I am a Japanese person making a service that allows me to post e-books.
I’m thinking of using an open source epub viewer called Bibi (https://bibi.epub.link/) as a viewer.
Download the Bibi file
Upload the folder “bibi-bookshelf” in the file to the server
Upload and save the epub file in that folder
Is it possible to upload a folder to the server and save files in it with bubble?