tsconfig.json

{
  "compilerOptions": {
    "moduleResolution": "bundler",
    "module": "esnext",
    "target": "es5",
    "lib": [
      "dom",
      "es2015",
      "es2016",
      "es2017",
      "es2020"
    ],
    "types": ["jest"],
    "strict": true,
    "allowSyntheticDefaultImports": true,
    "forceConsistentCasingInFileNames": true,
    "pretty": true,
    "sourceMap": true,
    "outDir": "dist/lib",
    "declaration": true,
    "declarationDir": "dist/typings",
    "stripInternal": true,
    "skipLibCheck": true,
    // tsup forces baseUrl:"." into its DTS build (rollup.js, dtsPlugin call),
    // which TS6 deprecates. We can't override it from here, so silence it until
    // tsup stops injecting baseUrl. Remove when that's fixed upstream.
    "ignoreDeprecations": "6.0"
  },
  "files": [
    "index.ts"
  ],
  "exclude": [
    "node_modules"
  ],
  "compileOnSave": false,
  "buildOnSave": false
}