tsconfig.json

// https://www.typescriptlang.org/tsconfig
{
  "compilerOptions": {
    // -- Type Checking
    "strict": true,
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "exactOptionalPropertyTypes": false, // depends on project
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "noUnusedLocals": false,
    "noUnusedParameters": true,
    // -- Modules
    "module": "CommonJS",
    "moduleResolution": "Node",
    "resolveJsonModule": true,
    "rootDir": ".",
    // -- Emit
    "declaration": true,
    "declarationMap": true,
    "stripInternal": true,
    "importsNotUsedAsValues": "error",
    "newLine": "lf",
    "outDir": "build",
    "sourceMap": true,
    // -- Editor Support
    "plugins": [
      {
        "name": "typescript-eslint-language-service"
      }
    ],
    // -- Interop Constraints
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    // -- Language and Environment
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "lib": [
      "ES2020" // Node 14
    ],
    // https://github.com/microsoft/TypeScript/wiki/Node-Target-Mapping
    "target": "ES2020", // Node 14
    // -- Projects
    "composite": true,
    "incremental": true,
    // -- Completeness
    "skipLibCheck": true,
  },
  "include": [
    "src/**/*",
    "lambda/**/*",
    "stack/**/*",
    "test/**/*"
  ]
}