This is a template for tsconfig that I've found useful over my time developing angular projects

tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "paths": {
      /*
        these paths are defined like this to make it easier to reference the different files
        basically, instead of using full relative paths from the feature modules if you want
        to import something from the core module you can simply do
        import { ClassName } from '@core/location'
        instead of having to do
        import { ClassName } from '../../core/location' (or the equivalent relative path)
        
        This referencing of paths has been extremely helpful in the past
      */
      "@environments/*": ["src/environments/*"],
      "@core/*": ["src/app/@core/*"],
      "@shared/*": ["src/app/@shared/*"],
      "@featureModule/*": ["src/app/featureModule/*"],
    },
    "target": "es5",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2017",
      "dom"
    ]
  }
}