dovecot - Sep 2019 - pigeonhole sieve "standalone"

hi.  i've been thinking (but, for years now!) of a replacement for
procmail, and pigeonhold sieve seems like a good candidate.  but, i run
nmh, not dovecot.  as i started install it (on arch linux), i started to
worry that it may be foolish of me to try to run it outside of a dovecot
system.

any wisdom about that would be gratefully received.

thanks in advance, and thanks for the software.

Greg Minshall