https://ulomira.com/books/fast-low-fee-crypto-payments

I wrote a short book focused on the real-world architecture of Solana USDC payments in React.

It avoids theory and focuses on: • transaction trust models • wallet vs app responsibilities • confirmation strategies • production-ready payment flows

I wrote it after seeing many payment integrations fail due to incorrect assumptions.

Looking for feedback from developers who’ve built or reviewed payment systems.