Great to have alternatives, but wish there was a “Why” section in readme
It seems that this is probably slower and consumes far more resources than cat. It also does pretty printing and syntax highlighting. From a Unix standpoint, I would say this is not a cat replacement but a pretty replacement.
A cat alternative would have to handle this correctly:
$ </dev/zero cat >/dev/null
or it's not really a cat alternative. (Yes, variations on this theme are very useful in scripts and daily shell hacking).