I believe Nostore is for Safari only (like signing zap.stream messages). But it cant sign a Damus message for example. Right? 

 Nostore works only in the Safari browser as an extension. The Nostur client app has a built in signing tool though. You have to manually copy/paste an event json into the signer. How does Amber work? Would be cool if that could be a little more automated. 

 You don't have to copy anything. It's automatic. Though the app does have to be open and running in the background. In the future it will have a system service that runs I believe that I read. 

 That’s cool! @Fabian is this something the signer in Nostur could do? 😃😁 

 Yes this should be pretty easy to add, not sure if this is the best experience for the other app or website because I don't see any callback or redirect handing control back. But for the one off case of signing a single event I could add that. 

 Screenshot of the what the Nostur signer looks like. https://image.nostr.build/1a38dcbe241c0212c741dade11a38085b8f70ac9048851c395135c3c3ccf77de.jpg  

 Thanks.