What do use on iOS similar to Amber as a remote signer? Nostore safari extension is no longer supported. There is also Nostrum but only in TestFlight. #asknostr
Discussion
https://testflight.apple.com/join/DUzVMDMK
or
https://testflight.apple.com/join/8TFMZbMs
They are both in TestFlight, too, but I think those are currently the only options. Nostash is forked from Nostore.