Well, you can't make a gift, then demand to be paid if the receiver (unexpectedly) makes money out of it. Better to foresee that offer paid services on top, e.g

Well, you can't make a gift, then demand to be paid if the receiver (unexpectedly) makes money out of it. Better to foresee that offer paid services on top, e.g.: https://raccoon.onyxbits.de/blog/bugreport-free-support/ https://raccoon.onyxbits.de/blog/bugreport-free-support/