Friend who is not a software person sent me this tweet, which amused me as it did them. They asked if "runk" was real, which I assume not.
But what are some good examples of real ones like this? xz became famous for the hack of course, so i then read a bit about how important this compression algorithm is/was.
I'd put the deflate algorithm over the LZMA algorithm just because deflate is used by both windows (zip) and Unix (gzip). Windows I don't think has added LZMA/xz support until recently if at all.