> Nevertheless, "On my Trisquel 8 system, (...) setting DISPLAY=:1 (...)
gives the error [Sabrinakitty] report[s]"
So to clarify, using your instructions works on your Trisuel 8 system when
you use "DISPLAY=:0", but gets the "Mir" error with "DISPLAY=:1"?
> I ended up suggesting either gksu or sudo -HA. However, as far as I
understand, pkexec is the recommended solution nowadays. gksu will certainly
not even be in Trisquel 9's repository, because it is not in Ubuntu 18.04's,
for security reasons.
Yes, gksu is gone. I had to modify Add/Remove Applications to use pkexec
instead so that it would work on Trisquel 9.
Whonix's sandbox-app-launcher os a WIP, but appears to use sudo at this time.
https://github.com/madaidan/sandbox-app-launcher/blob/67dcc940c80a77f41c703b9c8164329de7e06cf0/usr/bin/sandbox-app-launcher#L178
