tsconfig.base.json

{
  "compilerOptions": {
    // project options
    "target": "ESNext",
    "module": "ESNext",

    "removeComments": true, // Strips all comments from TypeScript files when converting into JavaScript- you rarely read compiled code so this saves space

    // Source Map
    "sourceMap": true, // enables the use of source maps for debuggers and error reporting etc
    "sourceRoot": "/", // Specify the location where a debugger should locate TypeScript files instead of relative source locations.

    // Module resolution
    "esModuleInterop": true, // fixes some issues TS originally had with the ES6 spec where TypeScript treats CommonJS/AMD/UMD modules similar to ES6 module
    "moduleResolution": "node", // Pretty much always node for modern JS. Other option is "classic"

    // Strict Checks
    "strict": true, // enable all of the strict mode family options
    "allowUnreachableCode": true, // pick up dead code paths

    // Linter Checks
    "noImplicitReturns": true,
    "noUncheckedIndexedAccess": false, // accessing index must always check for undefined
    "noUnusedLocals": true, // report errors on unused local variables.
    "noUnusedParameters": true // report errors on unused parameters in functions
  },
  "exclude": ["node_modules", "dist", ".direnv"]
}