Popular Solana DeFi discussions from September 25, 2026 highlight emerging infrastructure: Wallet Court (a ShoutIt/Nansen product for analyzing wallet history), DualMint's machine-backed RWA yield vault, OnRe's PropAMM liquidity system, MoonPay's cross-chain trading expansion, and significant stablecoin liquidity growth on Solana ($17.7B, up 12.5% weekly).