What’s usually the hardest part when switching from individual game integrations to a single aggregation API like this?

Hello everyone, I found this while reading comments under an article about game aggregation technology. One user linked https://casinoapi.solutions/, so I checked it out. What caught my attention was the scale—thousands of games доступні через єдиний API. I liked how the site focused on simplifying integration rather than complicating it. It made the whole process feel more efficient and realistic.