dev-util/
cookiecutter

Command-line utility to create projects from cookiecutters (project templates)

https://github.com/cookiecutter/cookiecutter

There are no pull requests

You think something is missing here?
Start with filling a new pull requests.

If you also like to help the Gentoo project, you can consider sending a Pull Request via GitHub.
Before doing so, you might want to take a look at the wiki page.