A few months back I was looking at where various TECO ports were packaged (for research) and discovered that someone had put hilariously little effort into the Nix package. Turns out buddy didn't even put the basic effort in and submitted the Ultrix port of mflteco unmodified. (which will absolutely not compile on any modern system) Fortunately it looks like someone realized and replaced it with TECOC, which is probably what someone searching for TECO in their package manager would want.
TLDR: please make sure your package compiles before you submit it to an unvetted package repository.