Where is the source. Will there be source? If there is no source, did you actually give it your nsec?
Discussion
Good question, I could not find the source yet. #[4]
And no, the cool thing about nostr is that it's trivial to create new keys to try out new clients.
It's trivial, but I see some not-insubstantial excitement about plebstr, which leads me to believe that some people simply seeking a pleasant UX are actually giving this thing their nsec, which worries me.