When I launched my Mini App at https://nexart.xyz/miniapp, everything appeared correct. The domain was verified, Warpcast previewed the embed perfectly, and the metadata passed all validation checks. But even after casting the link, nothing showed up in Coinbase Wallet’s feed. No splash, no frame, no Mini App. So I started digging. Here’s a breakdown of what I tried, what failed, and what finally made it work — not as a definitive Coinbase guide, but as a technical discovery others might find...

When I launched my Mini App at https://nexart.xyz/miniapp, everything appeared correct. The domain was verified, Warpcast previewed the embed perfectly, and the metadata passed all validation checks. But even after casting the link, nothing showed up in Coinbase Wallet’s feed. No splash, no frame, no Mini App. So I started digging. Here’s a breakdown of what I tried, what failed, and what finally made it work — not as a definitive Coinbase guide, but as a technical discovery others might find...