tsconfig.base.json

{
  // This tsconfig file contains the shared config for the build (tsconfig.build.json) and type checking (tsconfig.json) config.
  "include": [],
  "compilerOptions": {
    // Type checking
    "strict": true,
    "useDefineForClassFields": true, // Not enabled by default in `strict` mode unless we bump `target` to ES2022.
    "noFallthroughCasesInSwitch": true, // Not enabled by default in `strict` mode.
    "noImplicitReturns": true, // Not enabled by default in `strict` mode.
    "noImplicitOverride": true, // Not enabled by default in `strict` mode.
    "noUnusedLocals": true, // Not enabled by default in `strict` mode.
    "noUnusedParameters": true, // Not enabled by default in `strict` mode.
    "exactOptionalPropertyTypes": true,
    "noUncheckedIndexedAccess": true,

    // JavaScript support
    "allowJs": false,
    "checkJs": false,

    // Interop constraints
    "esModuleInterop": false,
    "allowSyntheticDefaultImports": false,
    "forceConsistentCasingInFileNames": true,
    "verbatimModuleSyntax": true,

    // Language and environment
    "moduleResolution": "NodeNext",
    "module": "NodeNext",
    "target": "ES2021",
    "lib": ["ES2022", "DOM"],

    // Skip type checking for node modules
    "skipLibCheck": true
  }
}