Lightning addresses are pretty awesome, they're the things that look like email addresses. You can learn more about them here or at the github. Here's a diagram of how it works:

My question is about redirection. For example, If I have a lightning address with a hosted provider like myusername@zbd.gg or myusername@coinos.io etc, how do i set up the file at mydomain.com/.well-known/lnurlp/myusername so that when people send to myusername@mydomain.com it will automatically redirect them to the hosted provider, e.g. myusername@zbd.gg? Is that something that can be done? Thank you!