function get(key: string, def?: string): string { const value = Deno.env.get(key) ?? def; if (value !== undefined) { return value; } throw new Error(`Missing environment variable '${key}'.`); } export default { debug: !!parseInt(get("DEBUG", "0")), hostname: get("HOSTNAME", "127.0.0.1"), port: parseInt(get("PORT", "8080")), signKey: get("SIGN_KEY"), };