First suggestion would be to research the difference between patent and copyright.

If you don't copy anyone's work, you are not violating a copyright.

Second suggestion would be to form an LLC if you have patent concerns. Patent rights usually don't come into play until a significant amount of money is involved. Otherwise, the litigation fees can't be justified. An LLC can be used to avoid personal liability and severely limit the amount in play for "jackpot justice". You can form one online at minimal cost.

The idea is to become a rock --- everyone knows you can't get blood out of a rock and most sensible people won't even try.