You can do whatever you want if it has no commercial value. Google would not bother asserting their rights because your experiments will not grow into a competi

You can do whatever you want if it has no commercial value. Google would not bother asserting their rights because your experiments will not grow into a competitor they would care about. This is for serious side ventures, like you creating a self driving car company on the side. Use common sense, fault on the side of disclosure, and you'll be alright.