common.json

{
  "compilerOptions": {
    // https://kangax.github.io/compat-table/es6/
    "target": "ES2015",

    // https://caniuse.com/#feat=es6-module
    // https://nodejs.org/api/esm.html
    "module": "CommonJS",

    // Under the estimation that most projects are dependencies, rather than end-products.
    "declaration": true,

    // This is quite the standard, isn’t it?
    // resolved relative to this file
    "outDir": "../../lib",
    "rootDir": "../../src",

    // https://blog.mariusschulz.com/2016/12/16/typescript-2-1-external-helpers-library
    "importHelpers": true,

    // Because we are strict, like that
    "strict": true,

    // Boy, are we strict...
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,

    // Under the impression that source maps in separate files don’t work when debugging Node.js.
    "inlineSourceMap": true,
    "inlineSources": true
  },
  "include": [
    "../../src"
  ]
}