He wrote a whole article answering this question. If you want to know his answer, read the linked article.
You can add it by going to their integrations and searching for getalby.
Figured it out.
Just added a new event, went to apps, and chose getalby. 
cal.com the open source alternative to Calendy, now has Lightning support via nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm ⚡⚡⚡
Very curious to try this.
Any links on how to begin using it?
What vpn would you all recommend?
It is so fun to see this project develop. Was telling my non-coiner friend about it, an hope to Orange pill him and then both of us come out and visit.
He is big on freedom and community, so your project is helping him see those values come alive in the Bitcoin community.
Love Muun, and used it to top up my Alby wallet. BUT, I can't seem to get alby lightning address to work with zaps.
When I try to zap myself, or others try to zap my alby wallet, they get an error.
Mind trying to see what I mean?
Just added my lightning address here, anyone wanna try zapping it?