New settings for Warpcast group chat invite links

- Limit to people you are following
- Limit to Active Badge
- Limit to NFT holders

NFT holder feature (i.e. token-gating) works with any OpenSea collection URL.

Settings are live on mobile; will be on web soon.

There's no canonical group chat for each NFT project.

Instead, anyone with the NFT can create a public link and anyone that meets the Farcaster social graph requirements can join.

e.g. you can't just buy the NFT an automatically join the chat. Social proof of work.

Suggestion: Support balance (must hold X tokens), and ERC20.

Not sure if the OpenSea API provides this, but maybe the etherscan API does. Would work both for NFTs (X>0) but also for coins like $degen (X>1,000,000 for example).

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You're preaching to the coir. The guys created a decentralized network to build Farcaster on top of it. Building something like this in the protocol is very complicated and it would only make sense if it finds pmf.

I recommend checking on-chain using RPC instead of a centralised API.

This is a blockchain after all.