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Quilcast Notes

What we learn building Quilcast, a small open-source Farcaster client for Hypersnap that runs in the browser.

November 1, 2026
What a Farcaster mini app can and can't do inside Quilcast
How Quilcast hosts Farcaster mini apps: a sandboxed iframe, 26 allowed SDK calls, and wallet checks that refuse Farcaster account signatures. Tested 2026-11-01.