Nano is an open-source, decentralized crypto project. It started as “RaiBlocks” before being rebranded at the beginning of 2018. The coin aims to replace fiat currencies, much like the original idea behind Bitcoin. Nano uses a data structure consisting of many blockchains called the Block Lattice that is supposed to perform faster and more flexible than Bitcoin.
Nano transactions consist of two parts: send and receive. The PoW mechanism is used to send in order for representatives to receive the transaction. Nano also uses the principles of Open Representative Voting, which does not rely on expensive mining and provides sustainability. Nano transactions are fast and fee-less.
The only thing you will need is a NOWPayments account and a generated API key. After that, you can easily add donation or payment buttons, widgets, and invoices. Paying with crypto is the future, and offering this functionality on your website is a step in the right direction.