njump is cool, but unnecessary centralization. Why not just use a custom URI like “nostr://mylink” and then your operating system can determine what is the default app to open those links in? 

 Sure, if people can paste that into a browser and things just work that would be better. But I don't think they can do this right now. 

 A custom app URI only works for native apps. 

But it’s shockingly easy to implement because you don’t need to get it registered as an officially supported protocol in browsers. 

https://developer.apple.com/documentation/xcode/defining-a-custom-url-scheme-for-your-app

https://developer.android.com/training/app-links/deep-linking