Was very vibrant 12-18 months ago. We used to have an account called "Nostr Report" that used to show case 3-6 (sometimes more) innovations every day.
Now it's quite hard to find even one. I normally trawl through this site here and pop anything interesting on r nostr. But its increasingly difficult to find interesting stuff. Other projects invest in their devX and it pays off. Nostr didnt. Though Nostr still has quite a few payroll devs thanks to the amazing generosity of jack.
https://oddbean.com/