My go-to TypeScript configuration for modern Node.js libraries built for CommonJS with an ES2020 target.

tsconfig.json

{
  "compilerOptions": {
    "target": "ES2020",
    "module": "CommonJS",
    "moduleResolution": "Node",
    "lib": ["ES2020"],
    "rootDir": "src",
    "outDir": "dist",

    "declaration": true,
    "sourceMap": true,
    "strict": true,
    "noImplicitAny": true,
    "esModuleInterop": true,
    "resolveJsonModule": true,
    "skipLibCheck": true,

    "forceConsistentCasingInFileNames": true
  },
  "include": ["src"],
  "exclude": ["node_modules", "dist", "tests", "examples"]
}