Sorry, 🏎 Delorean Time Machine couldn't find a snapshot of that URL in its Archive.

gemini://gemini.quux.org/9/Archives/mirrors/ftp.unicom.com/pub/gn-tools/sgmls-1.1.91.tar.gz

Possible reaons:

• Link to this URL was a typo in the original source
• This URL was excluded from crawling or archiving via robots.txt
• You found a bug in Time Machine! Beware world ending paradoxes!

Options:

Try the URLs directly. It might be live.

Try looking at the cached version of capsule's home page