To clarify the definitions/meanings of the features that are included in the comparison, the below definitions are currently used:
The number of stars on the primary github (or other) source code repository.
The number of docker pulls on the primary docker image repository.
The number of contributors that have contributed to the project.
The date of the last git commit to the project.
The primary language used in the repository’s source code.
The software license listed on the code repository.
Does the project provide a demo instance
Is the project completely and forever ‘Free’, or does it have a subscription plan or support model?
Is there a method to automatically upload books from a mobile device?
Is a web interface provided?
Is an Android app provided?
Is an ios app provided?
Is a desktop app provided?
Can annotations be made on books (e.g. highlights, notes, etc.)?
Does the project support OPDS (Open Publication Distribution System) for book distribution?
Is reading progress synced across devices?
Are existing book directory structures preserved and browsable?
Can a custom curated by user list of books be created and organized?
Can books be shared with other users or non-users?
Is there a search for the books?
Can the full text of books be searched?
Is there any functionality to manage duplicates?
Can photos have user-defined (not AI) tags applied, and be filtered by those tags?
Does the project provide a docker image? Are there example docker-compose deployments?
Can books metadata be edited (i.e. Title, Description, etc).
Can there be multiple users?
Are alternative authentication providers supported? (OAuth, LDAP, etc.)