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From:
André Arko
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Variable outputs from jj to a fixed length zsh array
https://andre.arko.net/2025/06/19/variable-outputs-from-jj-to-a-fixed-length-zsh-array/
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While working on my shell prompt for jj, which will get a much longer post on its own shortly, I ran into a fascinating mismatch between different programs’ ideas of “empty”.