expose the libsecret dbus api with pass as backend
Install dbus-org.freedesktop.secrets.service in /usr/share/dbus-1/services/ and org.freedesktop.secrets.service in /usr/local/lib/systemd/user/. dbus-org.freedesktop.secrets.service assumes that the pass_secret_service executable is installed in /usr/local/bin/pass_secret_service. If that is not the case on your system, then you will need to modify the ExecStart path.
Once these files are in place, you will need to run systemctl daemon-reload. Now whenever a program tries to access the libsercret dbus API, dbus should start pass_secret_service automatically.
