This is the Paygate PayWeb3 plugin for PrestaShop. Please feel free to contact the Payfast support team at support@payfast.help should you require any assistance.
Please navigate to the releases page, download the latest release (v1.8.4) and unzip. You will then be able to follow the integration guide PDF which is included in the zip.
Please submit pull requests with any tweaks, features or fixes you would like to share.