[Interest] Running as nobody, generating images

[Harri Pasanen]

Picking your collective brain here...

I'm trying to do some batch style image processing with a Qt app, using 
QImage.
As QCoreApplication / console everything compiled, but silently failed 
at runtime.

As QApplication with a MainWindow things started to work but looks like 
a display is required.
I tried to set a timer to run my app on N9 using dbus/timed, and while 
the application starts,
it seems to be always running as nobody:nogroup and thus fails, probably 
as it cannot get
hold of the display.  The timed docs say that it should run as user,
using Maemo::Timed::Event::Action::runCommand, but that does not seem to 
be the case.

I've thought about porting libgd, or using python-imaging, but these are 
almost overkill for me.
The only thing I'd really need is open png, drawPixmap(x,y) on it, save png.

Would you have other suggestions?

Harri