The new guy doesn’t know where you keep your git library.
They aren’t sure what libraries you are using.
They probably have no idea who uses your software or why.
To work on the bug you just gave them will take weeks, not days or hours.
If you are hiring a new member of the team, recognize that it will take 2 – 3 months to learn what they are supposed to do and start contributing to the team.
That’s 2 – 3 months of you working with them to teach them what they need to know to become a contributing member of your team.
That’s you, you hired them, that’s all you.
If you don’t have the time or will to invest that energy in that new person, then you’re not ready to hire them.