Wake me up at 420

Is there a way to plug in a dynamic countdown that would show up live on Nostr that we could bookmark? Because things like this go out of date every 10 minutes.

excited!!!

nostr:note10kguxh6q2cjnjrl08f7kl7m0akkv8txxz225h6vd4rd50qfyfrksnjke96

Wake me up at 420 blocks to go