A few days ago i wrote a cryptocurrency.Ik they are lots of vulnabilites and not ready for true deployement.
However iv seen people say in etrc-20 some people dont add this thing where u must pay etheurm to get tokens. Idk how to add this. For more information im using the koven test net.
if u need my code ask in comments. i tried rewatching those tuts but it dint get me far.