tsconfig.json

{
  // This base tsconfig is used for development of the project's src files.

  "include": ["src/**/*", "./*.ts"],

  "compilerOptions": {
    // Language and Environment:
    "target": "ESNext",
    "lib": ["DOM", "DOM.Iterable", "ESNext"],
    "allowJs": false,

    // Modules:
    "module": "NodeNext",
    "moduleResolution": "nodenext",
    "resolveJsonModule": true,
    "types": ["node", "vitest/globals"],

    // Emit:
    "noEmitOnError": true,

    // Completeness:
    "skipLibCheck": false,

    // Output Formatting:
    "declaration": true,
    "noErrorTruncation": true,

    // Interop Constraints:
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,

    // Type Checking:
    "exactOptionalPropertyTypes": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitOverride": true,
    "noUncheckedIndexedAccess": true,
    "noUnusedLocals": true,
    "strict": true
  }
}