allow separate `compilerOptions` for node modules

[DetachHead]

Suggestion

🔍 Search Terms

tsconfig compilerOptions node_modules

✅ Viability Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, new syntax sugar for JS, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

⭐ Suggestion

it would be nice if you could include your tsconfig.json in your published package, and projects that depend on it could use its compilerOptions when type checking it

📃 Motivating Example

it's frustrating when you try to enable strictness flags in your project, only for it to cause type errors in node_modules. if each package included its tsconfig.json it could type-check them with the compilerOptions defined there, instead of your project's tsconfig.json which should only really apply to the source code that you can control

💻 Use Cases

enabling strictness flags without having to enable skipLibCheck

[MartinJohns]

This essentially sounds the same as #37853.