Varia

Varia resolves and validates configuration values from ordered sources.

import { env, Varia } from "varia";

const varia = new Varia({ sources: [env()] });

const config = await varia.load({
  DATABASE_URL: Varia.string(),
  PORT: Varia.number().int().min(1).max(65_535).default(3000),
  DEBUG: Varia.boolean().default(false),
});

See the repository README for the complete API and custom Source example.