tsconfig.json

{
    "compilerOptions": {
        // module
        "module": "ESNext",
        "moduleResolution": "node",
        "esModuleInterop": true,
        "resolveJsonModule": true,

        // type-checking
        "strict": true,
        "allowUnreachableCode": false,
        "allowUnusedLabels": false,
        "noUnusedParameters": true,
        "noUnusedLocals": true,
        "noImplicitAny": true,
        "noImplicitThis": true,
        "skipLibCheck": true,

        // emit
        "declaration": true,
        "declarationMap": true,
        "sourceMap": true,
        "newLine": "lf",
        "removeComments": false,
        "importHelpers": true,
    
        // output
        "outDir": "./dist",
        "rootDir": "./lib",

        // environment & language
        "target": "ESNext",
        "lib": ["ESNext"],
        "forceConsistentCasingInFileNames": true,
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true
    },
    "include": ["./lib/**/*.ts"],
    "exclude": ["./node_modules", "./dist"]
}