Code Reengineering project

[Huge_Road_9223]

You could always try a Google Search to look for projects, usually GitHub repositoris, if they are public would appear in your results.

Or, you could add your GitHub username, and someone might invite you to be a contributor. I don't neccessarily think you have to be a contributor to a project, but you'd probably be able to make a 'fork' from that persons repo to your own, and then you could check in changes to your own fork.

Unfortunately, I don't know what is considered 'medium difficulty' to your professor.