It's a bit of a Catch-22. Work around it by:
- Make a app (or script) post for your app (or script).
- Also tag it with placeholder.
- And put "
PLACEHOLDER -" at the beginning of the title.
Also, indicate in the post text that the app is not yet ready for prime time.
This has already been done a few times, for example:
- "Chatdump - a site monitor (placeholder)"
- "A small Stack Overflow browser for Android, for a school project (Placeholder)"
Warning: Don't abuse this, or create an essentially empty post and not update it expeditiously. Otherwise the question will be closed and, if not corrected, quickly deleted.