There are no other software products called Firefox (right now). Foxes are not software.
There is Microsoft Windows Ink which does handwriting recognition.
Think about namespaces, in the software namespace, Ink is a loaded term, and most of its use has nothing to do with command-line apps.
This is far closer to a Rust implementation of the readline library. Again, nothing to do with pen recognition software, which is the common use of Ink.
You're intentionally looking for confusion when there is none.
They called it Ink because they considered the terminal is a canvas where you draw stuff. That's it. There's no way anyone will ever confuse a CLI rendering lib with an OCR or a vector graphics editor or whatever.
