Thank you all for your suggestions. The Problem is that downloading with ghostcloud doesn't work on Xperia X at the moment. I still try to find out what the problem is.
Hi @dremonon , it sounds like you got the app uploaded & published successfully, congrats! To answer your question, the .click file is the packaging format (similar to an apk or a deb) and you are correct that the .click file is what you need to upload for your app to be on the OpenStore.
Although, thinking about it, I am not sure if our API key can handle the additional load of data calls. We might need to implement an option for users of snap/appimages to use their own API codes.
This should be solvable, but should be considered.