CashuPayServer v0.5.4-alpha is out — a security and reliability release. CashuPayServer lets a small shop accept Lightning payments by speaking BTCPay Server's API, so e-commerce plugins built for BTCPay work with it by just changing one URL. No node or BTCPay instance; it runs on ordinary PHP shared hosting and settles through a Cashu mint. Four AI audits went over the server and the wallet library, and this release fixes what they found: fee handling on withdrawals, a double-spend path in exports, an amount-check bug, and an invoice-status check that stopped working after the first try. Still alpha. Keep balances small and withdraw often (or automatically). https://github.com/jooray/cashupayserver/releases/tag/v0.5.4-alpha