Using Cron instead of scheduling in code

Question

Im using `node-schedule` to do the following in my code;
```js
schedule.scheduleJob("*/15 * * * *", async () => {
  await runStuff()
});
``` but just noticed the Cron Schedule on railway settings, could I do away with the scheduler-in-code stuff with this, and just my code self executes `runStuff()` - or am i misunderstanding the cron stuff on railways side of things