EOL of Node.js 12; npm 8.8.0; building bundler; ShadowRealm

• Use the npm run commands you already know
• Automatically run dependencies between npm scripts in parallel
• Watch any script and continuously re-run on changes
• Skip scripts that are already fresh
• Cache output locally and remotely on GitHub Actions for free
• Works with single packages, npm workspaces, and other monorepos

{
  "scripts": {
    "build": "wireit",
    "bundle": "wireit"
  },
  "wireit": {
    "build": {
      "command": "tsc",
      "files": ["src/**/*.ts", "tsconfig.json"],
      "output": ["lib/**"]
    },
    "bundle": {
      "command": "rollup -c",
      "dependencies": ["build"],
      "files": ["rollup.config.json"],
      "output": ["dist/bundle.js"]
    }
  }
}

• Efficiently search for all files on the file system
• Resolve the dependency graph
• Serialize the bundle
• Execute our bundle using a runtime
• Compile each file in parallel