gmaniac

It's my project, hardly alive, but great to see that it's still useful. :-) Will migrate to github shortly and let you guys know.

various usability details

No bugs. At all. There's simply no use case to provide /dev/null as config file. Make a shell script to loop that number of times. No default advertised in help/man page: there's none. If you want to suppress stdout either use daemon mode or redirect stdout pipe to /dev/null. Not reaching 15fps is expected behaviour. "Slowliness" of your system is not within the scope of vgrabbj. Feel free to submit patches, if you whish to enhance vgrabbj.