tsconfig.json

{
  "compilerOptions": {
    /* Needed to import CJS modules like Jest */
    "allowSyntheticDefaultImports": true,

    /* Emit additional JS to ease support for importing CJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
    "esModuleInterop": true,

    /* Use ESM by default instead of CJS*/
    "module": "ES2022",

    /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "target": "es2022",

    "moduleResolution": "Node",

    "paths": {
      "~/*": ["./*"]
    },

    "baseUrl": "./src",
    "outDir": "build",
    "rootDir": "src",
    "sourceMap": true,

    "forceConsistentCasingInFileNames": true,
    "skipLibCheck": true,

    "strict": true,
    "allowUnreachableCode": false,
    "exactOptionalPropertyTypes": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "noUnusedLocals": false, // causes hard failures when iterating in dev, enforce with eslint instead
    "noUnusedParameters": false
  },

  "exclude": ["node_modules", "jest.config.ts"]
}