tsconfig.json

{
  "compilerOptions": {
    // Formatting
    "strict": true,
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "exactOptionalPropertyTypes": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitOverride": true,
    "noImplicitReturns": false,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "useUnknownInCatchVariables": true,

    // Module
    "module": "CommonJS",
    "moduleResolution": "node",
    "resolveJsonModule": true,

    // Decaration Emission
    "declaration": true,
    "importHelpers": true,
    "importsNotUsedAsValues": "error",
    "inlineSources": true,
    "newLine": "lf",
    "noEmitHelpers": true,
    "preserveConstEnums": true,
    "removeComments": false,
    "sourceMap": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,

    // ModuleType & Formatting
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": ["ESNext"],
    "target": "ES2020",
    "useDefineForClassFields": true,

    // Libs have broken typescript :shrug:
    "skipLibCheck": true
  },
  "exclude": ["**/*.test.ts"]
}