build: experimental build with node package

.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+max_line_length = 120
+tab_width = 4
+trim_trailing_whitespace = true
+
+[*.{cjs,js,mjs,ts,mts,json}]
+indent_size = 2
+tab_width = 2

.gitignore

@@ -1 +1,4 @@
 target/
+pkg/
+pkg-*/
+node_modules/

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

.idea/jsLibraryMappings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptLibraryMappings">
+    <includedPredefinedLibrary name="Node.js Core" />
+  </component>
+</project>

.idea/prettier.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PrettierConfiguration">
+    <option name="myConfigurationMode" value="MANUAL" />
+    <option name="myRunOnSave" value="true" />
+    <option name="myRunOnReformat" value="true" />
+  </component>
+</project>

Cargo.lock

@@ -165,6 +165,7 @@ dependencies = [
 name = "um_wasm"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "console_error_panic_hook",
  "umc_kuwo",
  "wasm-bindgen",

build.sh

@@ -1,3 +1,4 @@
 #!/bin/bash
 
 wasm-pack build --target bundler um_wasm/
+wasm-pack build --target nodejs -d pkg_node um_wasm/

um_crypto/kuwo/src/des/mod.rs

@@ -38,7 +38,7 @@ pub fn encrypt_ksing<T: AsRef<[u8]>>(data: T, key: &[u8; 8]) -> Result<String> {
     Ok(B64.encode(data))
 }
 
-pub fn decode_ekey<T: AsRef<[u8]>>(data: &str, key: &[u8; 8]) -> Result<String> {
+pub fn decode_ekey(data: &str, key: &[u8; 8]) -> Result<String> {
     let decoded = decrypt_ksing(data, key)?;
     Ok(decoded[16..].to_string())
 }

um_wasm/.gitignore

@@ -3,4 +3,5 @@
 Cargo.lock
 bin/
 pkg/
+pkg_*/
 wasm-pack.log

um_wasm/Cargo.toml

@@ -3,6 +3,9 @@ name = "um_wasm"
 version = "0.1.0"
 authors = ["鲁树人 <lu.shuren@um-react.app>"]
 edition = "2018"
+description = "um_crypo in WebAssembly"
+repository = "https://git.unlock-music.dev/lsr/lib_um_crypto_rust.git"
+license = "Apache-2.0 + MIT"
 
 [lib]
 crate-type = ["cdylib", "rlib"]
@@ -12,6 +15,7 @@ default = ["console_error_panic_hook"]
 
 [dependencies]
 wasm-bindgen = "0.2.84"
+anyhow = "1.0.86"
 
 # The `console_error_panic_hook` crate provides better debugging of panics by
 # logging them with `console.error`. This is great for development, but requires

um_wasm/src/errors.rs

@@ -0,0 +1,22 @@
+use wasm_bindgen::JsError;
+
+#[derive(Debug)]
+pub struct WasmError {
+    error: anyhow::Error,
+}
+
+impl From<anyhow::Error> for WasmError {
+    fn from(err: anyhow::Error) -> WasmError {
+        WasmError { error: err }
+    }
+}
+
+impl From<WasmError> for JsError {
+    fn from(error: WasmError) -> Self {
+        JsError::new(&error.error.to_string())
+    }
+}
+
+pub fn map_js_error(error: anyhow::Error) -> wasm_bindgen::JsError {
+    JsError::new(&error.to_string())
+}

um_wasm/src/exports/kuwo.rs

@@ -0,0 +1,9 @@
+use crate::errors::map_js_error;
+use wasm_bindgen::prelude::wasm_bindgen;
+use wasm_bindgen::JsError;
+
+#[wasm_bindgen(js_name=kuwoDecodeEKey)]
+pub fn decode_ekey(ekey: &str) -> Result<String, JsError> {
+    let ekey = umc_kuwo::des::decode_ekey(ekey, &umc_kuwo::SECRET_KEY).map_err(map_js_error)?;
+    Ok(ekey)
+}

um_wasm/src/exports/mod.rs

@@ -0,0 +1 @@
+pub mod kuwo;

um_wasm/src/lib.rs

@@ -1,3 +1,5 @@
+mod errors;
+pub mod exports;
 mod utils;
 
 use utils::set_panic_hook;

um_wasm_loader/.gitignore

@@ -0,0 +1,5 @@
+node_modules/
+pkg/
+dist/
+/LICENSE*
+/*.tgz

um_wasm_loader/.npmrc

@@ -0,0 +1 @@
+@um:registry=https://git.unlock-music.dev/api/packages/um/npm/

um_wasm_loader/Readme.MD

@@ -0,0 +1,25 @@
+# @um/crypto
+
+用于 Unlock Music 的加解密支持库。
+
+使用 Rust 编写，并使用 `wasm-pack` 转义到 WebAssembly 格式，用于在不同的平台（浏览器）运行。
+
+## 使用
+
+在项目根目录下，建立或更改 `.npmrc` 文件，确保下述行存在：
+
+```
+@um:registry=https://git.unlock-music.dev/api/packages/um/npm/
+```
+
+使用你喜欢的包管理器安装，例如 `npm` 或 `pnpm`：
+
+```sh
+# 使用 npm
+npm install @um/crypto
+
+# 使用 pnpm
+pnpm install @um/crypto
+```
+
+具体能干啥… 参考源码吧。

um_wasm_loader/Release.MD

@@ -0,0 +1,15 @@
+## 发包
+
+- 到后台建立一个 API Token，确保有 `Packages` 的写权限：
+- 编辑 `~/.npmrc`，加入下述两行并替换 `token` 为新申请的令牌：
+
+  ```text
+  //git.unlock-music.dev/api/packages/um/npm/:_authToken=xxxxx123456789xxxxx
+  //git.unlock-music.dev/api/packages/npm/:_authToken=xxxxx123456789xxxxx
+  ```
+
+- 使用 `publish` 指令发包：
+
+  ```sh
+  pnpm publish --access=public
+  ```

um_wasm_loader/build.js

@@ -0,0 +1,103 @@
+#!/usr/bin/env node
+
+const path = require('node:path');
+const os = require('node:os');
+const { spawn } = require('node:child_process');
+const { readFile, writeFile, copyFile, rm } = require('node:fs/promises');
+
+/**
+ * Run and wait for command to complete.
+ * @param {string[]} command
+ * @param {SpawnOptionsWithStdioTuple} [opts]
+ * @returns {Promise<void>}
+ */
+async function run(command, opts = undefined) {
+  return new Promise((resolve, reject) => {
+    console.log(`running: ${command.join(' ')}`);
+    const child = spawn(command[0], command.slice(1), {
+      stdio: ['ignore', 'inherit', 'inherit'],
+      ...opts,
+    });
+    child.once('error', reject);
+    child.once('close', (code) => {
+      if (code === 0) {
+        resolve();
+      } else {
+        reject(new Error(`process exit with code ${code}`));
+      }
+    });
+  });
+}
+
+/**
+ * @param {string} filepath
+ * @param  {...([Buffer, Buffer])} binaryReplacements
+ */
+async function replaceBytes(filepath, ...binaryReplacements) {
+  let content = await readFile(filepath);
+  for (const [search, replace] of binaryReplacements) {
+    let idx = -1;
+    while ((idx = content.indexOf(search, idx + 1)) != -1) {
+      replace.copy(content, idx, 0, replace.length);
+    }
+  }
+  await writeFile(filepath, content);
+}
+
+/**
+ * @param {string} filepath
+ * @param  {...([RegExp|string, string|(...args: string) => unknown])} replacementRules
+ */
+async function replaceFileByRegex(filepath, ...replacementRules) {
+  let content = await readFile(filepath, 'utf-8');
+  for (const [search, replace] of replacementRules) {
+    content = content.replace(search, replace);
+  }
+  await writeFile(filepath, content, 'utf-8');
+}
+
+async function main() {
+  const wasmSourceDir = path.join(__dirname, '..', 'um_wasm');
+  const wasmOutDir = path.resolve(__dirname, 'pkg');
+  const wasmDistDir = path.resolve(__dirname, 'dist');
+  await rm(wasmOutDir, { recursive: true, force: true });
+  const wasmRelOutDir = path.relative(wasmSourceDir, wasmOutDir);
+  await run(['wasm-pack', 'build', '--target', 'web', '--out-dir', wasmRelOutDir], {
+    cwd: path.resolve(__dirname, '..', 'um_wasm'),
+  });
+
+  // Remove unneeded files
+  await Promise.all([
+    ...['.gitignore', 'package.json', 'README.md'].map((name) => {
+      return rm(path.join(wasmOutDir, name), { force: true });
+    }),
+    rm(wasmDistDir, { recursive: true, force: true }),
+  ]);
+
+  const homeDir = os.homedir();
+  const dummyHome = '/h' + homeDir.slice(3).replace(/./g, '_') + '/';
+
+  // Patch some files...
+  await Promise.all([
+    replaceFileByRegex(path.join(wasmOutDir, 'um_wasm.js'), [/export default (__wbg_init);/, 'export { $1 };']),
+    replaceFileByRegex(path.join(wasmOutDir, 'um_wasm.d.ts'), [/export default (function __wbg_init)/, 'export $1']),
+    replaceBytes(path.join(wasmOutDir, 'um_wasm_bg.wasm'), [
+      Buffer.from(homeDir, 'utf-8'),
+      Buffer.from(dummyHome, 'utf-8'),
+    ]),
+    copyFile(path.join(__dirname, '../LICENSE_APACHE'), 'LICENSE_APACHE'),
+    copyFile(path.join(__dirname, '../LICENSE_MIT'), 'LICENSE_MIT'),
+  ]);
+
+  // Ask rollup to build bundles.
+  await run(['pnpm', 'build:bundle']);
+}
+
+main()
+  .catch((err) => {
+    console.error(err);
+    process.exit(1);
+  })
+  .then(() => {
+    process.exit(0);
+  });

um_wasm_loader/package.json

@@ -0,0 +1,45 @@
+{
+  "name": "@um/crypto",
+  "version": "0.0.0-alpha.1",
+  "description": "Project Unlock Music: 加解密支持库",
+  "scripts": {
+    "build": "node build.js",
+    "build:bundle": "rollup -c"
+  },
+  "main": "dist/loader.js",
+  "module": "dist/loader.mjs",
+  "types": "dist/loader.d.ts",
+  "exports": {
+    ".": {
+      "import": "./dist/loader.mjs",
+      "require": "./dist/loader.js",
+      "types": "./dist/loader.d.ts"
+    },
+    "./inline": {
+      "require": "./dist/loader-inline.js",
+      "import": "./dist/loader-inline.js",
+      "types": "./dist/loader.d.ts"
+    }
+  },
+  "files": [
+    "dist/",
+    "LICENSE*"
+  ],
+  "keywords": [],
+  "author": "",
+  "license": "MIT + APACHE 2.0",
+  "devDependencies": {
+    "@rollup/plugin-replace": "^5.0.7",
+    "@rollup/plugin-wasm": "^6.2.2",
+    "@types/node": "^22.5.2",
+    "prettier": "^3.3.3",
+    "rollup": "^4.21.2",
+    "rollup-plugin-dts": "^6.1.1",
+    "typescript": "^5.5.4"
+  },
+  "prettier": {
+    "singleQuote": true,
+    "printWidth": 120,
+    "tabWidth": 2
+  }
+}

um_wasm_loader/pnpm-lock.yaml

@@ -0,0 +1,391 @@
+lockfileVersion: '6.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+devDependencies:
+  '@rollup/plugin-replace':
+    specifier: ^5.0.7
+    version: 5.0.7(rollup@4.21.2)
+  '@rollup/plugin-wasm':
+    specifier: ^6.2.2
+    version: 6.2.2(rollup@4.21.2)
+  '@types/node':
+    specifier: ^22.5.2
+    version: 22.5.2
+  prettier:
+    specifier: ^3.3.3
+    version: 3.3.3
+  rollup:
+    specifier: ^4.21.2
+    version: 4.21.2
+  rollup-plugin-dts:
+    specifier: ^6.1.1
+    version: 6.1.1(rollup@4.21.2)(typescript@5.5.4)
+  typescript:
+    specifier: ^5.5.4
+    version: 5.5.4
+
+packages:
+
+  /@babel/code-frame@7.24.7:
+    resolution: {integrity: sha512-BcYH1CVJBO9tvyIZ2jVeXgSIMvGZ2FDRvDdOIVQyuklNKSsx+eppDEBq/g47Ayw+RqNFE+URvOShmf+f/qwAlA==}
+    engines: {node: '>=6.9.0'}
+    requiresBuild: true
+    dependencies:
+      '@babel/highlight': 7.24.7
+      picocolors: 1.0.1
+    dev: true
+    optional: true
+
+  /@babel/helper-validator-identifier@7.24.7:
+    resolution: {integrity: sha512-rR+PBcQ1SMQDDyF6X0wxtG8QyLCgUB0eRAGguqRLfkCA87l7yAP7ehq8SNj96OOGTO8OBV70KhuFYcIkHXOg0w==}
+    engines: {node: '>=6.9.0'}
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@babel/highlight@7.24.7:
+    resolution: {integrity: sha512-EStJpq4OuY8xYfhGVXngigBJRWxftKX9ksiGDnmlY3o7B/V7KIAc9X4oiK87uPJSc/vs5L869bem5fhZa8caZw==}
+    engines: {node: '>=6.9.0'}
+    requiresBuild: true
+    dependencies:
+      '@babel/helper-validator-identifier': 7.24.7
+      chalk: 2.4.2
+      js-tokens: 4.0.0
+      picocolors: 1.0.1
+    dev: true
+    optional: true
+
+  /@jridgewell/sourcemap-codec@1.5.0:
+    resolution: {integrity: sha512-gv3ZRaISU3fjPAgNsriBRqGWQL6quFx04YMPW/zD8XMLsU32mhCCbfbO6KZFLjvYpCZ8zyDEgqsgf+PwPaM7GQ==}
+    dev: true
+
+  /@rollup/plugin-replace@5.0.7(rollup@4.21.2):
+    resolution: {integrity: sha512-PqxSfuorkHz/SPpyngLyg5GCEkOcee9M1bkxiVDr41Pd61mqP1PLOoDPbpl44SB2mQGKwV/In74gqQmGITOhEQ==}
+    engines: {node: '>=14.0.0'}
+    peerDependencies:
+      rollup: ^1.20.0||^2.0.0||^3.0.0||^4.0.0
+    peerDependenciesMeta:
+      rollup:
+        optional: true
+    dependencies:
+      '@rollup/pluginutils': 5.1.0(rollup@4.21.2)
+      magic-string: 0.30.11
+      rollup: 4.21.2
+    dev: true
+
+  /@rollup/plugin-wasm@6.2.2(rollup@4.21.2):
+    resolution: {integrity: sha512-gpC4R1G9Ni92ZIRTexqbhX7U+9estZrbhP+9SRb0DW9xpB9g7j34r+J2hqrcW/lRI7dJaU84MxZM0Rt82tqYPQ==}
+    engines: {node: '>=14.0.0'}
+    peerDependencies:
+      rollup: ^1.20.0||^2.0.0||^3.0.0||^4.0.0
+    peerDependenciesMeta:
+      rollup:
+        optional: true
+    dependencies:
+      '@rollup/pluginutils': 5.1.0(rollup@4.21.2)
+      rollup: 4.21.2
+    dev: true
+
+  /@rollup/pluginutils@5.1.0(rollup@4.21.2):
+    resolution: {integrity: sha512-XTIWOPPcpvyKI6L1NHo0lFlCyznUEyPmPY1mc3KpPVDYulHSTvyeLNVW00QTLIAFNhR3kYnJTQHeGqU4M3n09g==}
+    engines: {node: '>=14.0.0'}
+    peerDependencies:
+      rollup: ^1.20.0||^2.0.0||^3.0.0||^4.0.0
+    peerDependenciesMeta:
+      rollup:
+        optional: true
+    dependencies:
+      '@types/estree': 1.0.5
+      estree-walker: 2.0.2
+      picomatch: 2.3.1
+      rollup: 4.21.2
+    dev: true
+
+  /@rollup/rollup-android-arm-eabi@4.21.2:
+    resolution: {integrity: sha512-fSuPrt0ZO8uXeS+xP3b+yYTCBUd05MoSp2N/MFOgjhhUhMmchXlpTQrTpI8T+YAwAQuK7MafsCOxW7VrPMrJcg==}
+    cpu: [arm]
+    os: [android]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-android-arm64@4.21.2:
+    resolution: {integrity: sha512-xGU5ZQmPlsjQS6tzTTGwMsnKUtu0WVbl0hYpTPauvbRAnmIvpInhJtgjj3mcuJpEiuUw4v1s4BimkdfDWlh7gA==}
+    cpu: [arm64]
+    os: [android]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-darwin-arm64@4.21.2:
+    resolution: {integrity: sha512-99AhQ3/ZMxU7jw34Sq8brzXqWH/bMnf7ZVhvLk9QU2cOepbQSVTns6qoErJmSiAvU3InRqC2RRZ5ovh1KN0d0Q==}
+    cpu: [arm64]
+    os: [darwin]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-darwin-x64@4.21.2:
+    resolution: {integrity: sha512-ZbRaUvw2iN/y37x6dY50D8m2BnDbBjlnMPotDi/qITMJ4sIxNY33HArjikDyakhSv0+ybdUxhWxE6kTI4oX26w==}
+    cpu: [x64]
+    os: [darwin]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-arm-gnueabihf@4.21.2:
+    resolution: {integrity: sha512-ztRJJMiE8nnU1YFcdbd9BcH6bGWG1z+jP+IPW2oDUAPxPjo9dverIOyXz76m6IPA6udEL12reYeLojzW2cYL7w==}
+    cpu: [arm]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-arm-musleabihf@4.21.2:
+    resolution: {integrity: sha512-flOcGHDZajGKYpLV0JNc0VFH361M7rnV1ee+NTeC/BQQ1/0pllYcFmxpagltANYt8FYf9+kL6RSk80Ziwyhr7w==}
+    cpu: [arm]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-arm64-gnu@4.21.2:
+    resolution: {integrity: sha512-69CF19Kp3TdMopyteO/LJbWufOzqqXzkrv4L2sP8kfMaAQ6iwky7NoXTp7bD6/irKgknDKM0P9E/1l5XxVQAhw==}
+    cpu: [arm64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-arm64-musl@4.21.2:
+    resolution: {integrity: sha512-48pD/fJkTiHAZTnZwR0VzHrao70/4MlzJrq0ZsILjLW/Ab/1XlVUStYyGt7tdyIiVSlGZbnliqmult/QGA2O2w==}
+    cpu: [arm64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-powerpc64le-gnu@4.21.2:
+    resolution: {integrity: sha512-cZdyuInj0ofc7mAQpKcPR2a2iu4YM4FQfuUzCVA2u4HI95lCwzjoPtdWjdpDKyHxI0UO82bLDoOaLfpZ/wviyQ==}
+    cpu: [ppc64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-riscv64-gnu@4.21.2:
+    resolution: {integrity: sha512-RL56JMT6NwQ0lXIQmMIWr1SW28z4E4pOhRRNqwWZeXpRlykRIlEpSWdsgNWJbYBEWD84eocjSGDu/XxbYeCmwg==}
+    cpu: [riscv64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-s390x-gnu@4.21.2:
+    resolution: {integrity: sha512-PMxkrWS9z38bCr3rWvDFVGD6sFeZJw4iQlhrup7ReGmfn7Oukrr/zweLhYX6v2/8J6Cep9IEA/SmjXjCmSbrMQ==}
+    cpu: [s390x]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-x64-gnu@4.21.2:
+    resolution: {integrity: sha512-B90tYAUoLhU22olrafY3JQCFLnT3NglazdwkHyxNDYF/zAxJt5fJUB/yBoWFoIQ7SQj+KLe3iL4BhOMa9fzgpw==}
+    cpu: [x64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-x64-musl@4.21.2:
+    resolution: {integrity: sha512-7twFizNXudESmC9oneLGIUmoHiiLppz/Xs5uJQ4ShvE6234K0VB1/aJYU3f/4g7PhssLGKBVCC37uRkkOi8wjg==}
+    cpu: [x64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-win32-arm64-msvc@4.21.2:
+    resolution: {integrity: sha512-9rRero0E7qTeYf6+rFh3AErTNU1VCQg2mn7CQcI44vNUWM9Ze7MSRS/9RFuSsox+vstRt97+x3sOhEey024FRQ==}
+    cpu: [arm64]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-win32-ia32-msvc@4.21.2:
+    resolution: {integrity: sha512-5rA4vjlqgrpbFVVHX3qkrCo/fZTj1q0Xxpg+Z7yIo3J2AilW7t2+n6Q8Jrx+4MrYpAnjttTYF8rr7bP46BPzRw==}
+    cpu: [ia32]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-win32-x64-msvc@4.21.2:
+    resolution: {integrity: sha512-6UUxd0+SKomjdzuAcp+HAmxw1FlGBnl1v2yEPSabtx4lBfdXHDVsW7+lQkgz9cNFJGY3AWR7+V8P5BqkD9L9nA==}
+    cpu: [x64]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@types/estree@1.0.5:
+    resolution: {integrity: sha512-/kYRxGDLWzHOB7q+wtSUQlFrtcdUccpfy+X+9iMBpHK8QLLhx2wIPYuS5DYtR9Wa/YlZAbIovy7qVdB1Aq6Lyw==}
+    dev: true
+
+  /@types/node@22.5.2:
+    resolution: {integrity: sha512-acJsPTEqYqulZS/Yp/S3GgeE6GZ0qYODUR8aVr/DkhHQ8l9nd4j5x1/ZJy9/gHrRlFMqkO6i0I3E27Alu4jjPg==}
+    dependencies:
+      undici-types: 6.19.8
+    dev: true
+
+  /ansi-styles@3.2.1:
+    resolution: {integrity: sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==}
+    engines: {node: '>=4'}
+    requiresBuild: true
+    dependencies:
+      color-convert: 1.9.3
+    dev: true
+    optional: true
+
+  /chalk@2.4.2:
+    resolution: {integrity: sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==}
+    engines: {node: '>=4'}
+    requiresBuild: true
+    dependencies:
+      ansi-styles: 3.2.1
+      escape-string-regexp: 1.0.5
+      supports-color: 5.5.0
+    dev: true
+    optional: true
+
+  /color-convert@1.9.3:
+    resolution: {integrity: sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==}
+    requiresBuild: true
+    dependencies:
+      color-name: 1.1.3
+    dev: true
+    optional: true
+
+  /color-name@1.1.3:
+    resolution: {integrity: sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw==}
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /escape-string-regexp@1.0.5:
+    resolution: {integrity: sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg==}
+    engines: {node: '>=0.8.0'}
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /estree-walker@2.0.2:
+    resolution: {integrity: sha512-Rfkk/Mp/DL7JVje3u18FxFujQlTNR2q6QfMSMB7AvCBx91NGj/ba3kCfza0f6dVDbw7YlRf/nDrn7pQrCCyQ/w==}
+    dev: true
+
+  /fsevents@2.3.3:
+    resolution: {integrity: sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==}
+    engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
+    os: [darwin]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /has-flag@3.0.0:
+    resolution: {integrity: sha512-sKJf1+ceQBr4SMkvQnBDNDtf4TXpVhVGateu0t918bl30FnbE2m4vNLX+VWe/dpjlb+HugGYzW7uQXH98HPEYw==}
+    engines: {node: '>=4'}
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /js-tokens@4.0.0:
+    resolution: {integrity: sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==}
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /magic-string@0.30.11:
+    resolution: {integrity: sha512-+Wri9p0QHMy+545hKww7YAu5NyzF8iomPL/RQazugQ9+Ez4Ic3mERMd8ZTX5rfK944j+560ZJi8iAwgak1Ac7A==}
+    dependencies:
+      '@jridgewell/sourcemap-codec': 1.5.0
+    dev: true
+
+  /picocolors@1.0.1:
+    resolution: {integrity: sha512-anP1Z8qwhkbmu7MFP5iTt+wQKXgwzf7zTyGlcdzabySa9vd0Xt392U0rVmz9poOaBj0uHJKyyo9/upk0HrEQew==}
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /picomatch@2.3.1:
+    resolution: {integrity: sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==}
+    engines: {node: '>=8.6'}
+    dev: true
+
+  /prettier@3.3.3:
+    resolution: {integrity: sha512-i2tDNA0O5IrMO757lfrdQZCc2jPNDVntV0m/+4whiDfWaTKfMNgR7Qz0NAeGz/nRqF4m5/6CLzbP4/liHt12Ew==}
+    engines: {node: '>=14'}
+    hasBin: true
+    dev: true
+
+  /rollup-plugin-dts@6.1.1(rollup@4.21.2)(typescript@5.5.4):
+    resolution: {integrity: sha512-aSHRcJ6KG2IHIioYlvAOcEq6U99sVtqDDKVhnwt70rW6tsz3tv5OSjEiWcgzfsHdLyGXZ/3b/7b/+Za3Y6r1XA==}
+    engines: {node: '>=16'}
+    peerDependencies:
+      rollup: ^3.29.4 || ^4
+      typescript: ^4.5 || ^5.0
+    dependencies:
+      magic-string: 0.30.11
+      rollup: 4.21.2
+      typescript: 5.5.4
+    optionalDependencies:
+      '@babel/code-frame': 7.24.7
+    dev: true
+
+  /rollup@4.21.2:
+    resolution: {integrity: sha512-e3TapAgYf9xjdLvKQCkQTnbTKd4a6jwlpQSJJFokHGaX2IVjoEqkIIhiQfqsi0cdwlOD+tQGuOd5AJkc5RngBw==}
+    engines: {node: '>=18.0.0', npm: '>=8.0.0'}
+    hasBin: true
+    dependencies:
+      '@types/estree': 1.0.5
+    optionalDependencies:
+      '@rollup/rollup-android-arm-eabi': 4.21.2
+      '@rollup/rollup-android-arm64': 4.21.2
+      '@rollup/rollup-darwin-arm64': 4.21.2
+      '@rollup/rollup-darwin-x64': 4.21.2
+      '@rollup/rollup-linux-arm-gnueabihf': 4.21.2
+      '@rollup/rollup-linux-arm-musleabihf': 4.21.2
+      '@rollup/rollup-linux-arm64-gnu': 4.21.2
+      '@rollup/rollup-linux-arm64-musl': 4.21.2
+      '@rollup/rollup-linux-powerpc64le-gnu': 4.21.2
+      '@rollup/rollup-linux-riscv64-gnu': 4.21.2
+      '@rollup/rollup-linux-s390x-gnu': 4.21.2
+      '@rollup/rollup-linux-x64-gnu': 4.21.2
+      '@rollup/rollup-linux-x64-musl': 4.21.2
+      '@rollup/rollup-win32-arm64-msvc': 4.21.2
+      '@rollup/rollup-win32-ia32-msvc': 4.21.2
+      '@rollup/rollup-win32-x64-msvc': 4.21.2
+      fsevents: 2.3.3
+    dev: true
+
+  /supports-color@5.5.0:
+    resolution: {integrity: sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==}
+    engines: {node: '>=4'}
+    requiresBuild: true
+    dependencies:
+      has-flag: 3.0.0
+    dev: true
+    optional: true
+
+  /typescript@5.5.4:
+    resolution: {integrity: sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==}
+    engines: {node: '>=14.17'}
+    hasBin: true
+    dev: true
+
+  /undici-types@6.19.8:
+    resolution: {integrity: sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==}
+    dev: true

um_wasm_loader/rollup.config.mjs

@@ -0,0 +1,50 @@
+import { defineConfig } from 'rollup';
+import { wasm } from '@rollup/plugin-wasm';
+import replace from '@rollup/plugin-replace';
+import { dts } from 'rollup-plugin-dts';
+
+function makePlugins({ sync }) {
+  const plugins = [];
+  plugins.push(wasm({ sync: sync ? ['pkg/um_wasm_bg.wasm'] : [] }));
+  plugins.push(
+    replace({
+      preventAssignment: true,
+      values: {
+        'process.env.UMC_INLINE_BUILD': JSON.stringify(String(sync ? 1 : 0)),
+      },
+    }),
+  );
+  return plugins;
+}
+
+export default defineConfig([
+  {
+    input: 'src/loader.mjs',
+    output: {
+      file: 'dist/loader.js',
+      format: 'cjs',
+    },
+    plugins: [...makePlugins({ sync: false })],
+  },
+  {
+    input: 'src/loader.mjs',
+    output: {
+      file: 'dist/loader.mjs',
+      format: 'es',
+    },
+    plugins: [...makePlugins({ sync: false })],
+  },
+  {
+    input: 'src/loader.mjs',
+    output: {
+      file: 'dist/loader-inline.js',
+      format: 'cjs',
+    },
+    plugins: [...makePlugins({ sync: true })],
+  },
+  {
+    input: './src/loader.d.ts',
+    output: [{ file: 'dist/loader.d.ts', format: 'es' }],
+    plugins: [dts()],
+  },
+]);

um_wasm_loader/src/loader.d.ts

@@ -0,0 +1,2 @@
+export * from '../pkg/um_wasm';
+export const ready: Promise<void>;

um_wasm_loader/src/loader.mjs

@@ -0,0 +1,16 @@
+import umWasm from '../pkg/um_wasm_bg.wasm';
+import { __wbg_init, initSync } from '../pkg/um_wasm.js';
+export * from '../pkg/um_wasm.js';
+
+function loader() {
+  if (process.env.UMC_INLINE_BUILD === '1') {
+    initSync({ module: umWasm() });
+    return Promise.resolve(undefined);
+  } else {
+    return umWasm().then(async (wasm) => {
+      await __wbg_init({ module_or_path: wasm });
+    });
+  }
+}
+
+export const ready = loader();