Ask HN: Seeking Realistic Code Base for Product Demo

We're prepping a product demo and need a code base that mirrors a real-world company environment. Our issue: open-source projects often lack the detailed documentation, complex issues, and rigorous coding standards found in a corporate setting.

We're looking for a repository that reflects professional coding practices, quality guidelines, and security standards. If anyone knows of resources or repositories that fit this bill, your suggestions would be invaluable.

Thanks in advance!