[bboozzoo]

You forgot to include https://github.com/9front/9front/tree/front/sys/src/libflate which gzip is built around, which brings it closer to 10k lines.

[commandlinefan]

I wrote a standalone gzip decompressor in about 500 lines of code (including comments, with braces on the next line), with no dependencies at all: https://commandlinefanatic.com/cgi-bin/showarticle.cgi?artic...

[carlos256]

Interesting, the decompressor in Jdeflate is around 4k LoC. https://github.com/Jpn666/jdeflate