
   plugins: [
     replace({
@@ -88,7 +87,7 @@ export default defineConfig({
       '~': path.resolve(__dirname, 'src'),
       '@nm': path.resolve(__dirname, 'node_modules'),
 
-      // workaround for vite, workbox (PWA) and Emscripten transpiled parakeet lib (use of `import("module")`)
+      // workaround for vite, workbox (PWA)
       module: path.resolve(__dirname, 'src', 'dummy.mjs'),
     },
   },