xsv does not get a lot of updates [1] and a fair amount of PRs seem to get
closed because the maintainer does not have time to maintain the extra
code. But it seems that many want to expand the featureset of the base of
xsv, which seems to be why qsv was created.
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[ 3.2 ms ] story [ 14.3 ms ] thread[1] https://github.com/BurntSushi/xsv/issues/267