There is a hard line between software that is production-ready and a demo that happens to run on your laptop. Here is what separates them.
Area
Production-ready
Demo that breaks in production
TestsAutomated tests cover the critical paths.
Tested by clicking through it once.
DeploysCI/CD, repeatable, one button.
Manual, from someone’s machine, fingers crossed.
VisibilityMonitoring and error tracking alert you first.
You find out when a user emails, or tweets.
Under loadTested against realistic concurrency.
Fine for one user, unknown for a thousand.
When it breaksTested rollback, back up in minutes.
Panic, manual fixes, extended outage.
SecurityAuth, secrets, and inputs handled properly.
Hardcoded keys and trusting user input.