Cryptocurrency APIs for Payments in Bitcoin, Ethereum, Litecoin, Etc.

I see that PayPal is built into the system.
Is it possible to include cryptocurrency payments like BTC (Bitcoin), ETH (Ethereum), and LTC (Litecoin) as well?

Hi anatomi, and welcome to the Gibbon community. This is an interesting question, and although BTC is a currency option in the system, you are right that payment is not available. I would imagine this is something that could be achieved, but it is outside of the current aims of the Gibbon team in terms of Core development. Do you know any coders who might be willing to develop this and contribute it to Gibbon?