I'm making https://www.npmjs.com/package/vercel-cron to be able to run CRONs locally with no config. I'm currently using https://www.npmjs.com/package/croner but I'm not convinced its allowing/disallowing the same CRON expressions (for example, it allows CRONs by the second). I'm sure the hosted vercel runs CRONs however it wants, I just want to use a CRON library that's as close to equivalent.