If most of the code is the same, why don't just combine it together(WDL-YOL, WDL-YOLO..??
) and make options to enable/include the specific code?
For example if someone need resizing, he will include files with which can use that feature.
So then both (Youlean and Oli) can have their own features. And the other people will just "enable/disable" what they need.