4Chan is like a Reddit but without moderators, right?

I remember reading about a white labelled Nostr client some time ago, but of course, I forgot to bookmark it.  

Any nostr app that simply opens a tab "what's happening" and filters on #4CHAN or something similar would do, no? 

Also, force (or hide) all posts made in this app to include the #4CHAN and there you have a decentralised 4CHAN.

If you really feel cute, you might add a (paid) relay option in this client.