I have wanted to try npub.cash and use it as my handle but never understood how to do that. Is there documentation on that?
You can test the experimental version of npub.cash v2 on https://cashu.me ๐ฅ
Settings -> Experimental

Discussion
No, not really as it depends on the Cashu wallet you use. You can enable it in the settings of Cashu.me for example. Sovran uses it as the default Lightning address for its users
Thanks Egge for the reply. I know you are a very busy guy.