[pvibby762]

Don't worry, far worse than students using your code is the people who find it and attempt to demand that you write stuff for them for free. I'm not even joking at all.

Contrarily, I've chatted with plenty of folks who found some hobby project I wrote up and thank me for writing it and saving them time and/or frustration.

Open your source or don't, people may use it without asking, if this upsets you, then don't. Do what you want with your own work. A buddy of mine sent me a screen shot of google's AI citing some crap that I wrote, I replied, "Wow, I hope no one actually use that!"

When I'm looking for developers I kind of expect to see something on github aside from the standard git tutorial. I'd much rather read someone's code than force them to do some coding test.