Inkscape link mechanism is very MacOs specific

[mutterer]

more precisely:
https://github.com/mutterer/figurej/blob/master/src/macros/inkscapeNotify.ijm#L9
shows how an svg panel is opened, after it's path is passed to this macro from the Inkscape_Link plugin:
https://github.com/mutterer/figurej/blob/master/src/plugIns/Inkscape_Link.java#L99

and the following line
https://github.com/mutterer/figurej/blob/master/src/macros/inkscapeNotify.ijm#L12
shows how I had to hack into the application package to pass parameters to inkscape to use a command that requires several parameters that could not be passed to the Inkscape.app directly.