Blockchain engineer building cross-chain infrastructure across Aptos, Solana, and EVM.https://gunaseelan.dev/https://gunaseelan.dev/posts/cctp-v2-cross-chain-payments/https://gunaseelan.dev/posts/cctp-v2-cross-chain-payments/What changed from CCTP v1 to v2, how we use it in HashPay, and the edge cases you'll hit in production.Tue, 10 Feb 2026 00:00:00 GMThttps://gunaseelan.dev/posts/exact-output-swaps-in-move/https://gunaseelan.dev/posts/exact-output-swaps-in-move/How we implemented reverse AMM math in Move to guarantee exact output amounts in KanaAggregator, and why it matters for payment use cases.Tue, 20 Jan 2026 00:00:00 GMT