tsconfig.json

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "forceConsistentCasingInFileNames": true,
    "incremental": true,
    "lib": ["DOM", "ES2022"],
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUncheckedIndexedAccess": true,
    "outDir": "target",
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "typeRoots": ["node_modules/@types"],

    "rootDir": ".",
    "baseUrl": ".", // affects where output files end up
    "target": "es2021", // goal: ship *the most modern syntax* that is supported by *all* browsers that support our Wasm
    "module": "nodenext", // allow top-level await
    "moduleResolution": "nodenext", // comply with node + "type": "module"
    "esModuleInterop": true, // to silence jest

    "experimentalDecorators": true, // needed for decorators
    "emitDecoratorMetadata": true, // needed for decorators
    "useDefineForClassFields": false, // ensure correct behaviour of class fields with decorators

    "strict": true, // for the full TypeScript experience
    "strictPropertyInitialization": false, // to enable generic constructors, e.g. on CircuitValue
    "importHelpers": true, // reduces size
    "declaration": true, // declaration files are how library consumers get our types
    "noEmitOnError": false, // avoid accidentally shipping with type errors
    "allowJs": true, // to use JSDoc in some places where TS would be too cumbersome
    "sourceMap": true
  },
  "exclude": ["node_modules", "target"],
  "include": ["."]
}