This should mirror the behavior we implement for sudo: The TERMINFO and
TERMINFO_DIRS variables are inherited from the normal user's
environment, so terminfo files installed in the user's profile can be
found by ncurses applications running as root.
Previously, for processes launched by doas the unwrapped doas binary preceded the
setuid-wrapped doas binary in PATH.
This caused error `doas: not installed setuid` when running doas from
processes launched by doas.
doas seems to short-circuit the PATH lookup when called like
`doas -u myuser doas -u myuser ...` so the error doesn't appear in this case.
`doas` is a lighter alternative to `sudo` that "provide[s] 95% of the
features of `sudo` with a fraction of the codebase" [1]. I prefer it to
`sudo`, so I figured I would add a NixOS module in order for it to be
easier to use. The module is based off of the existing `sudo` module.
[1] https://github.com/Duncaen/OpenDoas
