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Don't rely on any 'official' solution to maintain your digital library as those are sure to stop working in one way (company goes bankrupt or gets bought) or another (planned obsolescence, forced upgrade, etc) in a few years time. Configure your own using one of the existing tools; if you use Owncloud or Nextcloud you could use my OPDS Catalog app (https://apps.owncloud.com/content/show.php?content=168132), possibly combined with Reader (https://apps.owncloud.com/content/show.php/Reader+(ebook+rea...) for when you happen to be without a reader device. Try to send the industry a signal by refusing to buy encumbered books (DRM, proprietary formats, etc). If you feel like you absolutely must have a book which is only available in an encumbered format I'd suggest you convert it to an open and unencumbered format as soon as you get your hands on it. Store it in this format, it should be usable in years to come. Keep good backups, this is one of the advantages of a digital library which partly offsets its greater vulnerability to disaster compared to a physical library. It takes a lot of effort to destroy a physical library, but a simple rm -rf will do for a digital one. Store your backups in several locations, off-site, somewhere out on the 'net in an encrypted container file (free cloud storage accounts are handy for this purpose, just refresh them every now and then and don't rely on them as a single source). |
I don't feel strongly enough about it to avoid books I want to read that are only available with DRM, but I do insist on having an unencumbered copy.
And when a book is available from a source I know are good about not using DRM, I will aim to buy from there, and buy direct in preference to buying from a DRM-friendly outlet - e.g. I prefer to buy from O'Reilly direct for that reason.
The only form of "DRM" I don't mind are the e-book stores that provide you with a personalised copy that includes my name/e-mail, but otherwise leaves the book unprotected.