[Zeitgeschehen]

That would be fine because that someone would not be a competitor of the company. Although you have to consider that if you earn money while being paid through such an agreement your earnings are partly deducted from them. So if you find a job which pays the same as before, your old company will only need to pay until your income reaches 110%(125% if you moved for your new job) of your old income. You are also not allowed to "maliciously refrain" from working in that time. (But that is interpreted quite lax for the employee)