How to install the Merx plugin.
Set up your PayPal/Stripe keys.
How to set up products and add them to the cart.
How to make sure you get all the data you need.
How to use build in payment methods and create own gateways.
List of all available options.
See what hooks can do for you.
How to translate error messages.
This is a working draft for security advices on using Merx.