tsconfig.json

{
  "compilerOptions": {
    "target": "es2017",
    "allowJs": true,
    "moduleResolution": "node",
    "allowSyntheticDefaultImports": true,
    "noImplicitThis": true,
    "alwaysStrict": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": false,
    "noFallthroughCasesInSwitch": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noEmitOnError": true,
    "noEmit": true,
    "inlineSourceMap": true,
    "inlineSources": true,
    "baseUrl": ".",
    "module": "es6",
    "skipLibCheck": true,
    "paths": {
      "my-app/*": [
        "app/*",
        "node_modules/one-addon/app/*",
        "node_modules/another-addon/app/*",
      ],
      "my-app/tests/*": [
        "tests/*",
      ],
      "one-addon/*": [
        "node_modules/one-addon/addon/*"
      ],
      "one-addon/test-support/*": [
        "node_modules/one-addon/addon-test-support/*"
      ],
      "another-addon/*": [
        "node_modules/another-addon/addon/*"
      ],
      "another-addon/test-support/*": [
        "node_modules/another-addon/addon-test-support/*"
      ],
      "my-app/mirage/*": [
        "mirage/*"
      ],
      "*": [
        "types/*"
      ],
    },
    "experimentalDecorators": true
  },
  "include": [
    "app",
    "tests",
    "types",
    "mirage"
  ],
  "exclude": [
    "node_modules",
    "dist",
    "tmp",
  ],
}