I’m working on one! It’s like the Alby chrome extension, but it’s a desktop app. Very early stage. There aren’t any supported desktop apps that can request event signings yet, but I’m working with nostr:npub1ygzj9skr9val9yqxkf67yf9jshtyhvvl0x76jp5er09nsc0p3j6qr260k2 who is building a desktop app that will be compatible. I’m also planning on building a chrome extension so it will work on the web as well.

https://github.com/nodetec/keystache