Solana wallets on mobile

Wallet connection and transaction signing through Mobile Wallet Adapter (MWA), wrapped by @wallet-ui/react-native-kit (or @wallet-ui/react-native-web3js on the legacy stack).

MWA requires a development build on Android. Expo Go will not work. If the project has no development build yet, or does not exist, start with the solana-mobile skill.

Step 1: pick the stack — do this before writing any code

Write kit code. @solana/kit with @wallet-ui/react-native-kit is the stack to reach for, and everything in this file describes it.

There is exactly one reason to write @solana/web3.js instead: the project already runs on it. Check package.json first.