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sittaon Unbuffered I/O Can Make Your Rust Programs Much Slower

For what it's worth, if you want the best performance out of Serde you have to use from_str or from_slice, regardless of if you pass a BufRead to it.

https://github.com/serde-rs/json/issues/160

sittaon Archivematica: Open-source digital preservation system

You'll want to be sure to test FITS thoroughly for your use case. It really needs some love. It's using some outdated tools and has a number of bugs. I submitted a bunch of PRs to the project this summer, but maintaining FITS is currently not a priority at Harvard, though I was assured that its not abandoned.

As a digital preservation aside, folks may be interested in OCFL[1], which is a preservation focused storage layout specification that had its 1.0 release last year.

[1] https://ocfl.io/