commerce2
There are 3 repositories under commerce2 topic.
jai-o/drupal8-commerce2-offsite-gateway-example
Offsite payment gateway demo for Drupal 8 & Commerce 2
0Sarah0Al/commerce_other_services
This module's idea is based on having moderator's/admin set the price of the order item in advance for customers.
robokassa/cms-drupal
Официальный модуль приема платежей Robokassa для Drupal 8 Commerce 2.x