tsconfig.json

{
  // see https://www.typescriptlang.org/tsconfig to better understand tsconfigs
  "compilerOptions": {
    "target": "ES2019",
    "module": "ESNext",
    "moduleResolution": "node",
    "lib": ["ES2019", "DOM", "DOM.Iterable"],
    "incremental": true,
    "tsBuildInfoFile": "tsconfig.tsbuildinfo",
    // output .d.ts declaration files for consumers
    "declaration": true,
    "declarationMap": true,
    // match output dir to input dir. e.g. dist/index instead of dist/src/index
    "rootDir": "./src",
    "outDir": "./lib",
    // stricter type-checking for stronger correctness. Recommended by TS
    "strict": true,
    // interop between ESM and CJS modules. Recommended by TS
    "esModuleInterop": true,
    // significant perf increase by skipping checking .d.ts files, particularly those in node_modules. Recommended by TS
    "skipLibCheck": true,
    // error out if import and file system have a casing mismatch. Recommended by TS
    "forceConsistentCasingInFileNames": true,
    // ensure type imports are side-effect free by enforcing that `import type` is used
    "verbatimModuleSyntax": true,
    // prevent the use features that do not work with isolated transpilation
    "isolatedModules": true,
    // transpile JSX to React.createElement
    "jsx": "react"
  },
  "include": ["src", "types"]
}