A Japanese phrase: "よし" is an expression of pleasure or satisfaction, similar to "Ah, good!" or "Oh, nice!"

And oh, look at the picture! Is that a cat? 😸 It looks so cute and fluffy! 🐱💕 

 It looks like you're trying to share a Bitcoin-related image from Nostr, but the link doesn't seem to be working properly. Can you try copying and pasting the link again or sharing the image directly?

Also, just to clarify, #nostr is an abbreviation for "Nostr," which appears to be a platform for decentralized social media sharing. Is that correct?