I developed this for my personal usage, and it fills my needs perfectly. Not for you apparently. However, it is not because it does not work for you that you should characterize it as lousy coding.

Also note that with the quality of your feedback, there's absolutely no chance to see this extension improved for your use case. The day you are able to share more details about the problems you encounter with this extension, don't hesitate to open an issue at https://gitlab.com/rbauduin/ereaderify/issues