Ghost/ghost/core/jsconfig.json

{
  "include": ["core/**/*.js", "test/**/*.js"],
  "compilerOptions": {
     "checkJs": true,
     "module": "commonjs",
     "target": "es2018",
     "moduleResolution": "node"
  },
  "exclude": [
    "core/built",
    "core/admin"
  ]
}