FYI we just removed NWC from our marketplace because it is deprecated and being replaced by Alby Hub, which has NWC baked in. I do not think the @Alby team will be maintaining NWC as a separate service going forward. They can confirm. 

 Ok gotta wait for alby hub to be available 

 Hey, thanks for your interest! Alby Hub is totally available - do you need some help with it?

Your Alby Extension can be linked to CLN node as well, you don't need to migrate.
Alby Hub however, doesn't work with CLN so far 

 Indeed, we don't plan to develop NWC app for Start9, it's reduntant having Alby Hub. 
However, feel free to use it, fork it ;)