@electron-forge/maker-squirrel/tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "target": "es2019",
    "outDir": "dist",
    "lib": [
      "dom",
      "es2019"
    ],
    "sourceMap": true,
    "rootDir": ".",
    "experimentalDecorators": true,
    "strict": true,
    "esModuleInterop": true,
    "declaration": true,
    "typeRoots": [
      "../../../node_modules/@types",
      "../../../typings"
    ]
  },
  "exclude": [
    "node_modules",
    "dist",
    "test",
    "index.ts"
  ]
}