Function writeConfig

speedtest/speedtest.ts:197–206

(patch: Partial<SpeedtestConfig>)

    fs.writeFileSync(SPEEDTEST_JSON, JSON.stringify(next));
  } catch (error: any) {
    console.error("Failed to write config:", error);
  }
}

function getDefaultServer(): number | null {
  const cfg = readConfig();
  return cfg.default_server_id ?? null;
}

function saveDefaultServer(serverId: number | null): void {
  writeConfig({ default_server_id: serverId });
}