Showstopper used in a sentence

Showstopper in a sentence as a noun

It's probably very long to fill in.- required full name and email are a showstopper for me. Having a required email is ok of course, but why do you make it required ?

As someone living in New York City, the lack of public transit integration is a complete showstopper.

After a few years as a product manager, I learned that the best response to a showstopper bug reported by a single user was to just sit on my hands.

Tones can be tricky to get used to, learning the writing system at the same time is like learning two languages at once, one spoken, one written, and an unfamiliar character can be a showstopper for comprehension if you don't have a smartphone or dictionary handy.