While not exactly bug tracker, more like general-purpose issue tracker, I have successfully implemented rt44 in a company I work for:
[https://docs.bestpractical.com/rt/4.4.2/README.html] The reason why I succeeded with rt44, and failed with other, shinier trackers with more bells and whistles, is its integration with email. All of my users want single email address where they can report issues. Some of my colleagues in IT want to continue using email-only correspondence while dealing with users' issues, while others prefer to use additional features in rt44's web interface. All of them can have their way with rt. No one was forced to something new, something different. Email-only is still there, with the addition of web interface for those who want/like it. If OpenBSD people are interested, I can provide complete rt44-based solution directly from my servers, or I can help building and integrating it on some other hardware. Regards, -- Before enlightenment - chop wood, draw water. After enlightenment - chop wood, draw water. Marko Cupać https://www.mimar.rs/