To install gopass, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install gopass
To see what files were installed by gopass, run:
port contents gopass
To later upgrade gopass, run:
sudo port selfupdate && sudo port upgrade gopass
Reporting an issue on MacPorts Trac
The MacPorts Project uses a system called Trac to file tickets to report bugs and enhancement requests.
Though anyone may search Trac for tickets, you must have a GitHub account in order to login to Trac to create tickets.