disable this system security feature temporarily,
This should be - if I’m not mistaken - possible using the pip env var I posted about earlier, like this:
PIP_BREAK_SYSTEM_PACKAGES=1 sudo apt install howdy
Or exporting it for the current shell, before running the installation
export PIP_BREAK_SYSTEM_PACKAGES=1
But I personally highly discourage it, because - AFAIK - if it even works it will mess up the deps in your system.
I wish they used them all, especially
XDG_CACHE_HOME
which can become pretty big pretty fast.