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E-book library management, one maintainer, two decades
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calibre is listed in reading, rss & e-books because it competes on utility: e-book library management, one maintainer, two decades. It's built by an independent, bootstrapped team — no growth-at-all-costs pressure, no ad-tax passed to you. Licensed GPL-3.0; pricing: free / donations. Its resource footprint is reasonable for what it does, though not featherweight. This entry is provisional — the scores are seeded estimates pending our full manual rubric pass, and the verification date will appear here once complete.
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