This is a known bug and can be remedied by using the command pip install -system -target vendor -r requirements.txt instead. Issues with Ubuntu: Please note that running the above install command can fail on some versions of Ubuntu, saying 'can't combine user with prefix'. Optionally a Google Drive can be used to host the calibre library -> Using Google Drive integration

Set Location of Calibre database to the path of the folder where your Calibre library (metadata.db) lives, push 'submit' button.

Point your browser to or for the OPDS catalog.

Execute the command: python3 cps.py (or nohup python3 cps.py - recommended if you want to exit the terminal window).

Alternativly set up a python virtual environment.

Install dependencies by running pip3 install -target vendor -r requirements.txt (python3.x).

Login via LDAP, google/github oauth and via proxy authentication.'Magic Link' login to make it easy to log on eReaders.Ability to hide content based on categories and Custom Column content per user.Upload new books in many formats, including audio formats (.mp3.Support for reading eBooks directly in the browser (.txt.Sync your Kobo devices through Calibre-Web with your Calibre library.Send eBooks to Kindle devices with the click of a button.Restrict eBook download to logged-in users.Support for converting eBooks through Calibre binaries.Support for editing eBook metadata and deleting eBooks from Calibre library.Create a custom book collection (shelves).Filter and search by titles, authors, tags, series and language.User Interface in czech, dutch, english, finnish, french, german, greek, hungarian, italian, japanese, khmer, polish, russian, simplified chinese, spanish, swedish, turkish, ukrainian.User management with fine-grained per-user permissions.This software is a fork of library and licensed under the GPL v3 License. Calibre-Web is a web app providing a clean interface for browsing, reading and downloading eBooks using an existing Calibre database.

Calibre web server convert