theoretically you could set up a https redirect, other users are doing that, just make sure your server and accept CORS requests in the right way --- I recommend familiarizing yourself with https://github.com/nostr-protocol/nips/blob/master/57.md -- and doing some testing of your address from a separate nostr profile.....
Discussion
I already have an webserver with CORS and a json file pointing to Alby, but looks like they no longer accept this kind of redirect from my domain to my address @getalby.com , so I was looking for an alternative.
right - I wonder why they disabled that -- I wonder if there are security implications that get tricky
I got this working again, now it's working again my lightning address ivan@ivancarlos.me \o/
https://guides.getalby.com/user-guide/alby-account/customize-your-lightning-address/use-your-own-domain-as-lightning-address is still valid 😅❤️