tsconfig.base.json

{
  "extends": "@tsconfig/node20",
  "compilerOptions": {
    /* Reasonable default base options: */

    // No emitting by default.
    "noEmit": true,

    // Of course, this is common practice in Node but also part of ES standards.
    // todo: is there a way to enforce "with type"?
    "resolveJsonModule": true,

    // ESM-first please, yes.
    "esModuleInterop": true,
    "moduleDetection": "force",

    // Of course, we don't want to check libraries. We shouldn't in any case.
    "skipLibCheck": true,

    // Well yes of course, should be compatible, right?
    "allowJs": true,

    "isolatedModules": true,

    // Well, yes, good idea.
    "verbatimModuleSyntax": true,

    // Of course, we want strictness. Why is this not the default?
    "strict": true,

    // What, is this no included in strictness?
    "noUncheckedIndexedAccess": true,
    "noImplicitOverride": true,

    // Allow "Deno"-style imports
    "allowImportingTsExtensions": true,
  }
}