You're killing me (and @david ) 😂 Have you looked at 
NostrHub
NostrHub | Discover and Publish NIPs
Explore official NIPs and publish your own custom NIPs on NostrHub.
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If you can’t see the NIP after signing in, try changing your relay to Ditto or Damus
i've been using NIP-51 Lists for ZapTrax for a very long time since last spring / early summer.