Hi @Third_Son, please see this thread here: https://dgrin.com/discussion/comment/2089126#Comment_2089126
We're working with CaptureOne to see if they can improve the infrastructure to how plugins work in Capture One. If they can make improvements, we'd love to add an integration into Capture One, as its a tool many of us at SmugMug use every day. But for now an integration with CaptureOne is not planned. Overall though, we'd love for every piece of photo software to have integrations with SmugMug, so it's definitely something we'd love to see get built in the future.