esptool-js-openDTU/tsconfig.json

{
  "compilerOptions": {
    "module": "ES2020",
    "target": "ES2019",
    "declaration": true,
    "allowSyntheticDefaultImports": true,
    "outDir": "./lib",
    "moduleResolution": "node",
    "lib": ["ES2020", "DOM"],
    "importHelpers": true
  },
  "include": ["src/**/*"]
}