On 4/5/20 5:54 AM, J N wrote:
# Not maintained in Gentoo, doesn't build for 2 years, has only
# deprecated version present in Gentoo. Has a huge number of open
# bugs. Removal in 30 days. #642952
www-misc/zoneminder
This appears to be an active project.  There is a plugin for zoneminder and zmserver in mythtvplugins.  When I finish the mythtv version 31.0 bump I will start maintaining this package.