Not a stripe member but i would assume that anything that involves intense security auditing, PCI, etc would be seperate codebases that rarely change.
(eg cc handling could anon the CCs in a service before they reach the main app)
The integration with 3rd parties is a seperate issue that exists no matter of it is banks or not - i would guess they abstracted that as well as services or libs and decide case by case.
Comments
Not a stripe member but i would assume that anything that involves intense security auditing, PCI, etc would be seperate codebases that rarely change.
(eg cc handling could anon the CCs in a service before they reach the main app)
The integration with 3rd parties is a seperate issue that exists no matter of it is banks or not - i would guess they abstracted that as well as services or libs and decide case by case.