tsconfig.json

{
  "$schema": "https://json.schemastore.org/tsconfig",
  "compilerOptions": {
    "module": "nodenext",
    "moduleResolution": "nodenext",
    "target": "es6",
    "declaration": true,
    "removeComments": true,
    "experimentalDecorators": true,
    "allowSyntheticDefaultImports": true,
    "sourceMap": true,
    "strictNullChecks": true,
    "noImplicitAny": false,
    "strictBindCallApply": true,
    "strict": true,
    "allowUnusedLabels": false,
    "allowUnreachableCode": false,
    "exactOptionalPropertyTypes": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "checkJs": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "alwaysStrict": true,
    "useUnknownInCatchVariables": true,
    "strictPropertyInitialization": true,
    "strictFunctionTypes": true,
    "noImplicitThis": true,
    "resolveJsonModule": true,
    "baseUrl": "./",
    "outDir": "./build",
    "paths": {
      "$src/*": ["./src/*"]
    }
  }
}